Calculator ∞ Customer Service

Calculator ∞ Positive Reviews

Great calculatorI use this calculator for many advanced and all of my variable based calculations for one reason - this calculator allows you to input the equation in its original form. For students, that means they can input their equations in textbook format father than a long string of numbers and variables with excess parentheses so the program can sort it out. A couple things I would like to see. Needs and updated manual. Also, still can’t find the infinity button needed for some calculations. Also, would like the ability to tell it which variable to solve for. Right now it automatically solves for x but there are times i have multiple variables and need specific ones. Also, I would like to complement this developer for always upgrading the existing app instead of trying to get people to repurchase a newer version as other app developers have been trying. I feel confident this developer won’t let his existing customers down and that says a lot these days..The emusifyerVersion: 4.8

Full blown TI-like calc on iOSI used the free version for a year or so and bought pro when on sale. Best decision hah! The pro version of this calc can do basically anything. There are even some calculus level functions I’ve only ever seen on big TI calcs like the 89. I love that it can be a side app on the iPad Pro next to another app, and its size is adjustable without UI problems. Great for multitasking. Only criticism is that I can’t set it as my default calculator app (Apple problem). Also, could use a GUI update, feels a little 2013 when it comes to the graphical assets..EBissbortVersion: 5.8.7

You have to pay for new featuresI love this app. It’s an amazing app and a great calculator. However the new UI is very strange. It used to be set up in a much better way, but it looks much more aesthetically pleasing now then it did before. It makes sense why they changed it. However my problem lies with me not being able to use the camera function without paying a EVERY MONTH. It doesn’t make sense why they would make you pay for it when apps like Photomath exist. I get that you need to use a third party software that must cost a lot to borrow, but c’mon. You guys should try to develop the best software out there. I gotta say all your other functions are amazing. If you develop your own amazing one then you wouldn’t really have to charge us for it. I get that this way is easier, but no one is actually going to buy it unfortunately. They already payed a decent amount for the app. Great idea to have a photo mode, but sadly poor execution..Magic SpencerVersion: 5.5.2

New update made it harder to use, but is still qualityI had used this calculator often due to its drastic improvements over purchasable individual calculators, to the point where this has become my go-to calculator. However, the new update has changed the layout in such a degree that I can no longer reliably use the graphing function and now have to use a third party method if I want q computer to quickly generate graphs for equations. The ability to scroll nicely between your previous answers is a godsend, including the ability to copy and paste, which is a massive improvement over any other calculator I have seen previously. I rarely if ever use the step-by-step function, but if I am feeling rather lazy I will use the algebraic solver which surprisingly works very well. I will continue to use this calculator as my main source of computations, but the graphing function needs significantly changed..Xxl JuggernautStyle lxXVersion: 5.6.3

Great calculator, but ONE super annoying problemIt’s a great, feature filled scientific calculator, but they made the ridiculous decision to put the “options” button slightly overlapping the “0” button, resulting in accidentally opening the options frequently. It’s a bizarre decision, given that sliding the keyboard up a very small amount would solve the problem while only reducing the size of the output screen a negligible amount. Or they could have it overlap any button that isn’t used in approximately 1/10 of every equation I enter. Or just put it in the lower corner of the display area. I feel like they essentially places it in the worst possible location, and it makes me not want to use an otherwise great app..BrubakerFanVersion: 4.7.3

Horrible updateThis new User Interface has destroyed the seamless experience that this calculator offered before. Key strokes have a lag which causes the calculator to miss the some of the keys that were pressed. The History list now requires you to press insert when you want to make changes in an equation you used before. I can’t even explain how much this update has made it difficult to continue using this calculator. Developers should be fired for trying to fix something that didn’t need to be fixed..PrinceWiXVersion: 5.6.2

Fantastic functionality (pardon the pun)This calculator does all kind of neat stuff. Without restating its functions (the app description does that well), I can say that as a scientist, engineer, and pilot, this calculator exceeds my very demanding expectations in so many ways. It makes beautiful graphs that are traceable and zoomable. It works with equations with ease, even complex ones. Calculus and statistics are no problem (again, pardon my pun) for this thing, too. I’d love it if it had a built in E6B, but other than that, it has everything! I totally recommend it to students, teachers, and professionals in STEM! Great work devs!.Bfcoats2Version: 4.8.3

New interface is crapI thought I was the only one who had a problem with the new interface, but it turns out that a lot of users also have the same problem. The interface of this calculator was what attracted me to it and made me buy it in spite of the fact that I had other paid-for calculator apps that are more expensive. Now the interface is horrible and time wasting. At least give the option of being able to switch to “classic” at will.Sunkanmi OyaleyeVersion: 5.6

Update ruined the app for meLike others have said— The upgrade made the numbers really small, and various buttons don’t work—I really noticed the buttons when I tried the conversion area. Almost nothing works there. The app is no longer intuitive. It’s like using an old scientific calculator that requires a teacher to use. When I checked out the “user manual” in the menu bar, I couldn’t find instructions for the converter. Disappointing to pay for something I use often and now doesn’t work for me..1stspringVersion: 5.5

Easy to Use and EfficientThe way this calculator allows you to enter calculation formulas in forward form (e.g., sin 45 instead of 45 sin; -1 instead of 1-), and how it understands notation shortcuts such as 4 pi = 4 times pi makes entering calculations much more efficient and much less error prone than traditional scientific calculators. You also see a scrolling display of your total calculation entry (instead of the display refreshing with each intermediate calculation value). This helps you to check that you entered a long calculation correctly. Highly recommended..Molee10Version: 5.1

Final calculator you’ll ever needAs a long time land surveyor who has worked in the engineering fields from electrical engineering to structural engineering to civil engineering this calculator has done it all for me. I have built highway bridges to miles of highway with this app. I have used it also to teach my kids geometry, trig, and algebra using it. The price is same as a casio fx-115es plus i use which u can use on state exams. Ive used every calculator out there from old hp48s to hp 35s to graphing calculators of all sorts. This one like i said is worth evry penny..Thisoldman1337Version: 5.6.3

New bugs but great updateThe new update has had me run into about 3 bugs that made me need to reset the app and there are also a few things that I can’t seem to properly hit as the buttons are now much smaller. Maybe put the button sizes back and add some more slides for the buttons? I’ve had this app for 4 years now, paid for it, and have used it a ton since. I know you guys worked hard on this but these issues are not what I paid for for this app..Darkhorse97Version: 5.5

IntuitiveThis thing can do next to everything. I have an upgraded version and it is a lifesaver. This thing gave me a way to check my work in Linear Algebra, Physics, Calculus 1 & 2, EE classes and more. Its mobile user interface far surpasses desmos’s and can do far more. The navigation takes a second to get used to, but the amount of functions are totally worth it. Must have for engineers, and even better on iPad.Ginger_X_XVersion: 5.9.6

Math Has Been ConqueredAs a dyslexic, I also have issues doing math in my head so of course I need a calculator for speed and accuracy. However, THIS is my calculator of choice out of the hundreds I have bought and tried. It covers everything from basic to advanced needs. and is even bundled with a great unit converter. They’ve also listened to my suggestion and added in number groupings. Lovely update, it also introduced tons of amazing new features!.Will FrancisVersion: 5.5.4

I don’t like the new interfaceAfter the update all UI changed and I do not like this. The previous version’s interface was like calculator # and I paid my money for that design. But now I have to stick with this one... If I want to use the previous design, do I have to purchase calculator# or use it with ads? Why couldn’t you make new app for this interface and keep the old one for people who already purchased if you are seeking for new customers? This’s ridiculous. Ngl it is a good calculator tho. I just don’t like this change..Joe1192Version: 5.5.9

Works Great!Pretty incredible for the price, works for several simple and complex types of functions intuitively and easily. I haven't used one of the expensive TI graphing/scientific calculators in many years (before the invention of the smartphone hahaha), but unless those do a specific function 100x's more efficiently that I have to do 100+ times daily, I can't justify adding a clunky piece of hardware that I can just simply do with my phone. Highly recommended!!!.MR65375364353264Version: 4.6

Love this appHave been an avid user since high school, and it's served me well through MIT and beyond. One suggestion regarding the latest update though. I'd reccommend some sort of color change for the whole button when you press it. On the light and dark themes, only the number changes, and this is impossible to see when you're pressing the button, so it's hard to get that instant feedback. Silver theme fixes this, though, so no real complaints here! Keep doing what you're doing fellas. It's working!.Polevata314Version: 5.6.2

Not a fan of the interfaceI’ve had this calculator app for several years and have loved. So far, I like most of the new functionality of the updated version, but the new interface is not so great. The keys are small Anne unresponsive. Pulling up previous calculations is not as intuitive as before. If it stays like this, I will definitely be looking for a new calculator app soon. The unresponsiveness of the keys is making this app unreliable and unusable. Please fix it soon..HikerPaulVersion: 5.5.1

Greatest Scientific Calculator on App StoreThe user interface is as good as it’s going to get for a digital scientific calculator better than most analog ones. I’m giving 5 stars because it excels at providing smooth input of operations; however I’ve yet to use many other features, I still think it’s a very solid app. I’ve never written a review on the App Store before, alas here it is. This is the best bang for your buck calculator, I’m a student, for what it’s worth..Diego20190120761Version: 5.6.3

What I’ve been looking for.This calculator is well worth its money. It has so many useful features that it’s insane how little this costs. Also, this calculator has the one feature I’ve been looking for, and that is to be able to input a variable anywhere into an equation and it will solve instead of the long process of rearranging the equation to solve it. Also has a great converter, and other useful modes..TheDiamondSunsetVersion: 5.1

Why did they change so muchI just saw the new look for the app yesterday. While I like the sleek look of the new calculator, the bars under the buttons are confusing and look bad, and need to have an option to turn them off. Also, I appreciated having a drop down for the conversions, instead of having to type them in, because now I don’t know what the calculator can convert. If these 2 things were added, this would be a 5 star calculator..Batkid9520Version: 5.5.1

Conversions out of calc app?I have enjoyed using this app. Now I enjoy it less due to your making the conversions aspect be on its own app. Why did you do this? It’s very inconvenient. If you’re just trying to create extra income you could at least make it a paid addition to the original app so I don’t have to use two separate apps to do what was possible with one..The1amanVersion: 5.5.1

Better than my $200 calculatorTotally worth the money. I will be using this my whole life. The new step by step solutions is awesome. I will have to get used to the new UI, but it looks great. The amount of effort put into this calculator from parsing, calculation, display, to ideas is just perfect. I love that I get exact answers to problems that my $200 calculator can only approximate. Well done developers, seriously a work of art..Tater600Version: 5.5

Both editions are amazingStarted out with the free Calculator # and later upgraded to the full version. Both calculators are powerhouses of phone apps that are a must have for anyone who ever needs any kind of calculator on their device. The apps are very intuitive and extremely well made, and support a wide array of options making life so much easier. Highly recommend to everyone.._FonziiVersion: 5.1

Best Calculator Watch on App Store!!!!!Does the basic things like simple operations and complicated things like graphic functions. It’s easy to use and has a nice dark theme, which I use. My only suggestion is to create an Apple Watch app of this calculator: that can do quick and simple operations. Hope you guys can continues to support this app and make enhancements to it because it feels sluggish at times..Hp561Version: 4.6.2

Upgrade from best to worstThe latest upgrade is a drastic decline in a quality calculator. Tap a number and it is not entered in to the formula. Instead, I have to hold a number in order for it to be included in the formula, most of the time. There seems to be new, and potentially exciting features, but the low functionality of entering numbers/symbols does not encourage me to explore them. Don’t use this calculator..Bigfoot.470Version: 5.5.8

Amazing calculator!This calculator is purely amazing. It has more operators then you will ever need, it’s quite accurate, and can prove to be very useful in a large variety of situations! Unlike all those other calculators, which are severely limited compared to this. I’ve trusted this calculator for a year or two now and it continues to serve me well to this day. (Thank you for bringing back the carbon layout! You guys are awesome!).AmberMetVersion: 5.5.2

Love this app!Can there be an update to the numbers on the screen? I like how I can type a ton of numbers, but instead of them going on forever in one line I think it would be better if they could wrap around on the screen and continue underneath the first line of numbers to the second line and so on!.Kadeorade5Version: 5.5

No negative button is annoying at timesThe fact that there is no negative button, while most of the time is not a big deal, it is quite annoying when I have a negative number squared within an equation. Having to put parenthesis around the negative number and the exponent on the outside fix, but the negative button is standard on every other calculator I have used, why the heck they would leave this out just annoys me. Fix this and it’s a perfect 5 stars..Happy in KCVersion: 4.8.3

Great calculator!Some suggestions: Keys on the main keyboard page (flat, dark mode) have gray backgrounds witch is great, but what about the other extended keyboard pages?! Did the designers forget them?! Zero key is one of the most used keys on most calculators and so the zero key is one of the largest. But here, it’s not only the same size, but also is just above the menu key and you should be careful to not touch the menu key by mistake. The menu bar color (blue) is not matched with the overall dark design. Maybe a gray and darker color would be great. Even an auto hide option for menu bar would be awesome. Thanks for this great and powerful calculator!.Alireza A.Version: 5.8.7

Very good!You have a choice. Either buy a calculator for $80-$100+ or some chump change for a comprehensive calculator. This team has created a largely inclusive app for just about any equation you could need. It's worth it. Plus too, if you mess up, you can back space to correct it. You can do that with the stock calculator iPhone has. You have to start over....Jesus' ServentVersion: 4.6

I love itI’m studying mechanical engineering at college and and I’ve sought an app like this because I needed it very much! Right now I find it and i’m so happy and I upgraded really fast. I’m really appreciate for it. and I have a request for maker of this app, that is I’d like to add Persian (farsi) language to this app because there are so many people here that they need it as my friend and my teachers too. so please add it❤️.SinaRSRVersion: 4.8.3

Change it backI hate to be one of those people who only rates something when they’re dissatisfied actually I think I gave this calculator a great rating when I paid for it. Changes were made a few weeks ago and now it doesn’t work all the time. A calculator needs to work all the time because I don’t have a need for two calculators..Fabricator75Version: 5.5.7

Great app but one flawThe modulus operator does not give you the correct result when you have a negative number as the first operand. For instance right now if you do -5 mod 4 you will get -1 which is incorrect. The correct answer is 3. Other than that this app has been great. Used I use an iPad Pro for all my note taking and it so nice to just swipe from the right and boom there’s my calculator. Best calculator app other than this modulus issue..Kris - NASAVersion: 4.8.3

Hands down best Calculator app out there!Thank you for the iPhone X update! Also if anyone out there is looking for a good scientific calculator, you found it. Look no further, this is the best. Srsly, I tried them all, this is THE BEST. (Wolfram alpha and Desmos can do some neat things, but this is the easiest to use, most universal gadget you can find.) Just buy it, it's like half the price of a coffee nowadays....IBest.Version: 4.7

Wonderful math calculator, with history!This math app performs all math functions efficiently and accurately. Easy and logical entry formats. I am most pleased with two features: (1) entries in logical notation and (2) unlimited history of entries and results. Just scroll back to see each entry and resultant calculations, with revisions possible at any point in a long string. Thanks!.Don ArchitectVersion: 5.8.1

I love how active the development and evolution of this app isI do not need a calculator on my phone or iPad regularly but I find that when I do need something more a bit robust than the built in calculator on my phone or need an app at all as one is not included on the iPad that this is one of the first I turn to. It makes sense and is well designed..JkrfnofcbkpgvVersion: 5.5.3

The new UI version no Torque convert?After updated to the newest version I just realized it is getting difficult to do the units convert, before we could just select unit to convert right now we have to actually type the units to do it, and do we missing the torque convert? I couldn’t find the unit with torque..DshjfrVersion: 5.5.2

UI is a bit strange but it works well enoughIve been using this app for few years now and still cannot get used to the UI - color scheme, buttons look like toy story, general layout of functionality, etc. If you set this aside it is a nice app with lots of features..NpotereykoVersion: 5.6.2

Very good and feature-complete, with one star offThe star off is for the (undeclared in the marketing) in-app purchase necessary to use a feature, namely the OCR/handwriting recognition. The charge isn’t even the issue, services cost money, but it shouldn’t be on potential customers to find this out after getting the paid app..AdamajreynoldsVersion: 5.9

Infinity calculatorExcellent. Very useful. Comes in handy so many times..TinoCosVersion: 5.9

CalculatorExcellent calculator.Pi25Version: 5.9

Very comprehensiveSmarter than I am.Zfsryvh123Version: 5.8.7

This calculator is actually good, the results are accurateSomebody just mentioned that the result was inaccurate. First, for the trigonometry part it is accurate since it is using the radian unit, not degree unit. I think all results are accurate as far as I tested it. Also, somebody complained issues like when he inputed 1/1.31, the result had been turned into 100/131, that is because you use the fraction mode, not decimal mode. Don’t give wrong reviews due to your lack of knowledge..DonspacesVersion: 5.8.3

Great jobGreat job.AwuleyVersion: 5.6.6

Latest upgrade is a big downgradeAnother example of breaking a successful app for no apparent reason. If it’s not broken why “fix”it?.Mag8088Version: 5.5

OkGenerally ok. But I’ll be damned if I can easily find memory & recall buttons. Why don’t they have clear & dedicated buttons for them? I’d rate it higher if I wasn’t spending so much time staring at the buttons to find what I want..CdnRedBeardVersion: 5.6.3

GoodThough like it, the new screen is not user friendly. Moreover, the memory keys can not be found easily..Abdi.airVersion: 5.5.8

Bad OpticsThe new design is not good to use, the old design was much, much better, please change it..JayC0401Version: 5.5

The updated version is excellentThe later version is outstanding. Lots of functions that go beyond the needs of any individual. Great effort..LunaSenecaVersion: 5.5

The update made the convertor badBefore the update the converter was easy to use but now it just hard since it’s not intuitive..Dan414243Version: 5.5

Really bad new layoutThis version really sucks can’t do conversions anymore Need the old version back.GuiyghhuijVersion: 5.5

Best calculatorI'm so glad I bought this. Good for simple calculator, matrix algebra, equations solving, even simple integral and derivatives. Bought this 4 years ago, still use it today.ZZzFalaecozZzVersion: 5.2

Tried five calculator apps; this is the one I’ll useBought four other paid calculator apps before finding this one, including the two more-expensive apps that seem to top most reviews / ratings of iPhone / iPad calculator apps. More than the others, Calculator Infinity meets needs for a calculator that works seamlessly across disciplines; engineering, statistics and accounting (scientific too, not my need). Especially like that it clearly displays algebraic equations as they are entered - great for avoiding errors and for showing others what’s going on - and user functions are so easy to create and use. As a calculator that does absolutely everything it takes a bit of practice to use, and it’s unit conversion feature is more kludgy than others. However the other calculator apps purchased will likely be deleted from my devices soon; this one does it all well..Showbear_hdVersion: 5.2

GoodIt’s pretty great, but a vital function is missing or maybe I can’t find it. You aren’t able to input previous results (from more than one calculation prior) into a new calculation, no way to paste numbers either. One review says they can’t calculate fractions but you can indeed convert decimals to fractions by pressing the bottom right button on the main screen.GabiKat🤖Version: 5.2

Great, only minor things missingDefinitely the best calculator app I’ve come across, only wish that it had fractions instead of the division operator and eventually the possibility to change the app icon....Lucasdemuynck010Version: 5.1

Good ApplicationThis is arguably one of the best calculators on the App Store, however the interface could be made to be more approachable..Mark0nusVersion: 5.1

The only one you need.I found a bug and they fix it. Very easy to use and include a huge converter. Very complete, I recommend. 10/10!.GentleManAmericaVersion: 5.1

The best calculator app and technical support money can buyI was in need of a calculator that could solve engineering power supply resistor values and stumbled on this app. My questions to technical support were answered within an hour and explained in detail very well. I highly recommend this calculator..Mike_r44Version: 5.0

Better than Apple's for sure.Some asthetic improvements would be nice. Can't find randians for trigonometric functions though..Kindeep SinghVersion: 4.8.3

Super Calculator but Should be UniversalProbably the best calculator app I’ve seen for the iPad. However, this should be a universal app! Paying for two instances of the app is a. It greedy IMO. I’d give it a 5 star otherwise..MimicLobsterVersion: 4.8.3

Perfect for a science studentGreat calculator!!!.LaurahallsaVersion: 4.7.3

Nice appThis is a very good app, with a steep learning curve. In casual use it seems to be free of bugs and other annoyances..JhsisVersion: 4.7.3

Awesome!A very good app!.CastorattentifVersion: 4.7.3

Very useful!Very well payed out and incredibly useful!.Jordan_soundVersion: 4.6.2

Almost PerfectGreat Calculator, well thought through, the only issue is selecting the conversion units needs some stabilization . But all in all a great app. I would recommend it to anyone.Greg of BCVersion: 4.7

Great! A+Great calculator for algebra don’t know about the others functions as I only use it for algebra but it certainly was worth the seven dollars it cost me works great for any equations and the like A+++++.Elverne BaumanVersion: 4.6.2

Simply the best scientific calculatorI have used many scientific calculators on the apple market. This is by the far "The Best" scientific calculator on the Apple market. This scientific calculator application has many functions and features from basic, to complex calculations. Excellent for algebra, calculus, exponential equations, factorial and many more. I use this scientific calculator application frequently from every day uses to problematic equations. The only issue Is the help feature. The help is very vague on all key functions. That's it..ShadowWalkerCAVersion: 4.6

Great, but why 50 MB in size !?Pretty neat, useful ans has tons of functionalities. But why in the world is this app so large ( ~50 MB) ? Should be much much leaner and snappy. Hello devs??.CorbeauDouzeVersion: 4.6

Finally the perfect calculator!I finally found the perfect calculator for my needs! It does everything I need! I really like the tap engine function too, which makes it more "real" on touch. Only thing that is annoying is the blue button on the down left corner that goes over the "zero"... I would love to remove it to have a cleaner view..AllibbiVersion: 4.6

GreatBest calculator app I have ever used. Great functionality and usability. For me, no app has been able to replace my actual calculator, but this one comes close..CriscoMcNastyVersion: 4.4

Strong AppIt is a good calculator.LilDagnametVersion: 4.5

Smart calculatorThis calculator is amazing. Unfortunately, university has a no smart phone policy which means I can not use this calculator app during tests. So i still have to have a traditional scientific calculator. If your company has any suggestions or remedies that might help persuade the university policies to change this unfortunate circumstance, I encourage you in doing so..TaxbitVersion: 4.4

Really good!It is worth every penny I invested in it. It is a bit complicated at first but you will quickly be able to understand how it works. It has a mod of features. 10/10.PeetskiVersion: 4.3.1

Excellent calculator, excellent valueBest money spent on a calculator ever. Doesn't have some advanced functions (like plotting) but considering the price, I couldn't ask for more. Very stable with no bugs so far..SumFallowVersion: 4.3.1

Excellent calculator !Been using It for months now. Replacement for a sci/eng calc (48s emulator). Does the job, lots of functions, friendlier interface. Just had to get used to non-RPN data entry....Yanick, en françaisVersion: 4.3

Free International Money Transfer 💸Enjoy high maximum transfers into more than 20 currencies while saving up to 90% over local banks! The cheap, fast way to send money abroad. Free transfer up to 500 USD!AdvertorialVersion: 6.0

Calculator ∞ Negative Reviews

Strange user interfaceThis was my most used application until the August 28 update. A graphic interface for a calculator should look like a calculator, not just a bunch of numbers and functions thrown on the screen. The layout is awkward to say the list. This is very disappointing and a perfect example of what happens when you try to improve what was already great. Follow up, September 12, 2020: I took the developer's advice and gave the update a chance. I am now twice as disappointed. I have to wonder if the developers have realized that this "new and improved" revision has taken this application from a 4+ star review ranking to a 2 star. Who ever designed this new UI needs to take a vacation. This is not going to attract new and young users. In addition to the awful user interface, my screen does not display any menu, options or help screen. The keys are too small; unless your fingers are the size of a pencil, data entry is quite unpredictable and frustrating. I have no way of accessing any of the "new features" of the application. Perhaps this is a hardware compatibility issue. I am using a third generation iPad with IOS 10.3.3 which according to the developer is compatible with the app. All I can confirm is that I purchased an application that has been revised without notice to a point where it no longer resembles what I paid for and worst of all, may be incompatible with my iPad..Carnack13Version: 5.5.3

Used to be much betterThis calculator was much better in the prior version and I would have given the previous version four stars. The new interface has drastically increased my calculation time. First, the up arrow used to accurately scroll through historical calculations that could then be edited in place. This no longer happens. Also, editing a historical equation requires you to now “insert” it, which adds keystrokes and can cause errors if you already have typed something in. Second, the unit conversion has the start of something good but still lags way behind the previous version, which was a bit clunky as well. It needs to have the ability to drop down available conversions “to” once the “from” is selected and it needs to get back the ability to switch the from and to positions. And, it would be nice to have favorites back for rapid input. Finally, the calculation lines are more crowded than before making it more difficult to read results. The new interface has some advantages and it is nice when things get refreshed, but this was a premature rollout and until the above are fixed I am, unfortunately, in the market for a new go-to calculator..DnacocoVersion: 5.5.2

Used to Love ItI used to love this calculator but the UI is terrible after the most recent upgrade. I got a response from the developer. Doesn’t look he’s going to give those of us who paid for this app the GUI we liked. All he does is accuse us of not accepting change. He also thinks the old interface is out of date which is totally wrong, and yea, I’m the Director of Software Development for a $4B company so I know a thing or two about software and the human interface. Additionally, he thinks the new interface will attract new customers but fails to recognize that the rapidly growing list of one and two star reviews will blow that theory right out of the water. I guess his marketing expertise is in line with his human interface expertise..Ewm2Version: 5.5

New update ruined itThis USED to be the best calculator on the App Store but the latest update has much to my great disappointment completely ruined it. I get so many glitches and errors that just trying to make it work is a struggle half the time along with its horribly impractical ui this app is just frankly more struggle than its worth. If the devs would simply restore it to the previous version before the august update then my rating would instantly go to five stars but as it stands I must warn you as someone who has had this app for close to six years now, its frankly no longer any good and I like many others will surely be looking for alternatives..FrankNSenseVersion: 5.5.5

Horrible User InterfaceWhy would you change the user interface of a calculator? It’s a calculator. Every single change you introduced made the user experience worse. Conversions GUI should be used in schools to demonstrate how bad a design could be. One single tiny line for conversions (with 7 decimal digits for temperature 😂) with a huge empty white space above it, and a “0” in a wrong space. I’m not a lumberjack, I play piano, but I can cover four keys with my finger. Total failure. Two stars is a gift to motivate you to fix this mess..DoesEveryoneHaveToHave_a_NickVersion: 5.8.1

MöbiusThe new revised calculator is pitiful The shift key opens up other nice functions. It doesn’t allow for easy copying and pasting of results or equations that led to those results. Obviously, for people who really know how to do serious programming, Excel is almost infinitely better for calculating anything with the bonus of being able to print just about anything you like. I’ve written single cells with about 7 nested if statements using Excel. For a carry around calculator that isn’t programmable, this one is great and well worth the $4.99 or whatever it costs close to the aforementioned amount..Lsume82Version: 5.5.8

I have Pro. Stop it with the adsI was trying to use the photo function and repeatedly got the ad window. On top of that the photo function didn’t complete the analysis and left me with a white screen. You need to realize that calc apps require an investment of time spent learning how to use features. If I keep getting ads after paying for this product then I will simply delete it instead of wasting time trying to use a product that gets in way..JtjrhdhruVersion: 5.8.1

Calculator updated and now I cannot subtract?A couple of days ago, presumably after an app update, the calculator stopped being able to subtract when subtracting from a previous result. So let’s suppose I type “4 x 4 =”. I get a result of 16. Then let’s say I want to subtract 6 from my result. So I type “Ans - 6 =”. The result is get is “Done”. Literally! I should get a result of 10, but instead I get the word “Done”. Something is very wrong with this calculator and it’s really a problem that needs to be fixed ASAP, or you may lose a lot of customers who rely on the simple mathematical concept of basic subtraction..Db7jVersion: 5.5.7

Just get Emu50G insteadI come from a background in game programming & advanced math. I also own a HP 48G originally purchased back in the early 90s & that (RPN) has a steep but worthwhile learning curve. Maybe because I’ve developed user interfaces for people I have an expectation of usability above all else. The mark of that is when you don’t need a tutorial for basic functionality, only steps beyond that. *** As such, this app is unusable.*** There’s a problem when even attempting to calculate basic Trig is made complicated. This app’s approach is nebulous & opaque. Sin 90 calculates WRONG. I don’t know what this app designer’s aversion to intuitive design is, but it renders his app useless. If you care about your time & want a battle proven calculator that countless professional engineers & mathematicians rely on, just get Emu50G instead & save yourself the headaches this app will induce. You’ll thank me later..NinjaRunningWildVersion: 5.8.1

Disappointed with the UpgradeI loved the app before the upgrade. Everything was legible and made sense intuitively. However, this upgrade took away from those key features. Everything got smaller and it prompts me to use a scientific feature I have no need for in the basic everyday calculation. However, they keep my favorite feature; calculation history and for that reason I am rating it two stars. Sometimes it’s better just to keep things simple and sweet..The Super SoldierVersion: 5.5

Don’t like the new interfaceI am very disappointed with the latest update. I’m struggling with conversions. I’ve had to purchase another app to help me with conversions. 😞😞😞.DennisCaronVersion: 5.5.2

THIS APP DOESN’T WORK FOR TRIGONOMETRYI just started my Trigonometry unit in school (Grade 11) and everyone who’s using apps and google scientific calculator has been getting completely wrong answers and our process is correct, my teacher even tried using an app and the answers coming from most scientific calculator apps have been unreliable. My teacher tried the scientific calculator in Calculator.net and it’s working well. If you have a math test or homework or your calculating anything important DO NOT USE THIS APP, when I calculated something where the answer should’ve been (57) it got 0.66 the answers are way off. I payed 6$ for the premium and I WANT A REFUND!.HfghbhbVersion: 5.6.6

Not worth the moneyUI is confusing, and writing recondition not good. I can’t even import photos, only take pictures..!@34r%6&*()c0pjVersion: 5.6.5

What happened to INV to create a neg number?I used to love this calculator until the new update where I can’t even find out how to enter a negative number. I am sure it is hidden somewhere but the user friendly aspect tanked with the new update. Inverting the sign should be on the main screen and not buried. It’s ridiculous!!.Dale_4SVersion: 5.6.1

Disappointing new interfaceVery confusing and not intuitive. Conversions are a nightmare. Please revert back to old version..QwertypcVersion: 5.6.1

Old version much betterThe new version is not worth the money. The screen is not intuitive and the summary of buttons on the Home Screen is not useful. Fortunately I can still access the free version (which was amazing) and will deal with the advertisements..Struct EngineerVersion: 5.6.1

Horrible...Was happy with the free version but the paid version is very hard to handle because of a very different and not very intuitive interface. Regret buying it....GrumpybearsVersion: 5.6

Problem with using the appHi There is something wrong after I update the latest version on my iPod touch. Before it was good, but now the interface doesn’t appear after I open the app. Please check Thx..Mickey BacketVersion: 5.5.8

Changed the look, changed the feelI bought this fir the look a year ago and they changed everything all of the sudden :-(.Moi256894245688Version: 5.5.4

Roll backAppreciate the effort but the app was very well built and didnt need a revamp. Currently searching for another alternative as the current version is unusable. Hopeful you reconsider and roll back to the older version.NaierFVersion: 5.5.2

Please allow choice between old/new layoutI now find it much harder to use. And the converter is not usable. Would it be possible to allow users to keep the old interface and converter, please? I appreciated the bigger buttons (text) and converter much more before. Thank you for your consideration..Teez333Version: 5.5.1

New not betterNew layout is hard to see, I need to focus hard to see what I’m tapping on. I appreciate the effort to improve your app, if I was in university still it would be an awesome upgrade, but for general day to day use, this update hurts. The simple mode is too simple. I rely upon the history mode, making multiple calculations, and then going over them all at once to check for mistakes. The full mode has a tiny tiny number pad. It’s hard to use with my big thumbs, and that’s on the big iPhone 11. I don’t need the alphabet all the time, or a scrolling slider to pick decimal over binary. I need a big number pad, a shift button for alternate keys I use on occasion, and for sure a nice long history function to scroll thru for checking. This app has been a hands down 5/5 for so long, was worth every penny I spent on it, now I need to find a new calculator. If you are going to radically change the layout, give people the option the first time it starts back up to pick the new layout or keep the old. Especially for a paid app..KyrillosarVersion: 5.5.1

EngineerThe update is very bad! It’s not user friendly. The conversion feature is totally useless now. Bring back the old version. I will have to look for a new converter / calculator app now 😑.Dax 20Version: 5.5

ConverterThe converter is better before So i could find a other one!!.ElbeafVersion: 5.5

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