HP 12c Financial Calculator Customer Service

HP 12c Financial Calculator Positive Reviews

Thank you!! - looks great on iPad todayUpdate 4/30: Thank you for taking time to fix the iPad layout after the most recent update. I haven’t fully gone through the app (the only reason for 4 stars instead of 5), but this looks GREAT! Returned the usable layout, and still delivering improved graphics, etc. Love it!!! Thank you for being so responsive! …………………….. …………. From earlier in April 2025: I have loved using this app for 10 to 15 years on both my iPad and iPhone. I use the app a few dozen times per day… mostly on my iPad at my desk. Today’s update messed up the interface on the iPad… buttons look oddly spaced, etc. I hope that gets fixed soon!!!! Yesterday i would have given 4 stars. Today i give 2 stars. I acknowledge it looks like a lot of work was done and it looks crisper, but it no longer looks/feels like a 12c on an iPad..SjcurleyVersion: 3.1.0

Great upgrade!Version 3.0 took this from an adequate 12c emulator to a great one! Portrait orientation now has all 12c buttons available, and the interface looks cleaner. Also dealt with annoying problem where some controls were very close to area on screen that activates Siri I really don’t understand the reviews complaining about the layout. When rotated to landscape it’s IDENTICAL to a ‘real’ 12c, and in portrait there are now more functions available. Yeah, the iPad version is different, but I prefer it to a phone sized screen floating inside an iPad sized app.MC94040Version: 3.1.0

Can’t figure out how to change the comma to a floating decimal point since there is no off button.Much easier to have the functionality on my phone instead of carrying the calculator.MuzzleflashVersion: 3.1.0

ISSUE RESOLVED 😊 (COMMA WHERE DECIMAL PT SHOULD BE & VICE VERSA)UPDATE: DEVELOPER RESPONDED TO MY REVIEW W INFO ABOUT HOW TO CHANGE THIS IN THE APP SETTINGS. LOVE THE APP AND VERY HAPPY TO GET A PERSONAL RESPONSE TO MY PREVIOUS REVIEW! I just opened my HP12c financial calculator app and I have commas where the decimal point should be & vice versa. I checked my account settings and it still correctly shows my region as the US. Is this a glitch that the developer can correct or is there a way for me to fix it in my app? On an ordinary day, I rate this app as 5 STARS. Today, I’d give it 2 stars… but I’ll be happy again when this glitch is corrected..ShaniebelleVersion: 3.1.0

Fixed! Happy!When the new update came out (3.0), I could not read my calculator correctly as I use a larger font on my phone. I wrote to app developer and said I wasn't happy. They fixed the problem w/an update (3.1) and now it works as great as it always has! Thank you to the developer for the quick response/fix. I use it daily, so it was a big deal to me to have it work. I appreciate your work :).McFeitVersion: 3.1.0

After a False Start, My HP 12C is Back, and Better!Correcting the major UI and usability flaws of the previous build, my favorite calculator is finally back. Thanks to the developers for responding quickly to user feedback and restoring the appearance and functionality of the app across iOS devices..MichaelsjonesVersion: 3.1.0

Update 3.1 updated reviewThe developer has fixed the interface issues presented in ver. 3.0 - as an hp 12C user from when the physical version was released in the 1981, I can recommend this implementation on the iPad - I have updated my prior review to reflect the updated interface in ver. 3.1.0..Tony_from_NYVersion: 3.1.0

New LayoutI wrote: HP redesigned the layout. I wish there is a legacy option to use the old layout. I like it a lot better. I reset the calculator, which restored the old layout. I love the calculator again. Apparently my problem was user error..RufusJLVersion: 3.1.0

Step back from beforePlease revert the graphics to the old style, was much more realistic, like the 15c app still has... I had a 5 star review before, ignoring the previous iPad portrait glitch with the numbers outside the display, but the new "modernization" completely ignores the classic look and feel of the calculator we grew up with....ETMacVersion: 3.1.0

Platinum version updateWhere is the update to the platinum version of the 12 C?.O'HippoVersion: 3.1.0

Developer fixed the app for iPadPleased that the developer fixed the format issues. App screen looks much better and works well..Disappointed with updated AppVersion: 3.1.0

The only calculator you should - haveMy first 12C was a requirement for a finance class. I have owned the same 12C since 1997. Yes, I am dated. BUT- This recent upgrade makes the App just infinitely better. Try it..NnkapurVersion: 3.1.0

Getting there. PLEASE READ DEVELOPERSThis latest update is great. I utilize this App EVERYDAY on my iPad. It’s always open, and I am always using it. I am extremely happy that update the layout to again make it usable. CAN YOU PLEASE make the button sensitivity back to what it was? I am not having to click the buttons 2 or 3 times to get it to actually register. Again THANK YOU for getting the display right. PLEASE get the buttons back and I will be happy to write a 5 star review. Again I have used this app for years!! It’s currently good, please get it back to PERFECT.AZAdamkh2Version: 3.1.0

3.1.0 version has solved the layout problemThank you for fixing the layout!! Very good again!!.Aalen2atlVersion: 3.1.0

Love thisI love the app and the updated version with a vertical format. Thanks for updating the iPad version to better fit the screen..DarrinjaszVersion: 3.1.0

Why did you change the looks?Is so unpractical to have the buttons so far away from each other, I hope there is a way to switch it back..Gabe the accountantVersion: 3.1.0

Had a hp12C for the last 40 years; still great with the upgrades.All is good..MumbleroneVersion: 3.1.0

Mortgage necessityThis app can calculate compound interest. If you have a mortgage, you need this..NoneatalleverneverVersion: 3.1.0

3.0.1 version updateWorks well.59.travelerVersion: 3.1.0

One flaw…Downloaded this about 8 years ago and love it. Being an app it has outlasted my physical version where the markings wore off the buttons and the some buttons stopped working because of thousands of key presses. Also I almost always have it even when I forget my physical calculator, I almost always have my phone. Some people are complaining they didn’t get all the features, but I thing they just need to rotate the device to landscape where it switches modes to expose them all. My one complaint is that since I had a recent iOS upgrade on my iPad now the digital display is above the window. Still works, just awkward, and annoying. Doesn’t happen on my iPhone just on the iPad..Scooter12543Version: 2.3.4

Keeping the 12C aliveThis app is great thanks for keeping the 12C alive and well!.KirkeertwVersion: 3.1.0

HP 12C, fully functional or not?!I had this app--or one exactly like it--three or four years ago. It was exactly like an HP 12C in every respect. But then I had to restore everything onto a new iPhone, and all of the financial functionality disappeared. I was left with an, essentially, four function calculator. So I wonder if this is just a technical glitch and the guy who wrote the program is sick/deceased and is not able to read these reviews? That is, maybe he's not aware of the problem. Or maybe he got sued by Hewlett-Packard? But there's something funny going on here for sure. Erase that! I have found that the fully functional HP 12 C appears when you turn your iPhone sideways. Portrait, you have merely a four function calculator basically. But go to landscape, you get the full function calculator that I had a couple of years ago! Sorry about that but it appears other people have experienced the same "lack of functionality.".LeesailVersion: 2.0.1

Great, But Why Not The Classic LookFor those of us who grew up using the 12C in business school, and later in business, this is a perfect app. The frustrating part so is that it does not look exactly like the one we've all used. The color is different, the font of the numbers is different, etc. There were two other knockoffs that did a terrific job which I used because they both looked exactly like the 12C physical calculator that I had and still use. But they disappeared from the App Store, and my assumption is that HP shut them down. I have no problem giving my money to HP instead of a knockoff. In fact I like to support companies who create great products, and HP created this original product. But I wish that they would provide an option in the Settings menu to view the original look of the physical calculator we've all used for the past 40 years. I'm not sure they appreciate how much of a badge it is to open up that app in a meeting and start using it – there is an enormous "Wow" factor – but that effect only works when the app looks exactly like the original physical calculator. In fact, it's HP's own app that looks like a knock off, that isn't quite the full original. Easy fix, HP. Make us happy to show off that we have this app, and let us inspire others to buy it from you when they see us use it. P.S. Props to HP for finally giving us the option to turn off those annoying clicks..Paul in NJVersion: 2.0.1

Click sound, and soon to be obsoleteUPDATE: Updated to 64 bit, and changed Key clicks to iOS default. Works fine now. UPDATE: I'm so glad I paid what was already marginally too much for this app, and it will become useless tomorrow. Thumbs down to HP! UPDATE: I'm changing my rating to 1 star until HP updates the app to 64-bit architecture. I use this app daily in my financial business (when my hardware 12C isn't handy) and I'm worried about losing access to this (expensive) app when iOS 11 rolls out. It seems that HP charged an arm and a leg for this app, then abandoned it. This app is true to the original EXCEPT for the key click sound! It's loud, slightly delayed from the actual button press, and basically a highly annoying sound. If I silence the phone, there is no feedback to let me know whether it registered a button press, and I'm likely to forget to turn the ringer back on when I'm done. Update this to a simple, unobtrusive click and I'll give it five stars. I still carry my real 12c everywhere. Edit: Just discovered you can turn off the clicks, but that doesn't solve the problem of no feedback, and the key vibrate is too long to be functional..Dtemple11Version: 2.1.2

Almost great!I had a knock off HP 12 C on my iPhone for years. With the recent update to iOS, it stopped working completely. Just added this app from HP. So far I love it. One small complaint is there is a shadow on the numbers on the output display. i.e. the font that is used in the outlook display was design to create a slight shadow effect. The resulting effect is that it makes the output slightly blurry. Most people probably won’t notice but as you age and numbers/letters aren’t quite as crisp, it becomes annoying. Not sure why HP decided to add the shadow effect but it would be nice if could be eliminated or at least turned off. Overall, a good job!.Ntb AtlantaVersion: 2.3.1

Invaluable business tool!One of the most useful apps ever! As someone who has used a 12C since it came out in 1981 I can honestly say I’d be lost without it. I can’t even use a regular calculator without RPN!! I started using the app version of the calculator as soon as it came out and it was a little clunky at first but for many years now, it’s been flawless, fast and obviously always with me. The latest refresh made it even better now that the functionality that I use is available is in portrait and landscape mode. Thanks for such an excellent user experience!.Jimmer P.Version: 3.0.0

Financial CalculatorI used the hp 12c for many years. I have now replaced the actual calculator with this app on both my iPad and iPhone. I leave the keyboard clicks on for my iPad but have turned them off to use my iPhone during meetings. The keyboard sounds are controlled in the general settings, and I have not experienced a problem with turning them on or off. In terms of functionality, I have not seen any differences between the app and the actual calculator. I primarily use those functions related to amortization schedules and the time value of money. It has worked very well for me..Allie101!!Version: 2.0.1

Great calculatorI've loved the 12C for years and love having it with me always. I tried the imitators and they didn't stand up. I love the familiarity of this app. Stick to the original. But the menu function that takes you you the manual has a feature that doesn't work--when you click on a chapter it takes you to the last page you had been reading. There is no way to use the chapters feature to get to a new chapter. Most in helpful. And no app support, just a link to their HP website. I expected more from HP..DavidSVersion: 2.0

Reverse PolishIf you’re looking for a great powerful calculator and you don’t mind learning reverse Polish notation, this is the best there is. Reverse Polish you enter the numbers before the operator. In algebraic you enter it as it comes. Examples. An algebraic you put in 3+5 = and the calculator shows 8. RPN, you enter “3 enter 5 enter + and also get 8. Won’t you get reverse Polish down, you can start to understand how to write a program on the HP 12c. I’ve been using this calculator since the 1980s when it first came out and there’s none better..BobBob BobBobVersion: 3.0.1

My Favorite Calculator Needs An UpdateHave used an HP 12C going back to 1983, so paying the high price for the app to use on my iPhone & iPad was worth it. Calculating home loans, ReFi and managing investments are all easiest in a 12C. This app needs to be updated to work with future Apple iOS releases. If HP lets this app to be dropped because it can't work on our devices they need to refund at least half of what they charged users for the app. My 30+ year old HP12C calculator works fine, my HP12C app should be just as reliable..SsquardVersion: 2.0.1

Hooray Updated and Better than EverAs a forever brain re-wired HP12C user from my days of taking the CFA exam I have preferred the elegant, if obtuse to some, input methods of the trusty 12C. I had assumed that Apple would eventually deprecate the app to the point that I couldn’t use the iPhone app … but to my wondering eyes would appear, not 8 tiny reindeer but an upgraded interface and graphics! Thank you developers, you’ve made me and I will bet thousands of people happy!!.BlankStairsVersion: 3.0.1

Key pressed visual feature broken!After years of using this app, I just now noticed that the keyboard buttons for “normal” and “pressed” are the same in landscape mode. In portrait mode, the button press does function. This is unlike the other calculators in the series— 15C and 12C Platinum, which feature visual button press. I truly hope this is merely an oversight, as these are my favorite apps to date! I am on iPhone X and iPad 2017..Mac.pro.userVersion: 2.3.4

Works great for my Mortgage teamWorks exactly and looks exactly as the real thing. Couldn't be happier! I've had it for over a year on my iPhone and iPad and I don't think I've carried my actual calculator since. My iPad makes the numbers bigger, easier to go even faster on it for quick house payments for clients. I would buy it if you're on the fence. Last one you'll have to buy!.Orangecrush34Version: 2.0.1

This update is what was neededThis update was desperately needed to bring me back to this app. I’ve got two, made in USA HP12Cs that I picked up from eBay and regularly use and this update puts iPhone on level ground with respect to the overall environment of the app. The cleanup and design of the portrait view makes it so I almost never need to rotate my phone to landscape - thank you, HP!.OldschoolskaterVersion: 3.0.0

Thanks HP for updating for iOS 11I have been using this calculator for years since I am hooked on RPN, and I was afraid that it was going to be neglected and made obsolete with the change to the 64 bit app requirement for iOS 11. Fortunately, HP stepped up and updated this app. In addition to the ability to run on iOS 11, they also made the key clicks quieter which is nice since they were obnoxiously loud before..AustinDanVersion: 2.1.2

Upgrade to iOS 17 broke itDisplay is not aligned after the upgrade. Please fix!.AxiominfinitaieVersion: 2.3.4

Perfect and irreplaceableWonderful App - the real thing, other than HP's old tactile feedback! Please update to conform with upcoming IOS..Loulou LepewVersion: 2.0.1

Exactly as it shouldI do not agree with the preceding negative comments. As someone that has used the physical 12C for years, this app is true to the original. Using this on the iPad2, I find the graphic quality is stellar. Since using RPN (reverse Polish notation) the first time, I found it logical and straightforward. If you're thinking of buying this app and you haven't used RPN before, you owe it to yourself to spend 5 minutes training yourself, you'll love it. Yes, there other free apps that purport to emulate the beloved operation of the HP 12C...and I've tried pretty much all of them, but this is the one to get. The other "free" apps are all lacking. Today I found this app on sale for $4.99 as a special for the upcoming school year (september) and grabbed it having watched the pricing for 6 months waiting for a price drop. Kudos to the designers in keeping this app true to the original, 5 stars for sure, 10 if I could!!.Saddle strumVersion: 2.0.1

Disappointing displayBig fan of HP 12 C but the display on iPhone X is poor. It does not adjust to the screen on landscape well. It feels artificial. I am sure HP could do much much better... pity as it feels very expensive and is hardly better than copy cat free versions..FH1964Version: 2.3.1

Love my 12cTrue to the original physical HP 12c. There are other RPN calculators for the iPhone, but I want my app to work just like my physical calculator. This does it. Love that I always have my 12c with me. If you don't know what RPN is, you probably won't like this. When I got my first HP calculator in 1976, it took 2 days to get used to the process. But I've never looked back. Much easier way to perform calculations than the standard calculator..PecosPeetVersion: 2.3.1

Love This App but.....I don't think this APP will run on iOS11. Added Nice to see the App updated for iOS11. Awesome calculator. I have the original HP12C in the office and the HP15C Limited at home..Andreas.caVersion: 2.3.1

Updated for iOS 11Finally updated with 64-bit support the day after iOS 11 came out! Thank you..The_Night_OwlVersion: 2.1.2

Thanks 64 bitThanks for 64 bit.DavidYYZVersion: 2.1.2

Great implementation, but ...This surely is the definitive iOS implementation of the HP12, but it needs an update or it will not work under iOS 11. For those planning to run iOS 11, do keep this in mind..CryolatheVersion: 2.0.1

HP12CI have been using various models of HP Calculators for years. They are by far, the best financial and general purpose calculators available on the planet - the best feature being RPN. Once you have used and mastered RPN you will not ever want to go back to basic methods. Accolades and a HUGE thank you to HP for this App. Finally, we have a superb calculator for the iPad and one that works brilliantly. Worth ever penny and has my highest recommendation..DavTinDanVersion: 2.0.1

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HP 12c Financial Calculator Negative Reviews

Needs Copy/PasteThis is a near-perfect 12C emulation but it falls short in one major way: it doesn't support copy/paste. Consider this scenario: you're sending an email or text on your phone and you need to do a calculation on a 12C. With a stand-alone calculator, you could read the results from the screen while typing on your phone. Once the 12C becomes an app, unless there's copy/paste, you have to toggle back and forth between the 12C and mail apps, introducing the potential for transcribing error. Other iPhone calculators let you tap on the display area to copy paste info. Not having this is a real oversight..Bob'sYerUncleVersion: 2.3.4

Need Updates!!!I use this financial calculator in my business. I was a mortgage loan officer for 14 years & I've been a Realtor for the last 7 years. This calculator came in handy when my clients wanted an idea of what their house payment would be. I started getting pop up notices with IOS 10 & now it won’t even open with IOS 11. I’m disappointed with HP that they would charge a high price for this app & then forget about it by not developing updates. There was one update a week ago for 64 Bit Version, otherwise, the last update before that was 5 YEARS ago!!! I still have my original HP 12C, but it’s not convenient to carry with all the time. Come On HP, Get With The Program!!!.Eagledancer56Version: 2.1.2

HP downhillI have used HP products for years but no more. The quality of their products have all gone downhill from printers to computers to even the HP12c. The physical ones display goes out in a year or two. And they haven't updated the app version for years despite ios11 being on the horizon. And the app has a premium price. Fix these things and I might consider coming back but until then--adios. Edit: Ok--they finally updated the app for 64 bit. But the physical HP12c calculator that I bought lasted a little over a year before the display went out. They should recall all of those lousy China made versions. HP used to represent quality but now they are inferior to any of the companies like asus..PseudAlienVersion: 2.1.2

Consistent With Expectations, However...Please get rid of the screen rotation. I don’t want to be forced to physically rotate my phone to landscape view in order to use the advanced financial features of this calculator. I don’t know why it displays a simplified calculator when I’m in portrait mode. If I wanted a simple calculator, I’d use the native iOS calculator included with my phone. I purchased this because I wanted something that replicated the 12C I physically own. Or better yet allow me to lock the landscape mode in the calculator settings. It looks like people have consistently left this comment for 4 years! I’m down grading my rating to 2 stars!.JSKimcheeVersion: 2.3.1

At least het the functions working!!! I want my money backFirst an old gripe. I had this up few years ago. It disappeared off my iPhone at the time I presume HP claimed their intellectual property and apple pulled it even though I paid for it!! That is atrocious. I paid for it do not touch it. I obviously wanted it more as I shelled out again $15 this time to HP to have the product. Now however I'm furious. How do I get refund for this faulty app? The calculator looks like the beloved 12c but the functions do not work!!! It gives error if you try to calculate interest of a stream of cash flows!! What the heck, the looks is not why I buy this. Get the formulas to work before you sell this!!! I want my money back!!!!.Eternalspring22Version: 2.0.1

Search again!!'There are a number of apps that emulate popular calculators. In particular HP, has two for it's renowned HP 12c financial calculator. The first app is problematic in that the description and graphic displays of the actual product app are grossly inaccurate. What you get after download and install is a generic calculator with none of the financial functionality or appearance of the physical HP product. A search on "HP 12c Platinum" however reveals a second HP app that both looks and works like the physical product. Also, the apps differ by only $2 in price. In my opinion, the first apps description should be updated or dropped all together from the store..TIGERPAWTRACKSVersion: 2.0.1

HP12C Do NOT PURCHASE!!! A waste of MoneyI have used an HP12C for years but when I purchased the HP12C app. and tried to use it, ONLY 1/2 of the Calculator Screen shows so you certainly can NOT figure mortgage payments nor any of the other calculators you want to accomplish. I would really appreciate it if someone can tell me what I am doing wrong____ when you first see the app, it shows the whole screen but when you go to use it, only 1/2 of the screen shows for you to use____and for “this” I had to pay almost $20 for this useless app!!! 😡😡😡.Realtor in SCVersion: 2.3.3

Hp 12C still not functioning on iPhone XHp 12C is still not functional on iPhone X other than as a four function simple calculator. Rotation for the financial functions. The developer is very remiss in not providing proper updates. I’m now carrying my original 12c device the avoidance of which was the reason I purchased the app in the first place. Apple should take all HP calculator products out of the store until these issues are fixed for those of us who have already paid for a non-functioning calculator app..DfgfgvVersion: 2.3.1

App owner needs to comply with update requirementsRecently received a notice that my other 12 C app was not compatible and would not be available with future upgrades. Purchased an expensive version reflecting Hp as the owner. Trusted that name. Not a month later I get another not compatible notice for the HP 12 C application supposedly owned by HP. Not sure why we keep getting not able to be used for future upgrades. Why don't they just take them off the offerings. Not pleased..RodgersplaceVersion: 2.0.1

IPhone 6 issuesI have had this app for a very long time. I recently purchased a new iPhone 6. Since the purchase of my phone the app definitely has a glitch. When I tilt my phone for landscape the app does not tilt along with it all the time. Once in a great while I can get The app to respond but it's very infrequent. I hope there is an update in the works to fix this….Rick4moneyVersion: 2.0.1

Stopped workingThe latest fix was for the HP12C app to fix rotation on the IPhone. It was working before the update but has since stopped rotating after the update. Found that I needed to fix rotation to landscape otherwise it’s just a money calculator since only 2 place decimal. Apple iPhone 6s now updated to IPhone X. Wife’s iPhone 8 upgraded from iPhone 6 works fine. Perplexed.Taxmaven18Version: 2.3.1

Great App but may not work after iOS 11I have used an HP12C since I was in college in the 1980's. I would give this a 5 Star rating, except for the fact that HP has never updated the app and as we close in on iOS 11, it will most likely quit working. What is most frustrating is this is one of the few apps I have ever paid for, and quite a bit at that. It's annoying that HP cannot keep it updated!!.MarkAtlantaVersion: 2.0.1

Poor supportYou would think if HP put their name on this and cared about their brand they would provide more support and relevant updates. Around any major ios ipdate - surprise! - planned obsolescence rears its head and functionality tanks. HP should be committed to excellence and not mediocrity. Having a non functional app and a 3 or lower star rating - is that part of your corporate values??? well HP you are not really winning customers or adding shine to your reputation....RevwizzleVersion: 2.3.1

Doesn't work...On the original version of ipad, does not show any functions beyond those of a simple calculator... please fix it, HP!.Worldtraveller56Version: 2.0.1

Only can see half the calculator - please fixLove the 12c and RPN entry. This display is only showing the right side of the calculator. That side you get works great. You don’t get the left side keys which do so much like NPV, IRR, exponents, percentage change, or even changing the number of decimals displayed (it is stuck at 2 decimal places. Until this is fixed and you get both sides, I don't recommend anyone buy it..Create nickname fartVersion: 2.3.4

Lazy on updatesShame! You destroy a brand by slacking off on updates. My phone is unstable because of this outdated app but I rely on the 12C daily. Update it or pull it, just don't further frustrate those who have been HP fans for years..AlphaBravoVersion: 2.0.1

Hp 12c - for the iPhoneWhat a rip-off! I have it on my iPad - it works great - on the iPhone it is a joke - where the hell are the functionality keys! This is nothing more than $2 calculator. Fix this !.27 year CRE veteranVersion: 2.0.1

HP 12CThis application is not a 12C it is just a simple calculator that you can download for free elsewhere. Product is not what is displayed..!&@$!Version: 2.0.1

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