LightSpectrum Pro Customer Service

LightSpectrum Pro Positive Reviews

MisspellingsSome old-fashioned people think that a quality program should have no misspellings. So think about ‘cancel’ and ‘wavelength’, please. Aren’t you embarrassed by these errors?.EnilohclytecaVersion: 4.2.1

Super cool!First, the fact that it does what normally takes thousands of dollars in tools is fantastic. No, it's probably not nearly as accurate as pro devices to do this work and having said that, since I don't have access to pro-grade tools I cannot say how the accuracy of this compares. But now I have a way to quantify the various values of light sources, and most helpfully, I can compare them objectively. This is certainly an app that every art, theatre lighting and photography student should own. Such a good learning tool to see how light sources and color interact. For homeowners this tool helps sort through the spec's of the multitude of light bulbs at the big box stores. I'm using this on an iPhone 6s with no problems. My only complaints: -The interface can get cluttered. Using it in landscape mode helps that quite a bit. In portrait mode, at least on my little phone, things get piled on each other. Wish it would run on my older iPad! -The helpful explanatory tips are good, but I wish I could figure out how to shut them off. -I wish I could take screen shots in landscape view. Wish: -Now if it had a way to measure flicker of bulbs! Don't care, make it a separate app or make it a purchasable upgrade for this one. I'd buy it!.Nickname92829Version: 4.2.1

Quite accurate!I used to use a $2,000 light meter to measure color temperature when I worked in the film industry. This meter costs only a few bucks and is almost as good. The app description says it’s within 8% of the actual color temperature, which in most circumstances is sufficient. I tested the app in a variety of environments; I.e. outdoor sunny, outdoor cloudy, interior lights, balanced to daylight, cool white, etc. and it worked great. If you’re doing scientific measurements it might not be what you need but for film and video it’s pretty great..QuarkUnitVersion: 4.3.0

Pretty good overallI have some LEDs where I know the wavelengths, and under some combination lighting conditions the app is super inaccurate—but under lots of conditions (including combination ones) it’s very accurate. Useful tool, overall. I wish they would fix the inaccuracies but I’m still glad I have this app; there’s no other app that has a full spectrogram right now..M22222299999Version: 4.3.1

Color temp without external hardware!I was looking for an app to measure color temp without external hardware. I found this after trying several others and was very pleased..KnightontherimVersion: 4.2.1

Impressive appThe app provides a detailed spectral graph using data it collects from the iPhone camera. Very impressive and useful for light analysis in various environmental conditions. Kudos to the developers!.SunjVersion: 4.1.0

Big improvements in this version!I really needed an app like this for an upcoming job, but was hesitant based on bad reviews of its past versions. But for just 2 dollars, I figured I didn't have much to lose… I've now run it on a 3rd gen iPad (Retina), iPhone 4, and iPad mini -- all running iOS 6.1.3. I don't have any way to calibrate its output, but the app runs fine, gives me reasonable results (it "sees" 5500K in daylight, around 3000K for fluorescents, etc.), and seems pretty well behaved. The built-in help is pretty good, but needs to be updated (it mentions a calibration button that the app doesn't seem to actually provide). I'd give it five stars, but took off one because the app crashes occasionally -- but then works just fine when I restart it (has only crashed twice, so I can't really characterize what's going on there). So if you were concerned about this app's past reviews, it seems the dev has fixed the major bugs (at least for the devices I've got available to test it with). A really handy app if you're trying to filter flashes to match ambient light from uncharacterized sources..RsgeekVersion: 1.4.1

Great appThis inexpensive app does a great job on my iPhone of measuring light color temperature which is exactly what I wanted!.RonKirklandVersion: 4.3.0

WowThis is an amazing application. You did a phenomenal job, thank you!.PatrickjpaschalVersion: 4.1.0

Great appI'm a lighting engineer and have worked with a lot of lighting test instruments. 1. This app is working on my iPhone 4 2. This app can measure the Lamp Bulb color temperature 3. The accuracy, remember the Color Temp on the lamp brochure is based on Lab Test where the electrical voltage and frequency is precise, and the figure (i.e 6500) is a rounded-up, that way we cannot expect the reading from this app is the same with the lamp brochure. So the accuracy of this app is something that we can say "acceptable" considering the measurement is "on site" where the voltage and frequency is not precise. Hope my review is usefull..SachaUllyMCEVersion: 1.3

This app is accurate within 100 kelvinThis app can save you $1,600 USD. That is the cost of a professional Sekonic C-800 color meter. I’ve tested this app, extensively, in multiple lighting conditions and it’s never been off by more than ~100 kelvin. Most professional DSLR and MILC cameras only allow setting custom white balance in 100 kelvin increments anyway, so this app’s margin of error is very well within the acceptable range. The closest that this app was to reference was a stunning 14 kelvin! Virtually all of the other reviewers, unfortunately, have been using and testing this app incorrectly. (Certainly this app’s documentation could be improved). This app is not an incident color meter like the C-800, so you can’t just dangle it in the air and expect an accurate reading. To get an accurate reading with this app you have to point your iPhone’s camera at an RGB-neutral white or gray target—IN EVEN LIGHTING—(like the X-Rite Color Checker Passport’s white balance card, for example). This should give you a reading that’s within approximately 100 kelvin from the reading you’d get from an extraordinarily expensive handheld incident color meter. I use this app to calculate the delta between the white balances of ambient lighting and flash lighting in order to precisely determine how to gel the flashes, without guessing and without having to use a $1,600 color meter..FhoxhVersion: 4.0.3

Changed my reviewThe last update allows the app to finally work on my iPhone 5. I can't believe it took as long as it did for an update. The readings are not 100 accurate but it's enough to get you in the ballpark for tweaking later... Which is ok. I wish you could set it for florescent to get better readings for that. Sadly, this is the only app (for now) that tries to offer reading color temp of a room in kelvin degrees, so there's not many options to compare it with. Again, be careful trying to read in florescent and incandescent ... But other than that, it's worth a few bucks. ...as long as the iPhone 6 doesn't come out and we have to wait another year for this to work..MotorwoodVersion: 1.4

Great for measuring color temperature of lightbulbsWe’ve been changing all the lightbulbs in our house to LEDs, and like the yellower light in some rooms and the whiter light in others. I’m using this app to measure our existing bulbs to determine what would look best in the next room and it works perfectly. I tried a couple of other apps and neither of them consistently could measure the color temperature consistently, but this one does so exactly and in real time. So for this purpose it works perfectly and I give it five stars..BythecshoreVersion: 3.2.0

Gives Good Data, Needs WorkI'm getting believable and reproducible results with LSP, which is hampered somewhat by sketchy English grammar and spelling, but mostly by a lack of any procedure on how to set up and use the app. Technically, it seems to work well, and is nicely laid out. My own method has been to choose a uniform target surface in some shade of white, with WB turned on, using either D65 or D50, and illuminated by light from single color temperature source. Then I press HOLD and give LSP several seconds until the reading settles. I then save the readings for reference. These vary a bit depending on the Illuminant and Adaptation method, but I do see 'correct' numbers for daylight, incandescents, and CFLs. I'm using the app to determine what color temp of LED to choose; since these are very expensive, a mistake would be costly..LisianneVersion: 2.1

Helpful appI shoot indoor sports in a variety of poor lighting. High school gyms. This app was recommended by another pro photographer and it has proven to be very helpful. While I shoot in raw, it’s nice to get the white balance correct in camera as a starting point for editing. This app does that. I especially appreciate the spectrum display which helps me understand what’s behind the K value. For sure worth its small cost!.BillWayTodayVersion: 4.0.5

Good for the priceI think some of the reviewers of this product don’t know what color temperature is. It has nothing to do with brightness. The reviewer who suggested measuring the light reflected off a piece of white paper is giving great advice. If you do that, the app seems reasonably accurate when measuring light above 2700K. It is NOT accurate below that color temperature. It thinks an amber light is still 2700K. For the price, I think it is worth 3 stars. Disclaimers: I did not compare measurements against a professional meter, and I’m using an iPhone 7..KJKruegerVersion: 4.0.2

Does what it advertisies, I thinkThe user interface of this app does not have the options that are pictured in this App Store. I have an iPhone 6S on iOS10. Starting the app results in one window which apparently shows the color temp as well as what I'm assuming is Hue, Saturation and Luma values. There are NO options on my version of this app, you get what's loaded. Also, the developer website is in Italian and I've contacted the developer and have yet to hear a reply. So far, it's not worth the $2 but I guess it shows me color temp which is what I wanted..ZReaderVersion: 3.0.4

Seems OKColor temp readings seem accurate. Learning curve: I tried aiming at light source. N/g. Then I held up a white piece of paper being lit by the light source and aimed at that. That works..VidshooterVersion: 3.0.6

Appears to work well!Have had about thirty minutes and have analyzed the TVs and lights in my home. The results agree with the claims of the various bulb manufacturers and critics. Yes, the LED TV does emit blue light, the blue light blocking glasses block the blue light effectively, the amber night lights don't emit blue light, etc. Very easy to use! If you have an interest in this subject, you may want to try this app..Vicar!!!Version: 3.1.0

Working great on iOS5Took a chance based on the bad reviews where it wasn't working on iOS5 and it's working fine for me. I can't wait to use this for some night photography where I need to match flash color gels to ambient light sources in order to balance color temp in a scene. Very useful app! Good job ....STL After DarkVersion: 1.2

B AllenThe app works very well. For those who are having trouble there is a thin bar toward the bottom and below that a small bar. Pull up that bar and there are many ways to adjust the temperature. For natural try F7 and none. Works well and takes great images..Ob1 245Version: 2.1

Works great ( iPhone 3GS) iOS 5I don't get why people cant get this app to work... Its perfect for everything I have worked on with no problems. I would however like to see updates at some point. Great job guys and thank you very much..123ecoryVersion: 1.3

Very ImpressedReally helps me nail down my white balance when photographing indoor sports. What used to be a lot of guess work in capture and in post processing has now become a lot easier..Jrash168Version: 3.2.0

Works now!Downloaded and checked. It works now and I have a new 4S. Measured various light sources (wanted it for my reef tank). Whatever they did it seems to work..Sumo sizeVersion: 1.2

Well it sorta worksI love as able to show the difference between an LED and incandescent bulb while dimmed, but in genial the UI is broken for the 6+ and I can't seemed to use advanced functions. can't switch between photos, maybe the button hides on the 6+.ColdspongerVersion: 2.2.1

Worked well for meI have led lighting on my boat of various temperatures so I try to match the light color when I upgrade. App helps me get the right temp LEDs..LED Light SailorVersion: 3.0.6

Working well iphone 5 ios 6.1Seems to work well. Need to review instructions and understand how to calibrate it..DocsparksVersion: 2.1

YCImaging recommended this app!And I love it. Easy to use and makes locking white balance in manual mode camera apps a breeze!.HappyMe%Version: 4.0.4

It works!!Balance your light sources with this app.P1xelpusherVersion: 3.0.4

This works, but still room to improve. I like it, however.I downloaded this after seeing it spoken about on YouTube, and I thought I would give it a try. I downloaded it first to my iPad. The first time I opened it, the screen kept “blinking”, and nothing changed with the onscreen measurement, even though I tried a couple of different lighting conditions. I exited the program, and closed it. I opened it again. Voilà! This time, the blinking stopped and the measurement changed as it should. To test it, I set the Kelvin indicated on my Nikon Z6, and I am pleased with the result. I then tried it on my iPhone 6 Plus. The same blinking issue occurred the first time I opened the app. I closed and exited the app. I opened it again, and it seems to be working. I also compared the results using Auto WB on my camera, and there wasn’t that much of a difference, but there was a bit of a shift in the green channel. I may do a few more tests, and will share that if I get around to it. The program only works in portrait (vertical?) orientation. I gave the program 4 stars because of the first time start up bug, and because it does not change orientation..AquilaAstraVersion: 4.0.4

Great!Works great for my realestate video & photo!.PatLegendVersion: 4.2.1

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LightSpectrum Pro Negative Reviews

Camera issues on iPhone X!!There’s a serious camera issue when opening up the app on the iPhone X on iOS 11.4.1. Video/picture feed is super fuzzy and not sharp at all! Update: AUG 2020, 2 years later and the camera issue has NOT been fixed!! I’m now on an iPhone 11 Pro Max running iOS 13.6. This app is still having issues focusing both the rear and front facing cameras! Anything in front of it still remains unfocused!! There is still no tap to focus option! What a disappointment and waste of money!!.MIKE CANVASVersion: 4.1.0

Needs a target on the screen to only measure that pointThis app needs to have crosshairs or circle at a point on the screen, to only take measurements. General averages of the picture isn’t a great feature. Spot metering will make this app awesome!.FirelightdpVersion: 4.3.0

Very misleadingThis app claims to show you a spectrum of the light it is observing. This is impossible since each IPhone pixel can only measure the relative strengths of the red, blue and green light entering the camera. This makes suspicious of every bit of data the app displays.Gw734Version: 4.2.1

ScamApp does not measure spectrum. iPhone does not have spectral sensor. I compared this apps readings to Sekonic C7000 spectrometer and a Photo Research PR670 ($20,000 instrument). This app’s readings are completely wrong..W ChangVersion: 4.2.1

UserI do commercial photography and thought an affordable color temperature meter would be a good idea. This one is real disappointing, with a puzzling interface, useless Info button, and plenty of typos or spelling mistakes in what tries to pass for a user guide. I'm not sure how to get a simple color temperature reading. All I want to do is point it at a light source and get a reading. I don't know why I need to choose a light source (the whole point of this should be to get a color temperature), don't know what they mean by "light mode" and don't want to have Google translate their web site into English. I know, it's only a couple of bucks, but still I'd like a refund in return for the hour or so that I wasted on this nearly worthless app..Harry does photosVersion: 2.3.1

Worst app I've ever wasted my $ on!!Complete rip off. Not only doesn't this app work, but the app support button tells me that their website does not work either. Guess the guy that designed my app must have built their website. Where is Mr. Cook's head these days...clearly he's not looking after Apple and it's products or reputation!! How can Apple allow a non-functioning app with a non-existent support structure to remain in the App Store. Shame on Apple!!.Scott59Version: 1.3

Inoperable iPhone 5 iOS 6.0This app is Inoperable on iPhone 5 running iOS 6.0. While it does load and some of the button produce a response, it is unable to access the camera and does not return any color temperature value. After reading other reviews, it seems possible that LightSprectrum does function on some iPhone models running older iOS versions. However, no warning is made in the store description regarding hardware or OS software limitations - so it's being misrepresented as a universal app compatible with all hardware and iOS versions. In addition, the developer Website link provided by the Store is broken. I have filed a complaint and asked for a refund. Caveat emptor!.CamerabuffVersion: 1.3

What is this good for?I was hoping for sources to display as a color temperature reading somewhere in the actual range. Grey cards, bulbs, paper, under daylight shade, or incandescents, or 4100k fluorescents, all show figures I know to be hundreds or thousands of degrees off. It may be that you can set a range to read within, but how useful is it to point at a 6500k source and be shown a 2681k reading?.BrutusflyVersion: 2.1

Program s..ksThe description claims it performs yet most reviews tell the truth, it's bogus at least for IP5. I sent an email last November and had a reply that they were working on update fix. Don't waste your $$ until the reviews start to turn positive. I took a chance after reading some reviews that were 3-5 in spite of the overwhelming negative reviews..EdcallingVersion: 1.3

Complex, no instructions, not accuratePerhaps this app does work and no one can figure out how to make it work? The interface is illogical and very complex with in-app instructions or on the developer website. Based on what I can do with the app it doesn’t work, if I point it at a 6500K calibrated light source it reads very different values and is entirely inconsistent..Rus_selVersion: 2.2.1

Needlessly ComplicatedThis app reminds me of carbon dating rocks. Geologists need to know how far down you obtained the rock b4 they will date it. So this app asks you to fist tell what light source u r reading from and if u get that wrong your results r way off. This fact alone makes it pretty much useless to me- want my $back!.DjonbrooksVersion: 2.1.2

Works on older devices but not iPhone 11 ProThe description really should say which devices this app works on. It doesn’t work on an iPhone 11 (the numbers don’t change at all), but it does work on an older iPhone 6s that I happen to still have..Fireguy360Version: 4.0.5

Great idea... But it doesn't really workThis is a terrific idea. I wanted to use it to think through conversion from incandescent to LED lighting to choose the right color temperature lamps. But the app pretty consistently over estimates the color temperature by a wide margin and it crashes too frequently to be useful. Bid really like my $1.99 back..PaulMullenVersion: 1.4.1

Not goodGreat idea but this app was released way too soon. It is wildly inaccurate and doesn't ever give consistent reading. At least if they were consistent, you could calculate the difference. At this point, this app is a complete waste of money. Hopefully they will continue to improve it..Sarah FimmVersion: 1.4.1

Not working on I Phone XDoes not work using back camera on I Phone X. Reading stays the same regardless of light source. Front camera does seem to at least give different readings but is hard to use if you want to take a reading and see the results..Jpgst43Version: 4.0.3

Did not open cameraDid not work at all. Just shows a picture of no camera and app settings / camera settings will not allow access to camera. This is on my iPhone 6..The502GuyVersion: 3.0.6

UselessTotally useless. Seems like it is just generating a random number. Totally inaccurate when compared against a known source. Written in very poor English the in-app help is of no use and references buttons on the screen that don't exist in the current version. Waste of time..SrqbeachloverVersion: 2.3.1

A useless toy for $2Application does function on iOS6 - no problem with that. However it's a useless toy. Readings are so far from reality and so inaccurate. you measure same buld 3 times and it gives you 3 readings: 2900K, 3800K and 6200K. Bottom line: this app is waste of time and money. Do not recommend..Vlad-MiamiVersion: 1.3

Why did I buy this!?I don't know why I didn't read the reviews! Does not function at all. In your next update you should make this app show a funny picture or something so I won't feel so bad about wasting my money!.Bo Jangles0711Version: 1.3

Does not workI saw this working on a friends IPhone 6 and was impressed. He has Ver 3.0.1. I downloaded latest Ver 3.0.2 on my IPhone 6. It will not work at all. It is stuck on the opening screen. I cannot locate "tiny bar" some have suggested swiping..Bad Todo userVersion: 3.0.2

What a waste of money.Does not even turn on camera with iPhone 5. Buttons beep and that is it. Guess you can say I just gave 2 bucks to a bad developer. Apple you need to police the store better for these rouge apps. Very disappointed with this one. DON'T BUY. A WASTE OF MONEY..BufordTHedgehogVersion: 1.3

Over takes my iPhoneWhatever the programming is doing is bad. It takes over the iPhone. I can’t even exit the program, buttons don’t response..SamK852Version: 4.3.0

BADChecked CCT against our Pro Lab equipment. NOT EVEN CLOSE. out by more than 1000K..SilverSeasVersion: 3.2.0

Camera function not operationalCamera not working. Screen is solid blue color. Calibration screen solid white. Having to give one star to a non functioning app is wrong..CS2011Version: 1.0.0

Entirely inaccurateI bought this app with high hopes, but was prepared for some inaccuracies. That being said, I can’t any consistent or accurate readings. I am using a light source that I can control the colour temperature of, in a controlled environment, and comparing with readings from other meters / software. I feel this could be easily solved with some sort of calibration function, which I can not seem to find..AcerbiusVersion: 4.0.5

UselessShows overcast daylight as 2800K. I know it is 6000K, and my PDW700 agrees with me. Same price as two Mars bars so who cares. I deleted it..Im 10Version: 2.3.1

Absolute crapThe interface doesn't fit on my 6s so I can't even begin to try to figure it out. Waste of money..Water-skidudeVersion: 2.3.0

Doesn't open on my 5SApp doesn't open on my 5S.... Just a black screen. I guess it's accurate in the dark. Developer says there's a fix coming in November, but WHY is this app for sale when it's unusable for many users??.AMJPROVersion: 1.4.1

Not workingNot working on new iPad 3 even if they say that it is compatible with iPad! Disaponited that I ve paid for this ,.Colour.911Version: 1.3

Random number generatorThis is a useless app. Don't buy it. It is nothing more than a random number generator..ProudcdnVersion: 1.3

ScamThis app is a scam..Fhufcrgvji bgdfhjkuffvbjyfVersion: 1.2

Doesn't work hereThere is a bit of difference in readings from various light sources but it read an old skool incandescent in a white room at 5000k and a supposed warm white cfl at 5500k - not even close. This is on an iPhone 4 if it makes any difference. Putting one star so it doesn't show as unevaluated, maybe more people will read comments before buying... unlike me lol..Count BlaVersion: 1.0.0

GARBAGE - DON'T BUYNot sure why I let my self get suckered by this. Not sure why I thought it would work anyway. Best of all the "developer" even forgot to spell check all the text in the interface. he or she and APPLE laughing all the way to the bank BUYER BEWARE!!!! SCAM!!!!!!!!!! One star rating is a negative star.RufTDVersion: 1.0.0

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