LightSpectrum Pro

LightSpectrum Pro

by AM PowerSoftware

39 ratings
172 reviews
$1.99

Details

  • Released
  • Updated
  • October 3, 2011
  • June 14, 2026

Features

LightSpectrum Pro video #1 for iPhone
LightSpectrum Pro screenshot #2 for iPhone
LightSpectrum Pro screenshot #3 for iPhone
LightSpectrum Pro screenshot #4 for iPhone
LightSpectrum Pro screenshot #5 for iPhone
LightSpectrum Pro screenshot #6 for iPhone
LightSpectrum Pro screenshot #7 for iPhone
iphone
ipad
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About

Measure light source color temperature and spectrum accurately without expensive equipment. View the color spectrum from 360nm to 800nm, and analyze the white point on the CIE 1931 diagram. Overlay filtered wavelengths on camera images to see frequency reflections and intensity.

Color temperature measurement
Color spectrum analysis (360nm-800nm)
CIE 1931 white point display
Wavelength filtering and overlay
High accuracy compared to professional devices
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What users say

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What's New in LightSpectrum Pro

4.4.0

June 14, 2026

This update brings support for all the latest iPhone models, introduces automatic light source recognition for a smarter analysis experience, improves overall performance and stability, and includes several minor bug fixes to ensure smoother operation.

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Charts

Top Paid

📉 95-27

Utilities

This app dropped -27 positions in Utilities chart.

Last updated on July 20, 2026.

User reviews

White Balance Good

For photography white balance, I aim this at my light source, take a kelvin reading, enter it into my camera and viola!, perfect white balance, no need for cards nor discs…I photograph models and get them into magazines.

tolles spielzeug

aber auch nicht mehr. warum sollte diese app mehr können, als die normale ios kamera app? ein weißabgleich kann nicht zu vollständig automatisiert werden, weil es darauf ankommt, was der fotograf ausdrücken will oder um welchen bildbereich es geht.

Great Spectrum Tool

Just got this app and held it under our Halogen and LED lights and our LED grow-light. This app is sensitive: the grow light has rows of different color LED and as I moved my iPhone the data changed with small moves. I think it will work great. And I love that there are no (that I’ve discovered) additional in-app purchases like so many apps have nowadays.
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Optical Camera Analysis for FREE

I read the other reviews and noticed poor reviews reflected their phone or camera or lens condition, or user error because it works excellent on my ipad pro! absolute accuracy varies with phone model, camera quality, and by how many times you've dropped or bumped or overheated your phone. roughly estimating, for every 1 meter drop and impact, your phone takes about $100 damage to camera and internal connections. if your phone reports its too hot when its not that hot around it, you've probably smacked it good at some point. it can be repaired by microscope technician but apple doesn't do that, they just exchange phone with a huge exchange price.
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Fantastic

Worked well from install but took the time to calibrate by making the spectrograph and now obtain very similar results to others’ Opple-gotten measurements, both for CCT and duv. Very consistent readings too.

I don’t know if it’s possible currently but it would be great to have the app show duv directly to save me calculating it.

Overall very happy with the app, thank you.
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Developer apps

User experience

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Reported Bugs

11 issues

App crashes on startup or during use

Bug

Camera feed not accessible or showing red X icon

Bug

Screen blinking/flashing on first launch

Bug

UI elements cut off on larger screens

Bug

Buttons unresponsive or sticky

Bug

App freezes and cannot be exited

Bug

Black screen on launch

Bug

Inconsistent readings that change rapidly

Bug

App stuck on opening screen

Bug

Camera focus issues on iPhone X and newer models

Bug

Incompatibility with iOS 5, 6, and newer iPhone models

Bug

Requested Features

11 requests

Spot metering with crosshairs or target reticle

Feature

Direct DUV (Delta uv) display calculation

Feature

Flicker detection for light sources

Feature

Calibration function for improved accuracy

Feature

Support for fluorescent light preset adjustments

Feature

Tap-to-focus camera control

Feature

Landscape orientation support

Feature

Ability to disable tutorial tips

Feature

Screenshot capability in landscape mode

Feature

Better documentation and user guide

Feature

Device compatibility information in app store listing

Feature

FAQ

What does LightSpectrum Pro do?

LightSpectrum Pro allows you to measure the color temperature of a light source and view its color spectrum using your device's camera. It provides an analysis of the white point on the CIE 1931 diagram and can overlay filtered wavelengths on captured images.

How accurate is LightSpectrum Pro?

The app boasts an error rate of 2-8% when compared to existing professional measurement devices on the market, offering a cost-effective alternative for accurate readings.

What is the range of the color spectrum measured?

LightSpectrum Pro can display the color spectrum of the examined light source with a band ranging from 360nm to 800nm, covering the visible light spectrum.

Can I use this app for photography or lighting design?

Yes, the app's ability to measure color temperature, analyze spectrum, and display the white point makes it useful for photographers and lighting designers who need to understand and control light quality.

Is LightSpectrum Pro free to use?

Based on the provided information, the application is available for free and does not appear to have in-app purchases or advertisements.