Reads wavelength in multiple units (nm, THz, fs) for versatile analysis
Automatic warnings help improve accuracy in non-ideal conditions
40-language support broadens accessibility and ease of use
Measurement accuracy is device-dependent due to smartphone camera sensors, with limitations at very short (<465 nm) and very long (>610 nm) wavelengths
Lacks professional calibration features and lux/illuminance-specific tools commonly found in dedicated instruments
Limited independent validation available outside user-based ratings
Alternative downloads for the Dominant λ Light Spectrometer app
Dominant λ Light Spectrometer is a tools app developed by Contechity AB.
How many times has Dominant λ Light Spectrometer been downloaded?
Dominant λ Light Spectrometer has been downloaded 70 thousand times. In the last 30 days, the app was downloaded 1.5 thousand times.
What is the rating of Dominant λ Light Spectrometer?
Dominant λ Light Spectrometer is rated 4.44 out of 5 stars, based on 630 ratings.
Is Dominant λ Light Spectrometer free?
Dominant λ Light Spectrometer is free to download. The APK download size is 20.37 MB. The latest version available is 3.6.0. The last update was on May 11, 2026.
What are the requirements for Dominant λ Light Spectrometer?
The app has a content rating of Everyone. The app has been available on Google Play August 2023.
Description
This app gives you the possibility to very easily measure the dominant wavelength of different light sources.
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Comments on Dominant λ Light Spectrometer for Android
★★★★★Dawn Ayers· Dec 10, 2025
As far as I can tell this app seems to work pretty well. I would like to be able to test infrared light.
★★★★★Cheri· Jan 11, 2026
Such a cool app! I downloaded it to test the wavelength validity of a cheap red light therapy device. Didn't read ahead enough to see that my phone camera would sell me short. It was accurate for the orange light wavelengths, but the rest were out of range.
★★★★☆Derrick· Feb 28, 2024
It has potential but what I really needed is a full spectrum analysis across the entire spectrum with a chart not simply the dominant wavelength because I want to see how much blue light is being produced rather than simply the dominant frequency. That would be similar to an audio spectrum app where you can view the entire audio spectrum in real time as you speak and see the spikes in various wavelengths
★☆☆☆☆Infraguy· Nov 18, 2025
You can use it for free for a day or two, and you will see that it measures 575 nm even when there is only 620 nm and 535 nm in the light source, no 575 nm. It measures very inaccurately and has nothing to do with reality, which is orange and sometimes says 660 nm. It says infrared for purple things. Then it asks you to pay for it, you can't do anything, and you have to pay to continue using it. It's a scam, good for gaming but very bad at measuring.
★★☆☆☆Stephanie Thompson· Jan 3, 2025
Appears useless. Says aim the camera at a white surface, not the light source. So have to try to bounce the light source you are measuring off something white. With my computer screens 'bounced' it flips between extreme pure red and extreme deep blue. Obviously wrong. All other locations around the house/garden read around 570. All the time it says "saturation is low, so the accuracy might be low too". So direct light is too bright; medium-bright is too low. Always a warning on screen.
Google Play Rankings for Dominant λ Light Spectrometer
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Technologies used by Dominant λ Light Spectrometer
Dominant λ Light Spectrometer is requesting 10 permissions and we don't have library information (yet).
Permissions
Network communication
view network connections,
full network access,
Google Play billing service,
Google Play license check
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