Dominant λ Light Spectrometer is made and published by Contechity AB. AppBrain is an independent app data site and isn't affiliated with Contechity AB. The app name, icon, screenshots and description belong to Contechity AB and are shown as published on Google Play.

Pros & Cons

Camera-based spectrometry enables portable, smartphone-based measurements
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

About Dominant λ Light Spectrometer

Dominant λ Light Spectrometer is a tools app developed by Contechity AB.

Install Statistics

Dominant λ Light Spectrometer has been installed 76 thousand times. In the last 30 days, the app was installed 2.1 thousand times.

User Ratings

Dominant λ Light Spectrometer is rated 4.39 out of 5 stars. The rating is based on 700 ratings.

App Information

Dominant λ Light Spectrometer is freely available from Google Play. The app size is 21.05 MB. The latest version available is 3.8.0. The last update was on August 25, 2026.

Technical Requirements

Dominant λ Light Spectrometer requires Android 7.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since August 2023.

Description by Contechity AB (from Google Play)

This app gives you the possibility to very easily measure the dominant wavelength of different light sources.

More data about Dominant λ Light Spectrometer

Price	Free
Total installs	76 thousand
Recent installs	2.1 thousand
Rating	4.39 based on 700 ratings
Ranking	Not ranked
Version	3.8.0
App size	21.0 MB
Number of libraries	0
Designed for Android	7.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Screenshots

Dominant λ Light Spectrometer Screenshot 1 of 7

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Screenshots by Contechity AB, from the Google Play listing

Official page on Google Play Also on the App Store

Also available on the App Store

Light Spectrometer Wavelength

Contechity AB

4.2

Free

94 ratings

Alternatives to Dominant λ Light Spectrometer

Google Play Rating history and histogram

Rating history

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Installs over time

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Dominant λ Light Spectrometer has been installed 76 thousand times. Over the past 30 days, it averaged 69 installs per day.

Changelog of Dominant λ Light Spectrometer

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Developer information for Contechity AB

Contechity AB

apps@contechity.com

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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.

★★★★☆ 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

★★★★★ 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.

★☆☆☆☆ Ric C · Sep 14, 2026

What use is this supposed to be. Only seems to measure full spectrum, nothing else

★☆☆☆☆ 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

This app is not ranked

Technologies used by Dominant λ Light Spectrometer

10 permissions

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Frequently asked questions about Dominant λ Light Spectrometer

Is Dominant λ Light Spectrometer free?

Yes. Dominant λ Light Spectrometer is free on Google Play.

Is Dominant λ Light Spectrometer still available?

Yes. Dominant λ Light Spectrometer is on Google Play, and the last update we saw was on August 25, 2026.

Does Dominant λ Light Spectrometer contain ads?

No. Google Play does not list Dominant λ Light Spectrometer as containing ads.

What Android version does Dominant λ Light Spectrometer require?

Dominant λ Light Spectrometer runs on Android 7.0 and higher.

How large is Dominant λ Light Spectrometer?

Dominant λ Light Spectrometer is 21.05 MB.

Is Dominant λ Light Spectrometer suitable for children?

Google Play rates the content of Dominant λ Light Spectrometer as suitable for everyone.

How many times has Dominant λ Light Spectrometer been installed?

Google Play lists 50,000+ installs for Dominant λ Light Spectrometer.

How do people rate Dominant λ Light Spectrometer?

Dominant λ Light Spectrometer scores 4.39 out of 5 stars, from 695 ratings on Google Play.

Who made Dominant λ Light Spectrometer?

Dominant λ Light Spectrometer was developed by Contechity AB. It is listed in the tools category on Google Play.

What are the best alternatives to Dominant λ Light Spectrometer?

People looking at Dominant λ Light Spectrometer also look at these tools apps: Color Picker: Find Name & Code, Colorimeter, Light Meter – Lux Meter, Lux Light Meter Pro, Lux Meter: Light Meter.

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