Dominant λ Light Spectrometer

3.7.1

Contechity AB

4.44

656 reviews

50,000+
Downloads

Free

This spectrometer app measures the dominant wavelength of light

Dominant λ Light Spectrometer Screenshot 1 of 7

Dominant λ Light Spectrometer Screenshot 2 of 7

Dominant λ Light Spectrometer Screenshot 3 of 7

Dominant λ Light Spectrometer Screenshot 4 of 7

Dominant λ Light Spectrometer Screenshot 5 of 7

Dominant λ Light Spectrometer Screenshot 6 of 7

Dominant λ Light Spectrometer Screenshot 7 of 7

4.44 · 656 reviews · 50,000+ downloads

iOS version

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.

Download Statistics

Dominant λ Light Spectrometer has been downloaded 73 thousand times. In the last 30 days, the app was downloaded 1.5 thousand times.

User Ratings

Dominant λ Light Spectrometer is rated 4.44 out of 5 stars. The rating is based on 660 ratings.

App Information

Dominant λ Light Spectrometer is FREE to download. The APK download size is 20.37 MB. The latest version available is 3.7.1. The last update was on June 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 August 2023.

Description

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 to download
Total downloads	73 thousand
Recent downloads	1.5 thousand
Rating	4.44 based on 660 ratings
Ranking	Not ranked
Version	3.7.1
APK size	20.4 MB
Number of libraries	0
Designed for Android	7.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

Get a detailed PDF report for Dominant λ Light Spectrometer with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the Dominant λ Light Spectrometer app

Dominant λ Light Spectrometer compared with similar apps

Common keywords of similar apps

Wavelength Dominant Surface White Source Nm Wavelengths Smartphone Devices Spectrometer Sources Accurately Spectrum Regular Colored Led Frequency Period Length Automatic Warnings Conditions Accurate Appears Mixture Tablet Good Short Long Limited Feedback Range Light App Measurements Measure Camera Color Time

Keywords missing from this app

Meter Lux Lighting Sensor Intensity Colors Measurement Brightness Pro Measuring Features Level Exposure Device Ppfd Accuracy Plants Levels Room Plant Professional Recent Growth Tool Advanced Values Design Maximum Illuminance Foot Easy Analysis Real Data Export Support Simple Home Find Hex Palettes Precision Average

Google Play Rating history and histogram

490

Downloads over time

Dominant λ Light Spectrometer has been downloaded 73 thousand times. Over the past 30 days, it averaged 51 downloads per day.

Changelog of Dominant λ Light Spectrometer

Show changelog

Developer information for Contechity AB

Contechity AB

apps@contechity.com

Website

Legal name:

Address:

Phone number:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

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

This app is not ranked

Technologies used by Dominant λ Light Spectrometer

Dominant λ Light Spectrometer is requesting 10 permissions and is using 0 libraries.
Show details

Top new apps Apps other people are watching Apps on sale Popular Tools Apps Today's trending apps

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps