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Last updated on: 2026-06-01
Android Apps > Tools > Dominant λ Light Spectrometer
Dominant λ Light Spectrometer icon

Dominant λ Light Spectrometer

3.6.0
Contechity AB
4.44
626 reviews
50,000+
Downloads
Free

This spectrometer app measures the dominant wavelength of light

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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

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Dominant λ Light Spectrometer compared with similar apps

Keywords that only this app has

Wavelength Dominant Surface White Source Nm Wavelengths Smartphone Spectrometer Sources Accurately Regular Colored Find Automatic Warnings Conditions Appears Mixture Tablet Good Short Long Limited Feedback Added Ability

Common keywords of similar apps

Light App Measurements Measure Camera Color Devices Time Led Accurate

Keywords missing from this app

Meter Lux Lighting Sensor Measurement Plants Device Brightness Pro Features Intensity Accuracy Ppfd Plant Exposure Indoor Measuring Level Recent Room Illuminance Levels Grow Ambient Foot Easy Calibration Advanced Professional Photography Home Phone Https Photone Growth Design Support Simple Free Par

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About Dominant λ Light Spectrometer

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.
Show more

More data about Dominant λ Light Spectrometer

Price Free to download
Total downloads 70 thousand
Recent downloads 1.5 thousand
Rating 4.44 based on 630 ratings
Ranking Not ranked
Version 3.6.0
APK size 20.4 MB
Number of libraries ?
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

Google Play Rating history and histogram

470
65
27
5
48

Downloads over time

Dominant λ Light Spectrometer has been downloaded 70 thousand times. Over the past 30 days, it averaged 50 downloads per day.

Changelog of Dominant λ Light Spectrometer

  • May 11, 2026UpdateVersion 3.6.0
  • Feb 23, 2026UpdateVersion 3.5.0
  • Dec 9, 2025UpdateVersion 3.4.1
  • Oct 7, 2025UpdateVersion 3.3.0
  • Oct 5, 2025Installs50,000+ installs
  • Aug 16, 2025UpdateVersion 3.2.2
  • Jun 22, 2025UpdateVersion 3.2.1
  • Mar 28, 2025UpdateVersion 3.2.0
  • Feb 11, 2025UpdateVersion 3.1.1
  • Jan 31, 2025UpdateVersion 3.1.0
  • Oct 21, 2024UpdateVersion 3.0.0
  • Jul 6, 2024UpdateVersion 2.3.1
  • Jun 19, 2024UpdateVersion 2.3.0
  • Mar 28, 2024UpdateVersion 2.2.0
  • Feb 25, 2024Installs10,000+ installs
  • Feb 9, 2024UpdateVersion 2.1.0
  • Jan 26, 2024UpdateVersion 2.0.3
  • Dec 13, 2023UpdateVersion 2.0.2
  • Dec 17, 2023Installs5,000+ installs
  • Dec 12, 2023UpdateVersion 2.0.1
  • Oct 27, 2023UpdateVersion 1.3.0
  • Oct 17, 2023UpdateVersion 1.2.0
  • Oct 8, 2023Installs1,000+ installs
  • Sep 14, 2023UpdateVersion 1.0.7
  • Sep 10, 2023Installs500+ installs
  • Aug 14, 2023Installs100+ installs
  • Aug 11, 2023Installs50+ installs
  • Aug 3, 2023New AppVersion 1.0.4 in TOOLS for Free
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Developer information for Contechity AB

Contechity AB

apps@contechity.com

Website

N/A

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Share Dominant λ Light Spectrometer

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 we don't have library information (yet).

Permissions

Network communication
view network connections, full network access, Google Play billing service, Google Play license check
Hardware controls
take pictures and videos
System tools
prevent phone from sleeping
Extra
android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, com.contechity.spectrometer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
We haven't collected library information for this app yet. You can use the AppBrain Ad Detector app to detect libraries in apps installed on your device.
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