Reviews of Dominant λ Light Spectrometer

By: Contechity AB App

List of user reviews and ratings for Dominant λ Light Spectrometer

Total ratings

4.37 (Rating count: 683)

Receive review notifications

Get notified when new reviews are posted so you can respond quickly.

See reviews on Google Play Store

View and respond to reviews directly on the store page.

Visit

Review summary

Users appreciate this dominant wavelength spectrometer app as a unique tool for light measurement and educational purposes, noting decent accuracy dependent on camera quality. However, common complaints include the awkward need to bounce light off a white surface, unclear trial period details, limited UV range below 400nm, and occasional accuracy errors. The app is praised for its fair pricing and subscription management, but some wish for more extensive spectral analysis features and calibration options.

Pros

Provides relatively accurate measurement depending on the phone camera used
Useful for testing various light sources including infrared and LED lights
Educative tool for learning fundamentals of optics
Easy to manage subscription with fair pricing
Only light spectrum analyzer app available in the market with unique features

Cons

Requires aiming camera at a white surface rather than directly at light source, which is inconvenient
Limited accuracy due to phone camera restrictions; may show warnings about low saturation and accuracy
Trial period not clearly communicated, leading to confusion about app functionality before purchase
Does not cover UV wavelengths below 400nm, limiting usefulness for UV light detection
Accuracy issues noted with some light sources, and no option for calibration

Upgrade to see all 25 reviews

User Reviews

Recent rating average: 3.70

All time rating average: 4.37

Upgrade to see all 25 reviews

16% (4)

Date	Author	Comment
2025-01-10	Ma*****	Best and very accurate. I buy this one lifetime subscription.
Best and very accurate. I buy this one lifetime subscription.
2025-01-03	St*****	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.
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.
2024-12-28	Be*****	Useless. Phone camera/app not able to capture a light source. why pay for something that your phone can not do???
Useless. Phone camera/app not able to capture a light source. why pay for something that your phone can not do???
2024-12-14	Cy*****	well worth it but another app ripped my card I must've forgot to do something but the app ain't on any of my devices to unsubscribe it in play store when you go to not installed not there either . mcard looking into it I'm sorry somebody ate your sale from me Monday or Tuesday 🫂🗽⚖️sumday
well worth it but another app ripped my card I must've forgot to do something but the app ain't on any of my devices to unsubscribe it in play store when you go to not installed not there either . mcard looking into it I'm sorry somebody ate your sale from me Monday or Tuesday 🫂🗽⚖️sumday
2024-12-13	Af*****	I'm actually confused. Can this app be used as a detector for uv-vis spectroscopy?
I'm actually confused. Can this app be used as a detector for uv-vis spectroscopy?
2024-11-17	De*****	I JUST LOVE DOMINANT LIGHT SPECTROMETER
I JUST LOVE DOMINANT LIGHT SPECTROMETER
2024-11-11	Ma*****	Very good app. I am using infrared lamp and wanted to test the frequency. Since the camera of phone limits accuracy, the app gave a range of frequency and I was very happy to test it OK various led lights. It gave good results from uv to infrared.
Very good app. I am using infrared lamp and wanted to test the frequency. Since the camera of phone limits accuracy, the app gave a range of frequency and I was very happy to test it OK various led lights. It gave good results from uv to infrared.
2024-10-20	ma*****	I checked my 3 red light therapy devices. worked great. shine camera on the reflected light not on the device.
I checked my 3 red light therapy devices. worked great. shine camera on the reflected light not on the device.
2024-10-12	Ia*****	Pay money to use a simple spectrometer, test period is like 5 minutes, sucks.
Pay money to use a simple spectrometer, test period is like 5 minutes, sucks.
2024-10-01	Th*****	If you're worried about the blue light messing with your sleep and, most importantly, your dopamine levels, this is the app for you! >Find an app and decrease the blue light on all your screens that you can. #sleep #dopamine #bluelight
If you're worried about the blue light messing with your sleep and, most importantly, your dopamine levels, this is the app for you! >Find an app and decrease the blue light on all your screens that you can. #sleep #dopamine #bluelight