Dominant λ Light Spectrometer

good

very easy to use and contributes real time accurate and useful info in today's new buildings everything is engineered to supply so many lumens or watts per square foot furthermore of a spectrum that promotes happy healthy employees

it works pretty good

works well, picked up infrared and near infrared laser. couldn't get the exact wavelength but it does tell you in-between 700 & 1000nm which works for me. Even worked on strobe light

I thought that the app was well designed and the instructions were very clear and easy to follow 🙂

exciting like the fluorescence I'm measuring

still working with it so far the results are promising

Relatively Simple and straight foward. Works well for analysing the frequency compositions of different light sources.

what use is this supposed to be. only seems to measure full spectrum, nothing else

did not allow me to try it

seems ok 👍

great! looks to be accurate in the visual spectre..

Delighted! Lots to explore with this unique scientific app. Thank you!

ok

thanks it works

Intuitive and easy to use!

not what it seems to do.

its a light dominant colour telling app. not spectrum analyser.

the app seemed to work slightly however not for my needs. I was trying to measure the frequency of a red light device I have but it could not make any distinction of the red light. I'm sure it may work for someone else's needs

good app thanks

very precise

shows hot places with IR indication. Excellent to find heat zones in your home and make a remedy!

Can't use the app, it's always asking to restore.

this is very nice as a filmmaker who absolutely in love with color the helps alot...Thank you for this very helpful app

you are required to give credit card before use even for the free trial. that's a hard pass for me.

Like this app for my curiosity. Using it for free. Skipped the subscription. My current need isn't great enough to subscribe or buy.

Good dose what it should

gud

great app tried it an it does what it say it does

well I tried it on a couple devices. seem to work pretty good devices were well short of the expected frequency of light. I like the app was easy to use. I used a white background and shine the light into that.

doesn't read high enough I use 650nm, 850nm and 940nm light, I tried it on 850nm and it registered 600 nm, needs some work

Instantaneous, accurate, easy to read screen

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.

"Chapeau" to the developer! An essential app for those who know about the relation health/light.

measured my 532±10 nm laser as 541 🎉👍and my 650 nm USB laser 303 as 610-700nm

Works great. I tested it on my 488nm laser. Very accurate.

as far as I can tell this app seems to work pretty well. I would like to be able to test infrared light.

very useful 👍

cost

works good for some light. However, if your wanting below 475nm (what I wanted it for) is almost useless. it just tells you it's below 475. This is a hardware limitation, but wish I was warned before starting the trial. I guess I should have read more carefully, it may be in there somewhere.

THANKS I HAVE OPTED FOR FREE VERSION, YOURSELF PLEASE PROVIDE FREE VERSION WITH ADDS.

You can use it for free for a day or two and you will see that it measures 575nm even when there is only 620nm and 535nm in the light source, no 575nm.It measures very inaccurately and has nothing to do with reality, which is orange and sometimes says 660nm. 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.

still not quite sure about this thing

so magic like it thanks

the app work's fine but there's no way to confirm that the reading are correct.. so it's just that this helps to see spectrum of light visible under different lighting conditions

good for growing too

love it

so far, very accurate

Excellent!

not as advertized... only measurse light intensity....

😀

immediately interested,I put up my deep red eel skin wallet and meter showed me the w/l without calibration

great app

love it,I see the world alot clearer now.thank all of you who worked on this great app.

I have a JOOVV red light panel setup that I use daily for ambient and therapy purposes.This App verified to the tee that the light emitted was as advertised.

Excellent! I've been looking for this function a long time. Very effecient and accurate! Thank you!

its superb

I love this tool alot! This is the only application available for this purpose! But, two things. I would like it to tell the specific frequency and wavelength of the Infared Radiation (IR) that I'm trying to messure since cameras are usually able to take in IR. I'm not the biggest fan of it saying "IR or Red 700-800 Nanometers (nm)". And lastly, after the first time I use this, It will start forcing me to buy the subscription thing in order to use it which bothers me.

This app does the best it can with your camera which is useful if not always 100% accurate.

excellent so far I'm liking this app

worked perfectly for a while, but now the subscription popup shows every second

Awesome app! Can be easily calibrated. The only drawback is it ain't free, but unlocking is only $7.

wonderful

disappointment

Glitchy. Used to work quite well. Doesn't let me actually use the app anymore and measure anything, switches to a pay here screen. If it's free advertise it as such. Used to work well, quite a waste of time now. Fix your app.

Best and very accurate. I buy this one lifetime subscription.

Kewell

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.

Useless. Phone camera/app not able to capture a light source. why pay for something that your phone can not do???

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

I'm actually confused. Can this app be used as a detector for uv-vis spectroscopy?

good 👍

I JUST LOVE DOMINANT LIGHT SPECTROMETER

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.

I checked my 3 red light therapy devices. worked great. shine camera on the reflected light not on the device.

Pay money to use a simple spectrometer, test period is like 5 minutes, sucks.

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

I installed the app. If I remember correctly I did not have to select anything and it showed something (do not know if it really worked). I forgot about the app and when I tried to run it again it said "Your trial period ended". I did not know it was a trial period. I thought it worked with adds or pay for a license. In the end I did not get to try it. How do you spect me to buy something I do not know if it works? You have to make it clear there is a trial period.

i need this app to detect uv light radiation. it works, hare krishna

Relatively accurate depending on camera and phone

Really very good app to use and learn the fundamentals of optics. Thank you.

I like it

Good

I was looking for a spectrometer to match my wall to the paint I have. It showed it wasn't a match. VERY IMPRESSIVE. However I didn't keep my subscription since I'm not sure how to go to the paint store and get an exact match. Do I tell them the number? At any rate a great app and easy to manage subscription and all at a fair price.

Does NOT measure 365nm even though this is visible to the camera. Only starts at 400nm. CAN YOU PLEASE UPDATE TO INC THE UV RANGE COVERING 365nm. Thanks.

What is it with the white wall stuff not everybody has a nice new bright white wall !! app, is useless

its not accurate. and its expensive

Does the 6.99 include both this and your other app for lifetime?

Does exactly what it says... Mediocre amount of ads

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

This app really works I try all their apps and all of them do work.

Dosen't work

seems to work fine

It's ok. Wish it would show lumens as well.

measures 660 as 640. 3 days is not a sufficient trial period.

Hard to judge if it is worth having or not as it does not read light in the wave i need it to (sub 400nm) it is also very picky about how the light is shown

The only light spectrum analyzer app in the market, probably the best one too. Kudos on the work 👍

Seems inaccurate. Shows 650 nm light as 612 nm. No option for calibration.