iPhone Screenshots


The Dark Sky Meter app measures the sky brightness and shares it (optionally) with scientists around the globe.

What’s New

Version 3.0.5

iOS 12.2 support
Updates the My readings panel with fresh readings from the backend in stead of cache.
Clear nights for everyone, i hope.

Ratings and Reviews

4.2 out of 5
5 Ratings

5 Ratings

Tomrobbe ,

Love this app

This app along with info on their web site is a real boon. In my experience it is quite accurate and useful in comparing observing sites. However it appears it saves only your most recent recordings which is too bad. Also until just recently it has a second benefit of reporting local predicted seeing and transparency as now I cannot get it to report. It has been a great app! I very much hope it is not on its way out. Get this app and support a very useful tool!

Mark_Mark ,

App gives unreliable readings, website is poor

I had used this at home in Bortle class 6 area and the readings seemed reasonable. Then I took it to a dark site, listed as one of the darkest areas in the continental US. I got multiple failures from the app, and finally it gave me a reading of bright suburban sky. At this point I gave up. I do not believe this app is trustworthy

Palomar Skies ,

Measure the Night Dky

Dark Sky Meter is the first app for iPhone to allow users to accurately measure the brightness of the night sky. Amateur astronomers and dark sky advocates are likely familiar with the Sky Quality Meter (SQM) device. This app gives you an SQM in your phone and for the 4S and 5 gives very accurate results without having to buy an SQM. The app is well worth the purchase price.


5.5 MB

Requires iOS 10.0 or later. Compatible with iPhone.



Age Rating
Rated 4+
© Norbert Schmidt 2019


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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