iPhone Screenshots


Night time photography consistantly produces some of the most stunning photographs on the planet. Dark Skies is here to help you optimize those photographs. The longer you expose a digital camera sensor to light the more photons it is able to detect, thus the longer you can expose your cameras sensor to the night sky, the more stars you will see in the pictures. There is a catch though, because the earth is moving, if you expose the camera too long the stars will blur, when done intentionally this effect can be stunning, but sometimes that is not the desired result. To use Dark Skies, simply select your Camera, and the focal legnth of your lense, and Dark Skies will use the 600 rule to calculate how long of an exposure you can have. Thanks for downloading Dark Skies...

What’s New

Version 3.4

Fixed a few bugs that were causing crashes for some users, made a change to the backend to allow faster updates for new cameras. If you have a camera not listed please email me to have it added.

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

ZachoryBenton ,

Great app

Dark Skies is my go-to app for astrophotography. It's simple and hassle free. Allows me to calculate the exposure time quicker than any other app.
And yes Nathan, I read the change logs ;)

Dave ........ ,

Free version is not usable due to ads

Could be a great app and would pay the small amount of the free version did not open up ads with every screen press. Loud ads which you can mute however after 3 it in mutes. Couldn't use the app to see if it really works.

BoGyesz ,

Horrible usability because of ads

There are adds popping up every few seconds making the app super annoying to use. You're better of with a simple calculator.


Nathan Stryker
20.6 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
In-App Purchases
  1. Remove ads $1.49
  2. Buy me a cup of coffee $2.99
  3. Buy me a craft beer $9.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

You May Also Like