There are already plenty of amazing stargazing iPhone apps that you can use to learn more about the planets and stars in the sky. They can even help you find certain celestial objects. Seeing them with your own eyes through a telescope is a whole lot more fun though. Unfortunately, the weather won’t always cooperate. Let’s not forget that light pollution is a big issue in many cities. Good To Stargaze for iPhone is an astronomy weather app that lets you know when conditions are ripe for night sky watching.
This app has a very simple interface. You can set thresholds for various conditions, for instance # of visible planets, light pollution level, and cloud cover, and the app tells you whether you should bother taking your telescope out. The free version of this app shows you a 24-hour forecast but you can push that to 7 days with a subscription.[where to download it]