"This app's creators have invested countless hours into making it what it is today, a reliable companion for my star gazing outings. And it gives you the weather as well!!!" - Pilar (5/5)

"I’ve now got about 6 months of use under my belt. I love it, it’s my go to place to see if I’ll be observing tonight..even if your just a casual observer or someone deep into Astrophotography, or someone in the middle like me. You owe it to yourself to try it." - Dave (5/5)

"This has been my go to app whenever I plan on an observing session. A nice bonus has been the chat rooms where we can chat with other stargazers. As far as I know, this is the only iOS app that has this type of chat room for astronomers. Well done!!" - KTYL (5/5)

Help make frustrating cloudy nights a thing of the past!

StarCaster is an intelligent forecasting app that helps you plan the perfect times for stargazing and night photography.

Accuracy: Tried and tested with 100's of users worldwide before our first launch - we challenge you to find a more accurate stargazing forecast app. Our custom prediction algorithms rely on multiple sources and are globally available.

Traveling: StarCaster has got you covered with our global network of weather observatories and the ability to add locations you'll be visiting for a personalized forecast.

Alerts: StarCaster can alert you to when stargazing times will be optimal taking the guess work out of impromptu sessions and letting you focus on stargazing instead!

Chat: A first for astronomy apps - our in app chat with our amazing community allows you to discuss Stargazing and Astronomy with a beginners and pro's alike.

Premium: A StarCaster premium subscription adds another layer of awesome by extending our usual 3 day forecast window to 7 days of predictions and adds 168 high quality personalized forecast per week!

Note: A StarCaster Premium subscription costs $0.99 monthly and is billed against your iTunes Account. The subscription automatically renews on the same day each month until you cancel it under your Apple ID in iTunes. Cancellations must occur at least 24 hours prior to renewal to avoid being billed for an additional month. Any unused portion of a free trial period (if applicable) will be forfeited when a subscription purchase is made.

Terms of Use & Privacy Policy:

What’s New

Version 1.33

First - we’d like to wish all of our loyal users a happy start of summer (if it’s summer in your hemisphere that is).
At StarCaster HQ we're incredibly thankful for our loyal users and their ongoing input to help us make the app more useful.

Help your Telescope (or casual stargazing outings) be the very best they can with StarCaster!

This version includes the following enhancements and changes:
- Speed and efficiency improvements - a complete rework of our backend processing logic for stargazing conditions.
- Bugfix: Sunrise and Sunset times now disappear during a refresh or a location change.
- In-App Purchases now automatically refresh our Premium User Interface without needing a restart.

Oh - and more bug fixes than you can shake a finder scope at!

We hope you enjoy it.

The StarCaster Development Team

Ratings and Reviews

3.9 out of 5
13 Ratings

13 Ratings

Tucson Rick ,

This app has improved

App early on had false reports of my weather conditions. Recently it has proven far more accurate at predicting my weekend stargazing conditions.

Cruikshank2 ,

Love this App

I initially got in on the beta program. But I’ve now got about 6 months of use under my belt. I love it, it’s my go to place to see if I’ll be observing tonight. Unlike other star viewing weather predictors, this one is very easy to interpret. I just look at how they rate visibility for the hours I wish to view. Rated anywhere from excellent to poor and a percentage.

It’s not 100% accurate but your talking about an app that is predicting viewing conditions all over the world. My local weatherman is wrong much more than this app. It takes into account cloud cover, darkness, temp, humidity, and winds.

Even if your just a casual observer or someone deep into Astrophotography, or someone in the middle like me. You owe it to yourself to try it. Also when you do, help make it better for everyone by reporting your actual conditions if they are different from the predictions. Without feedback the programmers can’t tweak it to constantly improve it. Thank you for this valuable tool in my Amateur Astronomy tool box.

Jackied73 ,

Great app, always accurate in my area and the chats are helpful

I found this app by chance a few weeks ago, I love it. It’s accurately forecasted my skies since I’ve gotten it. Also I am a very very amateur Astrophotographer, so the chats are helpful too! Thanks for the app!


Andrew Lombard
61 MB

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



Age Rating
Rated 4+
© Andrew Lombard
In-App Purchases
  1. Star Caster Premium $0.99


  • Family Sharing

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

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