Star Chart

Escapist Games Limited

In-app purchases

About this app

The night sky has always belonged to everyone. Now Star Chart does too.

Used by over 40 million people worldwide, Star Chart turns your Android device into a window onto the whole visible universe — just point it at the sky and the stars introduce themselves.

✦ Sponsor a Star
Star Chart is free. Every feature, every upgrade, every corner of the cosmos — no paywalls, no subscriptions. If Star Chart brings you joy, you can support it by sponsoring a real star and making it your own. A small act of cosmic ownership that keeps the app alive for everyone.

What you'll find up there:
• Point your device at the sky and Star Chart tells you exactly what you're looking at — in real time, using GPS and a precise 3D model of the universe
• Over 20 million stars accurately mapped across both hemispheres
• All 88 constellations, illustrated with the timeless artwork of 17th-century astronomer Johannes Hevelius
• Every planet in the solar system, their moons and the Sun — all rendered in beautiful 3D
• The complete Messier catalogue of 110 deep sky objects
• Comets, meteor showers, and satellites tracked live
• Guided Tours — let Star Chart take you on a journey through the night sky
• Time Shift: travel up to 10,000 years into the past or future and watch the sky change
• Voice control: just say "Fly me to the Moon" or "Where is Andromeda?"
• Tap anything to learn more — distance, brightness, mythology and more
• View below the horizon, set any location on Earth, zoom deep into star fields

Whether you're a curious child pointing a phone at the dark, or a lifelong amateur with a telescope and a notebook — Star Chart is your companion under the stars.

We've been building Star Chart since 2009 and we're not done yet. Send us your thoughts: [e-mail]

AR mode requires a device with a built-in compass. Manual scrolling supported on all devices. No internet connection required for normal use.

Ratings and reviews

I've been on and off this app for a few years, but it's the best I've found for general astronomy. The upgrades are expensive, so it might be worth it to go for the full app once you see you like the free version. The older version used to let you jump from sky view right to exploratory mode, and you can't get the Latin names for constellations any more, which is how I know most of them. Still, I've shown plenty of friends the star chart, and it helps everyone understand.

Great for identifying constellations, stars, and planets. Much better than the glow in the cards. Edit for latest version. The estimated location is off by thousands of miles, but you cannot fix it. There is only an "OK" button, and the settings page doesn't take city name, state, country, or latitude, longitude in standard format. There is no tutorial for this.

This was one of the OGs and was one of if not the best on android and ios. I bought all the in app purchases for the different celestial bodies and it was worth every cent. Now it looks like it has t been updated in years and I haven't even been able to launch it on either my galaxy flip 3 or my s23 ultra. If the (I think it was free?) base app works for you then awesome, but I wouldn't spend any money on it until they update it to properly support current devices.