Isstara: ISS Tracker

Track the International Space Station in your sky with Isstara, an easy-to-use ISS locator app for spotting upcoming passes and exploring the station in augmented reality.

Know when the ISS will pass over your location, how long it will be visible, and where to look in the sky. Isstara is an ISS app designed to make finding and tracking the International Space Station simple.

🛰️ Track ISS Passes
See the next visible ISS pass for your location
Countdown to the next International Space Station pass
View upcoming ISS passes
See pass time, duration, direction, and visibility
Plan your ISS observation ahead of time

🔔 Never Miss an ISS Pass

Get timely notifications before an upcoming visible pass so you know when it's time to step outside and look up.

🌌 Find the ISS in Your Sky

Use Isstara as a satellite tracker app to understand where the International Space Station will appear in your sky. Follow its direction and track its journey across the sky during a visible pass.

📱 Explore the ISS with AR

Use augmented reality (AR) to bring the International Space Station into your surroundings. Point your phone toward the sky and explore where the ISS is relative to your position.

🌍 Live ISS Tracking

See the International Space Station's current position and follow its journey around Earth. You can also track others watching ISS across the world.

📅 Plan Future Passes

Explore upcoming ISS passes and find the best opportunities to watch the space station from your location.

Whether you're seeing the ISS for the first time or regularly watch satellites, Isstara makes satellite tracking and sky watching simple and engaging. Use it as a satellite finder to explore the sky and follow the International Space Station.

Look up. Find the ISS. Explore space with Isstara.

Recent changes:
Bug fixes and stability improvements.