Look4Sat: Satellite tracker

Look4Sat: Satellite tracker

Overview

• Discover the wonders of the cosmos right from your mobile device with Look4Sat, an intuitive tool designed to bridge the gap between Earth and the edge of space.

• Whether you are an amateur astronomer, a radio enthusiast, or a curious observer of the night sky, Look4Sat empowers you to connect with the thousands of spacecraft orbiting our planet.

An Expansive Gateway to the Skies

• Explore a vast, live database of more than 9,000 active satellites, kept up-to-date using trusted data from CelesTrak and SatNOGS.

• Find any satellite instantly by searching for either its common name or its official NORAD Catalog Number.

Precision Tracking, Anywhere on Earth

• Plan your celestial observations up to 10 days in advance with highly accurate flyover predictions custom-tailored to your exact location.

• Fine-tune your calculations by inputting your precise ground station coordinates for unmatched prediction reliability.

• Experience ultimate portability with an offline-first design that handles all complex orbital mathematics directly on your device, requiring only a brief weekly internet connection to refresh orbital data.

Vibrant and Detailed Visualizations

• Track the heavens in real time with clear, organized lists highlighting current and upcoming satellite passes.

• Monitor live flyovers using dynamic progress trackers, polar trajectory plots, and detailed radio transceiver information.

• Map satellite positions instantly, complete with coverage footprint boundaries, ground tracks, and real-time telemetry.

• Customize your tracking catalog by importing custom orbital data easily using standard Three-Line Element (TLE) text files.

Built on Integrity and Modern Innovation

• Enjoy a smooth, highly responsive user interface designed with the latest Android development standards, including Kotlin, Jetpack Compose, and Coroutines.

• Support an ethical digital ecosystem with an application that is open-source, deeply respectful of your privacy, and guaranteed to remain completely free of advertisements forever.

FAQ

Q: Where does Look4Sat get its satellite tracking data?

A: The app utilizes a vast, live database of more than 9,000 active satellites. It pulls this reliable and up-to-date orbital information directly from trusted public sources like CelesTrak and SatNOGS, ensuring you always have accurate data at your fingertips.

Q: How can I find a specific satellite using the app?

A: Finding your favorite satellite is incredibly simple. You can instantly search the database using either the satellite's common name or its official NORAD Catalog Number, making it easy to locate exactly what you are looking for in seconds.

Q: Can I use Look4Sat if I don't have an active internet connection?

A: Yes, absolutely! Look4Sat features an offline-first design that performs all complex orbital mathematics directly on your device. You only need a brief internet connection about once a week to refresh the orbital data, making it the perfect companion for remote stargazing trips or field operations.

Version History

v4.4.5——6 Aug 2026

Satellite tracker and pass predictor for Android Download the latest version of Look4Sat: Satellite tracker to enjoy new features and updates immediately!

*4.4.5

* Added ARISS source, tweaked SSTV sensitivity #225

* Implemented AOS window and elev filter #226

* Added cleartext traffic support for TLEs #227

* Fixed OMM import, tweaked error messages #228

* Added support for Icom CAT by ruilvo #229

* Added tweakable Radar offset by qwqtoday #230

* Localized date/time formats by atsunatsu #231

* Added linear radio Doppler calc by atsunatsu #232

*4.4.3

* Added required tweaks to support Android 17 (API 37)

* Added ACCESS_LOCAL_NETWORK permission check to support network data output

*4.4.2

* Fixed transceivers retention on a failed fetch from server

* Fixed SSTV frequency display, no transceiver selected hint

* Fixed All satellite category retention on Satellites screen