# Look4Sat: Satellite tracker

> Satellite tracker and pass predictor for Android

Canonical page: [https://chrome-stats.com/d/com.rtbishop.look4sat](https://chrome-stats.com/d/com.rtbishop.look4sat)

## Overview

- **ID:** `com.rtbishop.look4sat`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Arty Bishop
- **Category:** TOOLS
- **Downloads:** 189,452
- **Rating:** 3.80 / 5 (1,005 ratings)
- **Version:** 4.4.7
- **Last updated:** 2026-09-13
- **First published:** 2020-01-22
- **Publisher country:** GB
- **Size:** 8.94 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.rtbishop.look4sat)
- **Website:** [https://github.com/rt-bishop/Look4Sat](https://github.com/rt-bishop/Look4Sat)
- **Privacy policy:** [https://sites.google.com/view/look4sat-privacy-policy/home](https://sites.google.com/view/look4sat-privacy-policy/home)

## Description

Track satellite passes with Look4Sat. Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites. You can search the database by NORAD Catalog Number or satellite name. Orbital positions and passes are calculated relative to your location, and you can set your station position in Settings for reliable data.

Built with Kotlin, Coroutines, Jetpack Compose and Navigation, Look4Sat is ad-free and open-source. Main features include:
- Predicting satellite positions and passes for up to 10 days
- Showing the list of currently active and upcoming satellite passes
- Showing the active pass progress, polar trajectory and transceivers info
- Showing the satellite positional data, footprint and ground track on the map
- Custom TLE satellite data import via Three Line Element .txt files
- Offline-first: calculations are made offline. Weekly TLE data update is recommended.

## Rankings

- #163,915 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_LOCAL_NETWORK`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH_ADMIN`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.INTERNET`
- `android.permission.RECORD_AUDIO`
- `com.rtbishop.look4sat.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Look4Sat offers an ad-free, visually appealing experience with useful features like custom TLE input and responsive developer support, but reviewers most often complain about instability, data loss after updates, usability quirks, device-specific issues, and occasional data accuracy problems. Improvements in reliability and cross-device behavior would help unlock its strong feature set.

### Pros

- Ad-free experience with no subscriptions.
- Visually appealing interface and overall ease of use.
- Supports custom TLE input for tracking satellites.
- Developer is responsive and helpful.

### Cons

- App is glitchy and crashes frequently.
- Updates erase saved satellites and settings or fail to display selected satellites.
- UI/UX usability issues: difficult satellite selection, slow pass estimation, and conflicting time displays.
- Device compatibility issues on some devices (e.g., Pixel 8 Pro; Samsung One UI) causing instability.
- Data accuracy problems and incomplete satellite data (some satellites not found; keps data mix-ups).

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.rtbishop.look4sat)