|Rating||4.8 ★ / 5|
|version||Varies with device|
|Size||Varies with device|
|OS Require||Varies with device|
|Author's Notes||Identify lights in the night sky, predict Iridium flares, ISS and sat passes|
Live sky chart
See what's in the sky above you right now or at a given moment.
Get precise predictions for passes of the International Space Station (ISS) and most visible satellites.
See when Iridium satellites mirror the sunlight directly towards you, resulting in bright flares.
Get passes for amateur radio satellites, complete with uplink and downlink information.
All calculations performed locally
Predictions are generated right on your phone so you only need a data connection every few days.
Orbit and ground track
See details about the orbit of any selected satellite rendered and with all relevant data.
Get detailed information about any satellite, as provided by our Heavens-Above website.
Get a visual overview over passes and animate the position of satellites on the sky chart and on the ground track.
An optional red on black color scheme to preserve your night vision.
Easily find or identify any object in the sky by orienting your device towards it.
Quickly add interesting passes to your calendar so you won't miss them.
This version is free of advertisements. You can try the free version before buying this one.
v1.64: Polish translation
Work around a dependency issue on Android 9
v1.63: Russian translation
Identify lights in the night sky, predict passes of the ISS and of satellites
Your resource for stars, planets, the Sun, the Moon, and astronomical events
Map of stars, planets, meteor showers, galaxies and nebulae.
Mobile Observatory 2 - The Astronomy App for your Android Device
See the International Space Station, planets, comets and more.
Identify lights in the night sky, predict Iridium flares, ISS and sat passes