Education
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Have you seen the International Space Station? It is visible like a bright moving star!

This is the easiest way to spot the station.

See the SpaceX Starlink satellite train with the Famous Objects Extension (in-app purchase)

ISS Detector will help you to find out when and where to look for the International Space Station or Iridium flares. You get an alarm a few minutes before a pass. You will never miss a pass of the International Space Station and you will never miss the bright flashes of the iridium communication satellites. ISS Detector will also check if the weather conditions are right. A clear sky is perfect for spotting.

Extensions will enhance the functionality of ISS Detector. With an in-app purchase you can add comets and planets, amateur radio satellites and famous objects, like the Hubble space telescope or the Chinese space station Tiangong 2.

Available Extensions (in-app purchase):
Radio Amateur Satellites
HAM radio satellite tracking
Track dozens of ham and weather satellites. Includes radio frequencies and Doppler shifts for most satellites.

Famous Objects
Track Hubble, X-37B, Fitsat and more

Comets and Planets
Find the planets in the sky. And track comets as they come closer to earth.

ISS Detector combines data from Space-track.org, SATNOGS, Heavens-above.com, minorplanetcenter.net and weather from yr.no.
From version ISS Detector Satellite Tracker 2.03.72:
Tiangong-2 was de-orbited, Chinese Space Station section is removed from the filters.
New About screen
Small bugs fixed
Variant
Arch
Version
DPI
(Android 4.0+)
Latest: 2.03.35 on September 30, 2018
(Android 4.0.3+)
Latest: 2.03.41 on October 20, 2018
(Android 4.1+)
Latest: 2.03.72 on August 6, 2019
All versions