Star Chart

Windows · Mac · Android · iPhone

Freedom report

Three barsScore 6.6

Star Chart is ranked #6 of 34 in astronomy apps on Freedom251. It runs on Android, iOS, macOS, Windows. There is a free plan.

Star Chart plans and pricing

Free Free Every feature and upgrade included; no subscriptions or paywalls · optional star sponsorship play.google.com · 4 Oct 2026

Purpose: Star Chart uses GPS and a 3D model of the universe to identify what is visible when you point your device at the sky.
Star catalogue: The app maps over 20 million stars across both hemispheres.
Celestial objects: It includes all 88 constellations, solar system planets and moons, the Sun, and the 110-object Messier catalogue.
Live tracking: The listing says comets, meteor showers, and satellites are tracked live.
Exploration: Features include guided tours, voice control, and a time shift spanning up to 10,000 years into the past or future.
Viewing controls: Users can view below the horizon, set a location anywhere on Earth, and zoom into star fields.
Offline use: The listing says an internet connection is not required for normal use.
AR requirement: Augmented reality mode requires a built-in compass; manual scrolling is supported on all devices.
Privacy disclosure: Google Play reports that the app shares no data with third parties, may collect personal info, app info and performance, and device or other IDs, and encrypts data in transit.
Support: The listing gives [email protected] for feedback and support contact.
Intended users: The listing describes the app as a companion for curious children and amateur astronomers.
Maker history: The listing says the maker has been building Star Chart since 2009.
Founded: 2009
Headquarters: Godalming, Surrey, United Kingdom
Price from: Free

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