Starmap

Mac · iPhone

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Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

Starmap is ranked #18 of 34 in astronomy apps on Freedom251. It runs on iOS, macOS. There is a free plan.

Starmap plans and pricing

All plans

Starmap Free Free; no subscriptions No tier-locked catalogues · no in-app purchases star-map.fr · 9 Oct 2026

Compared on astronomy apps

Free plan: Yes
Offline access: Yes
Platform coverage: mobile
Telescope control: No
Mission tracking: No

Best Starmap alternatives

See all 20

Two bars NASA Eyes Free tier No. 1Free6.8 Two bars Celestia Free tier No. 2Free6.7 Two bars Solar System Scope Free tier No. 3Free6.7 Two bars Cosmic Watch Free tier No. 4$0.42/mo6.6 Two bars Night Sky Free tier No. 5Free6.6 Two bars Star Chart Free tier No. 6Free6.6

The record

Purpose: Starmap is an astronomy reference app made for visual observers and field use.
Live sky map: The sky chart follows the phone’s compass and orientation, with an arrow to guide users to objects.
Star catalogue: The app includes 2.5 million on-device stars and has a limiting magnitude of 15.
Deep sky catalogue: The app lists 24,000 on-device deep-sky objects, including 13,226 NGC/IC objects.
Telescope tools: Users can configure unlimited telescopes and eyepieces, and the app computes magnification and true field of view.
Solar data: Live NOAA SWPC data includes active regions, plage regions, F10.7 flux, GOES X-ray data, and Kp forecasts.
Astronomy integrations: The app connects to SIMBAD, NOAA SWPC, and the Minor Planet Center for live astronomy information.
Calendar: The feature list names iCal calendar integration.
Charts: Seasonal sky charts are generated for the current month and are free for personal and educational use with credit to Starmap.
Privacy: The app has no ads, analytics, accounts, in-app purchases, or tracking, and says location and calendar information stays on the device.
Live-data privacy: Requests to astronomy data providers include the device IP address and query, while the developer says it does not send a user’s name, account, or contact information.
Local data: Settings, saved locations, equipment, and recently viewed objects are stored locally on the device.
Support: The maker invites bug reports, suggestions, and field observations through a contact form and says it will reply as soon as possible.
Maker: The site identifies F. D.Author as a professional astronomer and sole developer.
Price from: Free

Where it ranks on Freedom251

Best Astronomy Apps in 2026#18 of 34

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Sources

star-map.fr· checked 9 Oct 2026
star-map.fr/privacy.php· checked 9 Oct 2026