Astra: Habits and Stars
iOS app by Hanry Li. Productivity · Hanry Li
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.0
- Listing last refreshed
- 2026-09-09
View the original store listing
Store description excerpt
Astra is a habit tracker with a real sky in it. Pick up to five habits. Mark all of them on the same day and Astra lights one star in the patch of sky above the place you first opened the app. Miss a day and nothing is taken back. The stars you have already lit stay lit. The stars are real ones. Positions, brightnesses and colours come from the Yale Bright Star Catalogue, and a star's colour on the map is worked out from its measured colour index. Tap any star for its surface temperature, its spectral class, and how its size compares to the Sun. Where the catalogue's distance is not reliable, Astra says nothing rather than printing a number that is wrong. Constellations arrive nearest first and smallest first, so the early ones finish in a couple of days and the later ones take a couple of weeks. Keep everything for two months and that is sixty-one stars and around twenty completed figures. NO STREAK TO BREAK There is no streak counter. A number that resets to zero punishes you at the moment you are most likely to give up. The Log shows your longest run instead, which is a record you set rather than a thing you break, next to a month view and your consistency for each habit. ON YOUR HOME SCREEN The small widget shows the day's count and the star waiting. The medium widget marks a habit in one tap, without opening the app. ONE REMINDER A DAY At a time you pick, and never on a day you have already finished. FREE, AND PRIVATE Astra is free. There are no ads, no subscription, and no account to make. It contains no networking code at all, so nothing you record can leave your phone. The star catalogue ships inside the app, which is why the sky works with no connection.
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