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10+ Best Star Identification Apps Free to Download for iPhone (2026)

12 of 17 ranked · · how we rank

12 star identification apps on iPhone are free to download; 7 of them sell in-app purchases. Sky Guide is the best of them at S tier, rated 4.8 by 377,513 people. The order below is the same S to F ranking as the full list, with the apps that cost money to download removed.

  1. 1
    Sky GuideS#1 overall
    Free + IAP · ★ 4.8 · 377,513 ratings · score 99
    Identifies stars, constellations, planets and satellites held overhead, with AR overlays and ISS flyover alerts.
  2. 2
    Night SkyS#2 overall
    Free + IAP · ★ 4.7 · 497,429 ratings · score 98
    Identifies stars, planets, constellations and satellites overhead using an iPhone, iPad or Apple Watch, with AR views…
  3. 3
    Stellarium Mobile - Star MapS#3 overall
    Free + IAP · ★ 4.8 · 38,766 ratings · score 95
    Planetarium app that identifies stars, constellations, planets, comets and satellites by pointing the phone at the sky.
  4. 4
    Sky Tonight - Stargazing GuideS#4 overall
    Free + IAP · ★ 4.8 · 76,194 ratings · score 94
    Stargazing reference app that identifies sky objects, shows real-time sky maps, constellations, and astronomy events.
  5. 5
    Star Walk:Find Stars & PlanetsS#5 overall
    Free download · ★ 4.7 · 25,020 ratings · score 94
    Stargazing app that shows stars, planets, constellations and satellites in real time as you move your device.
  6. 6
    Star Walk 2 Plus: Live Sky MapS#6 overall
    Free + IAP · ★ 4.6 · 95,912 ratings · score 94
    Star Walk 2 Plus is a stargazing app that maps stars, planets and constellations in the sky shown on your device screen.
  7. 7
    Star Guide: Night Sky MapA#8 overall
    Free download · ★ 4.5 · 4,338 ratings · score 89
    Turns your phone into a real-time planetarium for identifying stars and planets and planning sky viewing times.
  8. 8
    Constellation Map mobileA#9 overall
    Free + IAP · ★ 4.7 · 4,603 ratings · score 87
    Uses the device camera direction to label stars, constellations and planets in the sky, with a separate solar system.
  9. 9
    OSR Star FinderA#12 overall
    Free download · ★ 4.6 · 4,834 ratings · score 83
    Free star-finding app that helps locate stars and constellations in the sky, with augmented reality and night modes.
  10. 10
    SkyView® LiteB#13 overall
    Free + IAP · ★ 4.5 · 18,798 ratings · score 80
    Uses the iPhone, iPad, or iPod camera to identify stars, constellations, satellites, and other objects in the sky.
  11. 11
    The Constellation Star FinderB#14 overall
    Free download · ★ 4.7 · 4,351 ratings · score 78
    Identifies constellations, stars, planets and satellites when you point your phone at the sky.
  12. 12
    Star ChartC#16 overall
    Free download · ★ 4.6 · 24,837 ratings · score 67
    Astronomy app that identifies stars, planets and constellations, with augmented reality mode on supported devices.

Questions people ask

Which star identification app that is free to download is best on iPhone?
Sky Guide, S tier, #1 overall in star identification. It is free to download, with in-app purchases.
Does a star identification app that is free to download reach S or A tier?
Yes, Sky Guide, Night Sky, Stellarium Mobile - Star Map, Sky Tonight - Stargazing Guide, Star Walk:Find Stars & Planets, Star Walk 2 Plus: Live Sky Map, Star Guide: Night Sky Map, Constellation Map mobile, OSR Star Finder.

See all 17 star identification apps ranked →