Best Free Astronomy Apps

249+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated November 2026

If you already know Sky Tonight, this is the deeper bench. 249+ free astronomy apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.

Compare top Free Astronomy Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sky Tonight - Stargazing GuideSky Tonight - Stargazing GuideFree4.8★ (77K)YesYesNov 2026
2Night SkyNight SkyFree4.7★ (499K)NoYesNov 2026
3Star Walk:Find Stars & PlanetsStar Walk:Find Stars & PlanetsFree4.7★ (25K)NoYesNov 2026
4Star ChartStar ChartFree4.6★ (25K)NoYesNov 2026
5Stellarium Mobile - Star MapStellarium Mobile - Star MapFree4.8★ (40K)NoYesNov 2026
6SkyView® LiteSkyView® LiteFree4.5★ (19K)YesYesNov 2026
7Sky GuideSky GuideFree4.8★ (380K)NoYesNov 2026
8PlanetsPlanetsFree4.5★ (982)NoNoNov 2026

Top Picks for Free Astronomy Apps

Sky Tonight - Stargazing Guide#1

Sky Tonight - Stargazing Guide by Vito Technology Inc.

Star Constellation Finder App
Editor's Choice
🔍 Reference
4.8😊(77K ratings)
FreeAdsIn-App Purchases
#81in Reference
Sky Tonight - Stargazing Guide screenshot 1
Sky Tonight - Stargazing Guide screenshot 2
Sky Tonight - Stargazing Guide screenshot 3
Sky Tonight - Stargazing Guide screenshot 4
Sky Tonight - Stargazing Guide screenshot 5
Sky Tonight - Stargazing Guide screenshot 6

Explore the night sky with this astronomy app. Identify celestial objects, discover upcoming astronomical events, and track their positions. Customize your view, set reminders, and access detailed information for a personalized stargazing experience.

What We Love

  • 🚀 Great app for finding new things
  • 🌟 Amazing and accurate
  • 🔭 Helpful for learning about the night sky
  • 🗓️ Provides calendar of sky events
  • 🌍 Shows satellites and planets
  • 🌌 Realistic visuals of space
  • 👍 Easy to use and navigate
  • 🤩 Addictive and fascinating

Room to Improve

  • 🔍 Difficult to calibrate and use
  • 📢 Too many intrusive ads
  • 💰 Paywall for many features
  • 🔔 Confusing/unnecessary notifications
  • 🧭 Compass/location issues
Night Sky#2

Night Sky by iCandi Apps Ltd.

Guide to Stars,Comets,Meteors
Strong Contender
🔍 Reference
4.7😊(499K ratings)
FreeIn-App Purchases
#21in Reference
Night Sky screenshot 1
Night Sky screenshot 2
Night Sky screenshot 3
Night Sky screenshot 4
Night Sky screenshot 5
Night Sky screenshot 6

Identify stars, planets, and constellations by pointing your device at the sky. Explore celestial objects in augmented reality and learn about space with an AI super astronomer. Share stargazing experiences with friends and family.

What We Love

  • 🌟 Excellent app for stargazing and learning about the night sky
  • 🔭 Detailed information on celestial objects, satellites, and space events
  • 🌍 Accurate mapping of the sky to real-world locations
  • 🎨 Beautiful visuals and animations
  • 🔍 Helpful for identifying stars, planets, and constellations
  • 🌌 Impressive augmented reality features
  • 🔍 Useful for amateur astronomers and space enthusiasts

Room to Improve

  • 💰 Frequent prompts to upgrade to premium subscription
  • 🔌 Concerns about high battery consumption
  • 🤔 Calibration and alignment issues with the AR features
  • 🤯 Overwhelming amount of information and features for casual users
  • 🐛 Occasional crashes and glitches reported
Star Walk:Find Stars & Planets#3

Star Walk:Find Stars & Planets by Vito Technology Inc.

Night Sky Guide - Star Map AR
Worth Considering
📚 Education
4.7😐(25K ratings)
FreeIn-App Purchases
Star Walk:Find Stars & Planets screenshot 1
Star Walk:Find Stars & Planets screenshot 2
Star Walk:Find Stars & Planets screenshot 3
Star Walk:Find Stars & Planets screenshot 4
Star Walk:Find Stars & Planets screenshot 5
Star Walk:Find Stars & Planets screenshot 6

Explore the night sky with an interactive guide that identifies stars, planets, and constellations in real-time using augmented reality. Discover over 200,000 celestial bodies with detailed information and track astronomical events.

What We Love

  • 🌌 Beautiful, so useful. So many options.
  • 🔭 Great app for an amateur astronomer
  • 🌟 Amazing, so informative and easy to navigate
  • 🌎 Awesome app to learn about the night sky
  • ⭐ Incredible app, love the features and customization

Room to Improve

  • 💰 Too many ads, can't use without subscribing
  • 🤖 AR feature is hard to activate and use
  • 🧭 Compass and direction tracking issues
  • 🔍 Difficult to find and identify objects in the sky
  • 🔌 Subscription model removed previously free features

More Free Astronomy Apps apps to explore

FAQ about Free Astronomy Apps

What are the best free astronomy apps for iPhone?
Sky Tonight - Stargazing Guide tops our free astronomy apps ranking as of November 2026, with a 4.8-star average from 77K App Store ratings, and it's free to download.
Sky Tonight - Stargazing Guide shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 249+ free astronomy apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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