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Best Free Star App Viewer

187+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated May 2026

Out of 187+ free star app viewer apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Free Star App Viewer

Sky Guide#1

Sky Guide by Fifth Star Labs LLC

Star gaze constellation finder
Editor's Choice
🔍 Reference
4.8😊(26K ratings)
FreeIn-App Purchases
#8in Reference
Sky Guide screenshot 1
Sky Guide screenshot 2
Sky Guide screenshot 3
Sky Guide screenshot 4
Sky Guide screenshot 5
Sky Guide screenshot 6

Identify stars, constellations, planets, and satellites in real-time by holding your device overhead. Explore celestial bodies with AR overlays, track satellites like the ISS, and travel through time to view past and future astronomical events. Perfect for both novice and experienced stargazers.

What We Love

  • 🌟 Stunning visuals and graphics
  • 📚 Wealth of information on celestial objects
  • 🧭 Accurate and responsive compass/AR features
  • 🌌 Immersive stargazing experience

Room to Improve

  • 🧭 Occasional compass/location calibration issues
  • 💰 Subscription model limits access to some features
  • 🌍 Lack of support for certain regions/locations
Night Sky#2

Night Sky by iCandi Apps Ltd.

Guide to Stars,Comets,Meteors
Strong Contender
🔍 Reference
4.7😊(482K ratings)
FreeIn-App Purchases
#15in 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

Explore the cosmos with an AI-powered planetarium. Identify stars, planets, and satellites by pointing your device at the sky. Discover celestial objects in augmented reality and share your stargazing experiences with others.

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

Room to Improve

  • 💰 Frequent prompts to upgrade to premium subscription
  • 🔌 Concerns about high battery consumption
  • 🤔 Calibration and alignment issues with the AR features
Stellarium Mobile - Star Map#3

Stellarium Mobile - Star Map by Noctua Software Limited

Watch night sky, find stars
Worth Considering
📚 Education
4.8😊(36K ratings)
FreeIn-App Purchases
#68in Education
Stellarium Mobile - Star Map screenshot 1
Stellarium Mobile - Star Map screenshot 2
Stellarium Mobile - Star Map screenshot 3
Stellarium Mobile - Star Map screenshot 4
Stellarium Mobile - Star Map screenshot 5
Stellarium Mobile - Star Map screenshot 6

Explore the night sky with a real-time planetarium. Identify stars, planets, constellations, and satellites by simply pointing your phone. Offers detailed astronomical data and cultural constellation interpretations.

What We Love

  • 🌟 Fabulous star tracking
  • 🌌 Detailed night sky information
  • 🔭 Helpful for stargazing and astronomy
  • 👍 User-friendly interface

Room to Improve

  • 🐛 Occasional crashes or freezes
  • 🔍 Difficulty finding some objects
  • 🌓 Inaccurate moon/planet positions in daylight

More Free Star App Viewer apps to explore

4
Star Rover - Stargazing Guide
Star Rover - Stargazing Guide
Star Rover - Stargazing Guide
Explore Stars & Constellations
$1.99

Explore the night sky with this interactive planetarium. Identify stars, planets, and constellations by simply pointing your device. Discover celestial objects, view moon phases, and even simulate future or past sky events.

Real-time sky map updatesIdentify stars, planets, constellationsView moon phases and nebulae
📚 Education
(407)
paid
5
Star & Planet Finder
Star & Planet Finder
Star & Planet Finder
by Nir Alperovitch
Free

Discover celestial objects with this augmented reality sky guide. Simply select a planet or star, and follow the on-screen pointer to locate it in the night sky. Explore constellations, satellites, and detailed information about planets.

Augmented Reality displayCompass, GPS, accelerometer, camera, and clock integrationLocate planets, stars, constellations, and satellites
📚 Education
(1.8K)
free with in-app purchases
6
The Constellation Star Finder
The Constellation Star Finder
The Constellation Star Finder
Gazer & Sky Map
Free

Explore the night sky with this augmented reality app. Point your device to identify constellations, stars, planets, and other celestial objects. Access detailed information and daily astronomy news for a comprehensive stargazing experience.

Augmented Reality Sky MapIdentify constellations, stars, and planetsDetailed information on celestial objects
🎬 Entertainment
(4.2K)
subscription
7
Star Guide: Night Sky Map
Star Guide: Night Sky Map
Star Guide: Night Sky Map
Explore the Night Sky
Free

Transform your device into a real-time planetarium to explore the night sky. Identify stars and planets, and plan optimal viewing times. Experience celestial objects in 3D and preview future or past sky conditions from any location.

Real-time star and planet identificationAugmented Reality sky overlay3D celestial object visualization
📚 Education
(3.9K)
free with in-app purchases
8
Sky Live: Heavens Above Viewer
Sky Live: Heavens Above Viewer
Sky Live: Heavens Above Viewer
Watch Skies: Stargazing App
Free

Plan your stargazing adventures and capture stunning photos of the night sky. Get real-time weather, visibility scores, and a unique hourly stargazing index based on multiple criteria. Discover what planets, stars, and constellations are visible from your location.

Hourly stargazing indexWeather forecast integrationLight pollution data
📚 Education
(14K)
free with in-app purchases
9
Star Chart
Star Chart
Star Chart
by ESCAPE VELOCITY LIMITED
Free

Explore the cosmos with this augmented reality astronomy app. Point your device at the sky to identify stars, planets, and constellations in real-time. Discover celestial bodies and their positions, even traveling through time to view the universe's past and future.

Augmented reality sky identification3D simulation of the visible universeReal-time celestial object tracking
📚 Education
(25K)
free with in-app purchases
10
StarMap 3D+ Plus
StarMap 3D+ Plus
StarMap 3D+ Plus
Star Map, Constellation Finder
$2.99

Explore the cosmos with a portable star atlas. Identify planets, constellations, and deep sky objects using your device's sensors. Features detailed information and 3D visualizations for both beginners and advanced astronomers.

Real-time satellite tracking (ISS, Hubble)Extensive star and deep sky object databaseDetailed constellation information and lines
📚 Education
(6.7K)
free with in-app purchases
11
Night Sky Star Finder
Night Sky Star Finder
Night Sky Star Finder
Find Your Star
Free

Name a star and easily locate it in the night sky using an interactive finder. This app provides a personalized view of your local night sky, identifies constellations, and offers augmented reality features to help you find registered stars.

Locate registered stars by numberPersonalized night sky view based on locationAugmented Reality (AR) mode
📚 Education
(1)
free
12
Star Gazer -Nightsky & sky map
Star Gazer -Nightsky & sky map
Star Gazer -Nightsky & sky map
Skyview & star map,
Free

Explore the night sky with detailed constellation graphics and animations. Learn about their significance, history, and myths. This app offers an educational and entertaining way to view the cosmos.

Night sky observationConstellation graphics and animationsInformation on myths and history
📚 Education
(35)
free with in-app purchases
13
Star Gazer & Night Sky Map
Star Gazer & Night Sky Map
Star Gazer & Night Sky Map
Constellation Finder & Guide
Free

Identify stars, planets, and constellations by pointing your device at the sky. Learn astronomy with interactive guides and a dynamic sky map. No prior knowledge or telescope required.

Real-time star and constellation identificationPlanet discovery and trackingInteractive astronomy guides
📚 Education
(20)
free with in-app purchases
14
Star Tracker Lite-Live Sky Map
Star Tracker Lite-Live Sky Map
Star Tracker Lite-Live Sky Map
Night stars guide & tracker
Free

Explore the universe by pointing your device at the sky. Identify stars, constellations, and deep sky objects in real-time. Features offline data, a 3D compass in AR mode, and detailed graphics for an immersive stargazing experience.

Offline celestial dataIdentify stars, constellations, planetsAugmented reality compass
🔍 Reference
(2K)
free with in-app purchases
15
Stellar Tour - AR Stargazer
Stellar Tour - AR Stargazer
Stellar Tour - AR Stargazer
Astronomy: Night Sky Star Map
Free
$2.99 | 100% OFF

Explore the cosmos with an augmented reality stargazing app guided by an astrophysicist. Discover exoplanets, solar system bodies, and deep-sky objects with scientifically accurate narratives and detailed visuals.

Augmented reality stargazingAstrophysicist-guided toursDetailed exoplanet information
📚 Education
(1.7K)
free with in-app purchases
16
Satellite Tracker by Star Walk
Satellite Tracker by Star Walk
Satellite Tracker by Star Walk
View Satellites Live Sky Map
Free

Track satellites in real-time, including the ISS and Starlink. Get predictions for upcoming passes and set alerts. Explore satellite orbits and trajectories with various viewing modes.

Real-time satellite trackingSatellite flyby timerPass predictions
🔍 Reference
(69K)
free with in-app purchases
17
Live Sky
Live Sky
Live Sky
by Dapperfinch Inc.
Free

This astronomy app provides real-time celestial object coordinates, including planets, the Moon, Sun, and various stars and deep sky objects. It highlights objects currently visible and allows users to favorite frequently observed bodies. A daily summary widget is also available.

Live celestial object coordinatesVisibility indicator (above horizon)Detailed object information
🔍 Reference
(887)
free with in-app purchases
18
Co–Star Personalized Astrology
Co–Star Personalized Astrology
Co–Star Personalized Astrology
Horoscopes from the Void
Free

This app provides personalized daily horoscopes and compatibility readings based on NASA data and human astrologers. It helps users understand themselves and their relationships through astrological insights and offers premium features for deeper analysis and advice.

Personalized daily horoscopesFriend chart comparisonNatal chart learning
🌟 Lifestyle
(205K)
free with in-app purchases
19
EARTH 3D | Ultra real planet
EARTH 3D | Ultra real planet
EARTH 3D | Ultra real planet
Live wallpapers & screensaver
Free
$49.99 | 100% OFF

Experience a stunning, real-time rendered 3D Earth on your device. Explore detailed textures, atmospheric effects, and celestial bodies with dynamic lighting and reflections. Personalize your device with this visually immersive planetary display.

Real-time sun and moon positionHigh-quality earth texture with bumpingLocation display
🔧 Utilities
(6.2K)
free with in-app purchases
20
Star Map Tracker: Sky Journey
Star Map Tracker: Sky Journey
Star Map Tracker: Sky Journey
Night sky star gazer astro app
Free

Explore the night sky with this augmented reality stargazing app. Identify stars, constellations, planets, and galaxies in real-time. It provides detailed information and helps you locate celestial objects.

Augmented reality celestial body viewIdentification of over 3,000 starsDepiction of 88 constellations
📚 Education
(0)
free with in-app purchases