Star Chart vs Constellation Map mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Star Chart
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 identification
- 3D simulation of the visible universe
- Real-time celestial object tracking
- Time shift to view past/future sky
- Explore planets, moons, and sun
- View constellations and deep sky objects
- Detailed object information
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*** Star Chart is now FREE! *** The top educational & augmented reality astronomy app - download and find out why over 20 million people use Star Chart! You can now have a virtual star chart in your pocket. Look through the eyes of your iPhone or iPad* to see a high-tech window into the whole visible universe. All you have to do is point your AR enabled device* at the sky and Star Chart will tell you exactly what you are looking at. Using state of the art GPS technology, an accurate 3D simulation of the visible universe, and a great deal of technical wizardry, Star Chart calculates – in real time - the current location of every star, planet and moon visible from Earth and shows you precisely where they are; even in broad daylight! Want to know what that bright star is called? Point your device* at it – you might just find out it’s a planet! Want to know what the night sky looks like to people on the other side of the earth? Well just point your device down! Want to know where your star sign is in the sky? Star Chart will tell you all this and more. Star Charts features include: - Just point and view. When you hold your device up to the sky, Star Chart will automatically start tracking your movements to match the sky *. - Alternatively, look around the sky using finger gestures – perfect for armchair astronomers! - In a single app of less than 30MB, Star Chart dynamically scales its visuals and capabilities across all iOS devices to meet the high end capabilities of a retina display iPad while also running smoothly on the earliest iPhones and iPods. - Accurately depicts all the visible stars of the northern and southern hemispheres - a total of approximately 120,000 stars! - Fly to and explore all the planets of the solar system, their moons and the sun all rendered in beautiful 3D with state of the art visual effects. - Using the powerful Time Shift feature, simply tap the time button and smoothly shift up to 10,000 years forward or backward in time. - Displays all 88 constellations, with constellation imagery based on the beautiful artwork by 17th century astronomer Johannes Hevelius. - Includes the complete Messier catalogue of 110 exotic deep sky objects. - Tap on anything in the sky and get the facts on what you are looking at, including distance and brightness. - Very powerful zoom function, lets you view the sky in extra detail, using intuitive finger gestures. - Fully configurable. Star Chart displays only the sky objects that you are interested in. - Allows you to view the sky underneath the horizon. So now you can see where the sun is, even at night! - Manually set your location to find out what the sky looks like from anywhere in the world. - Supports dynamic device orientation viewing. Allows you to view the night sky whilst holding your iPhone/iPad* at any angle. So point your iPhone/iPad* at the sky and see what's out there! ------------ * Augmented Reality mode is available on devices that include a built-in compass. Manual scrolling is supported on all other devices. ------------ Star Chart is published by Escape Velocity Ltd and developed by Escapist Games Ltd. We update Star Chart regularly, so please send us your feedback and feature requests to starchart@escapistgames.com. And thanks for all your feedback so far! Like us on Facebook: www.facebook.com/starchart Follow Star Chart on Twitter: StarChartApp
Constellation Map mobile
Explore the night sky by pointing your device upwards. Identify stars, constellations, and planets with detailed information. View celestial bodies below the horizon and track planetary orbits.
- Identify stars, constellations, and planets
- View celestial bodies below the horizon
- Track planetary orbits
- Display over 100 bright stars and objects
- Zoom and pan with touch gestures
- Toggle display of constellation lines and names
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Simply point your device towards the sky and this application will display the names of the stars, constellations and planets. You can check the orbital position of the planet in the solar system on a separate screen. You can also display stars below the horizon. You can display the names of about 100 bright stars, constellations, ecliptic, celestial equator, Deep Sky Objects, ISS, Celestial pole, and so on. You can enlarge or reduce the display by spreading or narrowing (pinch operation) with two fingers. Toggle display / non-display of constellation line, name etc. with double touch.
Screenshots
Verdict
The clearest difference is ads: Star Chart at none against Constellation Map mobile's shown. Star Chart also leads on ratings volume (25K vs 4.6K) and iOS requirement (7.0 vs 13.0). On price, rating, review sentiment and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Star Chart sells 7 one-off in-app purchases and Constellation Map mobile sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for Star Chart against 4.7 for Constellation Map mobile. That said, the two scores are not equally well evidenced: Star Chart has 25K ratings behind it against 4.6K, so its average is the more settled of the two. Written reviews are what separate them: 85% of Star Chart's written reviews are positive against 86% of Constellation Map mobile's.
Star Chart ships an update fortnightly, Constellation Map mobile every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | Star Chart | Constellation Map mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (25K ratings) | 4.7 (4.6K ratings) — better |
| Positive reviews | 85.0% of reviews | 86.4% of reviews — better |
| Number of ratings | 25K — better | 4.6K |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 28 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | ESCAPE VELOCITY LIMITED | siranet GK |
Customer experience
Star Chart
Constellation Map mobile
User reviews
Star Chart
From 25K App Store ratingsWhat we love
- 💫 Impressive visuals
- 🌌 Comprehensive celestial information
- 🔍 Helpful for learning constellations
- 🌍 Accurate location tracking
- 🌠 Enjoyable stargazing experience
Room to improve
- 🐛 Frequent crashes and bugs
- ⚠️ Outdated and unsupported
- 💰 Expensive in-app purchases
- 🗺️ Inaccurate mapping and calibration
- 🔍 Missing key celestial objects
Constellation Map mobile
From 4.6K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Accurate star/planet mapping
- 💡 Helpful for beginners and experts
- 🌟 Great for stargazing and astrophotography
- 🌙 Useful moon phase and solar orbit information
Room to improve
- 🐛 Alignment/calibration issues
- 🔀 Reversed/incorrect orientation
- 🔍 Difficulty locating specific celestial objects
- 💻 Compatibility problems on some devices
Bugs and requests
Star Chart
Reported bugs
5 issues- App crashes on launch
- Purchased upgrades not working
- Incorrect positioning of celestial objects
- GPS location not detected properly
- Scrolling and navigation issues
Requested features
5 requests- Update app with latest celestial objects
- Improve stability and reduce crashes
- Offer more affordable in-app purchases
- Enhance mapping and calibration accuracy
- Add search functionality for specific stars/planets
Constellation Map mobile
Reported bugs
3 issues- App crashes on opening
- Incorrect positioning of sun, moon, and planets
- Constellation names disappearing or not displaying properly
Requested features
4 requests- Add option to view constellations from inside the celestial sphere
- Improve search functionality to easily find planets, stars, and galaxies
- Provide more detailed information and descriptions for celestial objects
- Add ability to calibrate the app to match the actual sky view
In-app purchases
Star Chart
- Comets$2.99
- Meteor Showers$4.99
- Extended Solar System$4.99
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- Enhanced Constellations$4.99
- Satellites$4.99
- Extended Star Catalog$9.99
- Enhanced Messier Catalog$9.99
Constellation Map mobile
- Remove ads 1 month$1.991 Month
Questions
Is Star Chart free?
Is Constellation Map mobile free?
Which has better reviews, Star Chart or Constellation Map mobile?
Do Star Chart or Constellation Map mobile have ads?
Which is updated more often, Star Chart or Constellation Map mobile?
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