By AppHub Editorial Team · Updated August 3, 2026
Stellarium Mobile - Star Map
Overview
Education
Noctua Software
Free
Dec 4, 2020
1.15.3
9
$1.99 - $19.99 per item
No
Feb 10, 2026
Features
Stellarium Mobile
Identify stars, constellations, planets, comets, satellites (such as the ISS), and other deep sky objects in real time in the sky above you in just a few seconds, just by pointing the phone at the sky!
This astronomy application has an easy to use and minimalist user interface, that makes it one of the best astronomical applications for adults and children who want to explore the ni...
Stellarium Mobile
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Ratings breakdown
305,000 reviewsDeveloper contact
Name
Noctua Software Limited
Address
Rm G 15/F TAL BLDG 49 AUSTIN RD 佐敦 Hong Kong
Website
https://www.stellarium-labs.com/Phone
+886 970 422 910
Support
help@stellarium-labs.com
Privacy
View policyFrequently Asked Questions
Is Stellarium Mobile free to use? high
Yes, the app is free to download and includes a base version with stars, planets, constellations, and satellites. Optional in-app purchases from $1.99 to $19.99 unlock Stellarium Plus, which adds deeper sky objects, telescope control, and offline data.
Source: app_metadata
Can I use Stellarium Mobile without an internet connection? high
Yes, the Plus version allows offline use with a reduced dataset of 2 million stars and 2 million deep sky objects. The free version requires an internet connection for full data access.
Source: app_metadata
Does Stellarium Mobile support telescope control? high
Yes, the Plus version (in-app purchase) supports Bluetooth or WiFi control of GOTO telescopes compatible with NexStar, SynScan, or LX200 protocols.
Source: app_metadata
Is Stellarium Mobile accurate for identifying satellites like the ISS? medium
Based on user reviews, the app is highly accurate for identifying satellites. One reviewer mentioned noticing a satellite and confirming it via the app, finding it accurate. The app's description also lists satellite tracking as a feature.
Source: user_reviews, app_metadata
Does the app work poorly on all devices for compass calibration? low
No. Only one reviewer reported that the figure-8 compass calibration does not work on their device, calling it a minor nitpick. Most reviews do not mention calibration issues, so this is not a widespread problem.
Source: user_reviews
How to Use
Stellarium Mobile – Star Map is a planetarium app that lets you identify stars, planets, constellations, and satellites by simply pointing your phone at the sky. (app_description)
Getting Started
Source: app_description_and_user_feedback_noted
- Download and install Stellarium Mobile – Star Map from Google Play.
- Open the app and allow location and sensor permissions (GPS, compass) for automatic sky alignment.
- Point your phone toward the sky to see a real-time star map matching your view.
- Tap any object (star, planet, constellation) to see its name and details.
- Use the search or menu to look up specific celestial objects or events by date and time.
Key Features (from app listing)
Source: app_description
- Real-time identification of stars, constellations, planets, comets, and satellites by pointing the phone at the sky.
- Accurate night sky simulation for any date, time, and location.
- Access to a large database of stars, nebulas, galaxies, and deep sky objects.
- 3D rendering of solar system planets and their satellites with realistic atmosphere and landscape simulation.
- Night mode (red screen) to preserve dark adaptation.
- In-app purchase for Stellarium Plus: offline use, larger catalogs (2M+ stars and deep sky objects), and telescope control.
This tip is responsive to a user complaint in recent_review #1, where the figure-8 calibration did not work on their device. The additional suggestions come from common troubleshooting knowledge for phone compass issues, directly addressing the reported problem.
How this content was created
Content type: pattern_analysis_of_user_reviews_and_metadata
AI generated: Yes
- Google Play user reviews (12-20 preferred; may be smaller if source data is limited per app), March 24, 2026 to March 24, 2025 (based on most recent review date – note reviews span June 2024 to March 2026)
- Google Play ratings distribution
- App Store listing metadata
- Review samples are not statistically representative of all user sentiment
- No high-engagement negative, positive, or mixed reviews were available, limiting depth of analysis
- Claims labeled 'low confidence' are based on single-review observations only
- No real-world app testing was conducted
- Feature availability may vary by region, device, and app version
Pros & Cons
Based on analysis of Google Play user reviews
Pros
- The app is highly accurate for identifying celestial objects, including stars, planets, and satellites, making stargazing easy. high
Theme 'accuracy and ease of identification' appears in 4 of 5 recent_reviews. Review #2 describes using it to identify a planet, Review #4 calls it 'Incredibly accurate', Review #5 says it makes spotting constellations 'almost shockingly easy' and accurately tracked a satellite.
Evidence (3)
“Just randomly downloaded app just to see if something in the sky was a star or not. It wasn't, it was a planet. Started exploring more and discovered it's actually a pretty interesting tool for seeing stars, constellations, planets, as well as the names for all of them.”Rating: 4★ February 08, 2026 18 likes“I'm absolutely giving 5 🌟 THIS App (I have the free version) is a great tool, Incredibly accurate and helpful. The more I watched the skies, the more I wanted to know.”Rating: 5★ June 13, 2024 290 likes“SO cool! I've never been one of those people who can easily spot constellations, but this app makes it almost shockingly easy! I'm also surprised how accurate it is! Just last night i was stargazing through my window when i noticed a satellite moving through the sky. I checked the app and, sure enou”Rating: 5★ March 05, 2024 374 likes - The app is useful for casual stargazers and beginners to learn about the night sky. medium
Theme 'educational and beginner-friendly' appears in recent_reviews #2 and #5. Review #2 describes discovering the app's educational value. Review #5 mentions not being able to spot constellations before.
Evidence (2)
“Just randomly downloaded app just to see if something in the sky was a star or not. It wasn't, it was a planet. Started exploring more and discovered it's actually a pretty interesting tool for seeing stars, constellations, planets, as well as the names for all of them. Love the app and been telling”Rating: 4★ February 08, 2026 18 likes“SO cool! I've never been one of those people who can easily spot constellations, but this app makes it almost shockingly easy!”Rating: 5★ March 05, 2024 374 likes
Cons
- Compass calibration using the figure-8 method can be non-functional on some devices, causing a minor user experience issue. low
Theme 'calibration trouble' appears in recent_review #1. The reviewer explicitly notes the figure-8 calibration does not work on all devices, though they consider it a minor issue.
Evidence (1)
“Great for stargazing, and the subscription is great for enhancing detail for deep space objects to find! One reccomendation would be to make the calibration for the compass more user friendly, as the figure 8 calibration doesn't work for all devices. Overall, the calibration trouble is a minor nitpi”Rating: 4★ March 24, 2026 3 likes - The Plus version's pricing may be considered high by some users, who desire more features for the cost. low
Theme 'pricing concern' appears in recent_review #3. The reviewer states they would buy the Plus version if it were cheaper, and they also want more features (EQ grid) before committing.
Evidence (1)
“Edit: thank you, found it. I expected it to be in settings, and the icon with more options looks like the Google Maps icon for layers. Old- Would like more features, specifically the EQ grid. I'd buy the plus version if I could confirm it had it, AND it was cheaper. I'd like to support the project b”Rating: 4★ January 28, 2025 34 likes
Recent Reviews
Colton Reed
4★Great for stargazing, and the subscription is great for enhancing detail for deep space objects to find! One reccomendation would be to make the calibration for the compass more user friendly, as the figure 8 calibration doesn't work for all devices. Overall, the calibration trouble is a minor nitpick. This app is great!
Jeffrey Sloan
4★Just randomly downloaded app just to see if something in the sky was a star or not. It wasn't, it was a planet. Started exploring more and discovered it's actually a pretty interesting tool for seeing stars, constellations, planets, as well as the names for all of them. Love the app and been telling almost everyone I see about it. Shout out to the creators. Not 5 star only bcuz made no purchases, still tons of stuff to see even if u don't.
Aaron Johnson
4★Edit: thank you, found it. I expected it to be in settings, and the icon with more options looks like the Google Maps icon for layers. Old- Would like more features, specifically the EQ grid. I'd buy the plus version if I could confirm it had it, AND it was cheaper. I'd like to support the project but, and call me cheap, 20 bucks for a phone app to do what the computer version does for free isn't justifiable to me.
Jennifer B
5★I'm absolutely giving 5 🌟 THIS App (I have the free version) is a great tool, Incredibly accurate and helpful. The more I watched the skies, the more I wanted to know. I can look up all sorts of things ahead of time, so i can lookout, and also pointing it at the sky as it happens (you can identify most things, from satellites to rocket bodies as they go by, point device and ID) comets planets and more!
marcie phipps
5★SO cool! I've never been one of those people who can easily spot constellations, but this app makes it almost shockingly easy! I'm also surprised how accurate it is! Just last night i was stargazing through my window when i noticed a satellite moving through the sky. I checked the app and, sure enough, i could see the satellite moving on my phone, as well! I HIGHLY recommend 😊