Comparison

Stellarium Mobile vs Kaksha School

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stellarium Mobile

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.

Highlights
  • Real-time sky simulation
  • Identify stars, planets, satellites
  • Constellation shapes and illustrations
  • Deep sky object catalog
  • Night mode for eye comfort
  • Telescope control (Plus)
Features
Currently charting
Read full description

Stellarium Mobile is a planetarium app that shows exactly what you see when you look up at the stars. 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 night sky. Stellarium Mobile features: • View an accurate night sky simulation of stars and planets for any date, time and location. • Dive in a collection of many stars, nebulas, galaxies, star clusters and other deep sky objects. • Zoom on realistic Milky Way and Deep Sky Objects images. • Discover how people living in other regions of the planet see the stars by selecting the shapes and illustrations of the constellations for many sky cultures. • Track artificial satellites, including the International Space Station. • Simulate landscape and atmosphere with realistic sunrise, sunset and atmosphere refraction. • Discover 3D rendering of the major solar system planets and their satellites. • Observe the sky in night mode (red) to preserve your eyes adaptation to darkness. Stellarium Mobile contains in-app purchases allowing to upgrade to Stellarium Plus. With this upgrade, the app will display objects as faint as magnitude 22 (versus magnitude 8 in the base version) and enable advanced observing features. Stellarium Plus features (unlocked with in-app purchase): • Reach the limit of knowledge by diving in a massive collection of stars, nebulas, galaxies, star clusters and other deep sky objects:   - All known stars: Gaia DR2 catalog of over 1.69 billion stars   - All known planets, natural satellites and comets, and many other minor solar system objects (10k asteroids)   - Most known deep sky objects: a combined catalog of over 2 million nebulas and galaxies • Zoom almost without limits on high resolution images of deep sky objects or planetary surfaces. • Observe in the field, even without internet connection, with a "reduced" set of data: 2 million stars, 2 million Deep Sky Objects, 10k asteroids. • Control your telescope through WIFI: drive any GOTO telescope compatible with NexStar, SynScan or LX200 protocols. • Prepare your observing sessions using the advanced observation tools, to predict a celestial object observability and transit times. Stellarium Mobile is made by the original creator of Stellarium, the well known open source planetarium and one of the best astronomy applications on Desktop PC. Your can unlock the full features using either a one time payment or a subscription. See In-App Purchase section for the subscription price available in your country. Payment will be charged to your iTunes account. Your subscription will automatically renew unless cancelled 24 hours prior to the end of the current period. Auto renewal may be turned off at any time by going to your account settings after purchases. Terms of service: https://stellarium-labs.com/stellarium-mobile-plus/stellarium-mobile-terms-of-use Privacy policy: https://www.stellarium-labs.com/privacy-policy-for-stellarium-mobile

About

Kaksha School

Features
Read full description

Kaksha School is a simple, reliable school companion app for students, parents, and staff. With Kaksha School you can: View attendance and daily updates Track homework and classwork Check timetable and upcoming exams Get school notices and announcements View fee details and receipts (if enabled by your school) Stay informed with fast, secure access Designed for clarity and speed The app is optimized for quick loading, easy navigation, and a clean interface so you can find what you need in seconds. Important Kaksha School works with participating schools. Features may vary depending on your school’s setup and permissions.

Screenshots

Stellarium Mobile4 screens
Kaksha School4 screens

Verdict

The call

The clearest difference is in-app purchases: Kaksha School at none against Stellarium Mobile's 2. Kaksha School also leads on update cadence (every 3 days vs every 5 weeks) and iOS requirement (15.1 vs 17). Stellarium Mobile's advantage is chart position (#43 vs unranked). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stellarium Mobile sells 2 in-app purchases, starting at $1.99 per month. Kaksha School asks for nothing beyond the download.

UpkeepUpdate frequency

Stellarium Mobile ships an update every 5 weeks, Kaksha School every 3 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 7 level
Stellarium Mobile versus Kaksha School: the parameters behind the verdict, then further details
ParameterStellarium MobileKaksha School
PriceFreeFree
Rating4.8 (40K ratings) — better—
Positive reviews84.4% of reviews—
Number of ratings40K — better—
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#43 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS1715.1 — better
Further details — not scored
Size456 MB38 MB
Age rating4+17+
DeveloperNoctua Software LtdMargo Logistics Private Limited

Bugs and requests

Stellarium Mobile

Reported bugs

3 issues
  • Compass not working properly
  • Favorites list disappearing
  • Inconsistent performance on different devices

Requested features

5 requests
  • Notifications for astronomical events
  • More customization options
  • Integration with camera for AR overlay
  • Better support for telescopes and mounts
  • Improved search and navigation

Kaksha School

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Stellarium Mobile

Subscriptions1
  • Stellarium PLUS7 Days trial$1.991 Month
One-time1
  • Stellarium PLUS$18.99
None

Kaksha School

No in-app purchases

Questions

Is Stellarium Mobile free?
Stellarium Mobile is free to download, with in-app purchases available.
Is Kaksha School free?
Kaksha School is free to download, with no in-app purchases.
Do Stellarium Mobile or Kaksha School have ads?
Neither Stellarium Mobile nor Kaksha School shows ads.
Which is updated more often, Stellarium Mobile or Kaksha School?
Stellarium Mobile ships an update every 5 weeks, and Kaksha School every 3 days. Most recently, Stellarium Mobile was updated on November 8, 2026 and Kaksha School on October 31, 2026.

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