# Stellarium Mobile vs SKUL

The clearest difference is in-app purchases: SKUL at none against Stellarium Mobile's 2. SKUL also leads on iOS requirement (15.0 vs 17). Stellarium Mobile's advantage is ratings volume (39K vs 1) and chart position (#53 vs unranked). On price, rating, update cadence and ads there is nothing between them.

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

SKUL holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Stellarium Mobile has 39K ratings behind it against 1, so its average is the more settled of the two.

Stellarium Mobile ships an update every 5 weeks, SKUL every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stellarium Mobile | SKUL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (39K ratings)](https://appshunter.io/ios/app/stellarium-mobile-star-map/id1458716890/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skul/id1638873437/reviews)** |
| Number of ratings | **39K** | 1 |
| Positive reviews | 84.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#53** | — |
| Size | 456 MB | 9 MB |
| Requires iOS | 17 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Noctua Software Ltd](https://appshunter.io/developer/629435881) | [Interia.pl sp. z o.o.](https://appshunter.io/developer/1888435067) |

## What reviewers say

### Stellarium Mobile

[App page](https://appshunter.io/ios/app/stellarium-mobile-star-map/id1458716890)

**Currently charting:** #53 Top Free · Education (US App Store)

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:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stellarium PLUS | $1.99 | per month |
| Stellarium PLUS | $18.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🔍 Difficulty finding some objects
- 🌓 Inaccurate moon/planet positions in daylight
- 🔧 Calibration issues with compass
- 💰 Paid version may not justify the cost

**Reported bugs**

- Compass not working properly
- Favorites list disappearing
- Inconsistent performance on different devices

**Requested features**

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


### SKUL

[App page](https://appshunter.io/ios/app/skul/id1638873437)

Access verified solutions and explanations for homework assignments from textbooks and workbooks for grades 4-8 and high school. Covers subjects like math, chemistry, and Polish, with practice exams also available. It's a free, ad-free resource to help students understand and verify their homework.

**Highlights:** Verified homework solutions, Teacher-prepared explanations, Covers grades 4-8 and high school, Subjects: Math, Chemistry, Polish, History, Biology, Physics, Geography, Nature, WOS, Practice exams for Matura and 8th grade, Ad-free and no account required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stellarium Mobile free?

Stellarium Mobile is free to download, with in-app purchases available.

### Is SKUL free?

SKUL is free to download, with no in-app purchases.

### Which has better reviews, Stellarium Mobile or SKUL?

SKUL is rated higher. Stellarium Mobile averages 4.8 out of 5 from 39K ratings, while SKUL averages 5.0 from 1 ratings.

### Do Stellarium Mobile or SKUL have ads?

Neither Stellarium Mobile nor SKUL shows ads.

### Which is updated more often, Stellarium Mobile or SKUL?

Stellarium Mobile ships an update every 5 weeks, and SKUL every 2 months. Most recently, Stellarium Mobile was updated on October 26, 2026 and SKUL on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*