# Alien Planets vs Learn About Stars

The clearest difference is price: Learn About Stars at Free against Alien Planets's $9.99. Learn About Stars also leads on update cadence (every 3 weeks vs every 24 months) and iOS requirement (15.1 vs 27.0). Alien Planets's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Learn About Stars is free to download; Alien Planets costs $9.99 up front. Learn About Stars sells 1 one-off in-app purchase. Alien Planets asks for nothing beyond the download.

Alien Planets ships an update every 24 months, Learn About Stars every 3 weeks. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Alien Planets | Learn About Stars |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Size | 51 MB | 48 MB |
| Requires iOS | 27.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jose Leal](https://appshunter.io/developer/1441468562) | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) |

## What reviewers say

### Alien Planets

[App page](https://appshunter.io/ios/app/alien-planets/id1478121868)

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

**In-app purchases:** none


### Learn About Stars

[App page](https://appshunter.io/ios/app/learn-about-stars/id6446816058)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is Alien Planets free?

Alien Planets costs $9.99, with no in-app purchases.

### Is Learn About Stars free?

Learn About Stars is free to download, with in-app purchases available.

### Do Alien Planets or Learn About Stars have ads?

Neither Alien Planets nor Learn About Stars shows ads.

### Which is updated more often, Alien Planets or Learn About Stars?

Alien Planets ships an update every 24 months, and Learn About Stars every 3 weeks. Most recently, Alien Planets was updated on October 19, 2026 and Learn About Stars on October 7, 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.*