# Alien Invader Escape vs Katmy

The clearest difference is in-app purchases: Alien Invader Escape at none against Katmy's 10. Katmy's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 18 months). On price and device support there is nothing between them.

Both are free to download. Katmy sells 10 one-off in-app purchases. Alien Invader Escape asks for nothing beyond the download.

Alien Invader Escape ships an update every 18 months, Katmy every 5 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Alien Invader Escape | Katmy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 5 weeks** |
| Size | 14 MB | 233 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tang Cho man](https://appshunter.io/developer/592719186) | [U8Space Sdn. Bhd.](https://appshunter.io/developer/1482236420) |

## What reviewers say

### Alien Invader Escape

[App page](https://appshunter.io/ios/app/alien-invader-escape/id858894874)

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

**In-app purchases:** none


### Katmy

[App page](https://appshunter.io/ios/app/katmy/id1526233789)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Discounted Medium Pack | $0.99 | one-time |
| Medium Pack | $1.99 | one-time |
| Discounted Big Pack | $1.99 | one-time |
| Big Pack | $2.99 | one-time |
| Discounted Bronze Pack | $2.99 | one-time |
| Bronze Pack | $3.99 | one-time |
| Silver Pack | $5.99 | one-time |
| Gold Pack | $9.99 | one-time |
| Crystal Pack | $16.99 | one-time |
| Diamond Pack | $22.99 | one-time |


## Frequently asked questions

### Is Alien Invader Escape free?

Alien Invader Escape is free to download, with no in-app purchases.

### Is Katmy free?

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

### Do Alien Invader Escape or Katmy have ads?

Alien Invader Escape shows ads; Katmy does not.

### Which is updated more often, Alien Invader Escape or Katmy?

Alien Invader Escape ships an update every 18 months, and Katmy every 5 weeks. Most recently, Alien Invader Escape was updated on October 12, 2026 and Katmy on October 18, 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.*