# Alien Slime vs Alien Flight

The clearest difference is price: Alien Flight at Free against Alien Slime's $0.99. Alien Flight also leads on update cadence (every 7 months vs every 14 months) and iOS requirement (12.0 vs 16.0). Alien Slime's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Alien Flight is free to download; Alien Slime costs $0.99 up front. Alien Flight sells 2 one-off in-app purchases. Alien Slime asks for nothing beyond the download.

Alien Slime ships an update every 14 months, Alien Flight every 7 months. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Alien Slime | Alien Flight |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 7 months** |
| Size | 13 MB | 16 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [JS Digital Productions, Inc.](https://appshunter.io/developer/1012108950) | [Tristan Nottelman](https://appshunter.io/developer/1187705519) |

## What reviewers say

### Alien Slime

[App page](https://appshunter.io/ios/app/alien-slime/id1275567537)

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

**In-app purchases:** none


### Alien Flight

[App page](https://appshunter.io/ios/app/alien-flight/id1434668246)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Coins | $0.99 | one-time |
| 250 Coins | $1.99 | one-time |


## Frequently asked questions

### Is Alien Slime free?

Alien Slime costs $0.99, with no in-app purchases.

### Is Alien Flight free?

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

### Do Alien Slime or Alien Flight have ads?

Alien Flight shows ads; Alien Slime does not.

### Which is updated more often, Alien Slime or Alien Flight?

Alien Slime ships an update every 14 months, and Alien Flight every 7 months. Most recently, Alien Slime was updated on September 25, 2026 and Alien Flight on October 12, 2026.

---

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