# Space Invasions vs Barth the Turtle

The clearest difference is update cadence: Barth the Turtle at every 4 months against Space Invasions's every 20 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Space Invasions ships an update every 20 months, Barth the Turtle every 4 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Space Invasions | Barth the Turtle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 4 months** |
| Size | 8 MB | 18 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [jj](https://appshunter.io/developer/426360938) | [Axovia](https://appshunter.io/developer/1215066242) |

## What reviewers say

### Space Invasions

[App page](https://appshunter.io/ios/app/space-invasions/id978962430)

**Features:** macOS Compatibility

**In-app purchases:** none


### Barth the Turtle

[App page](https://appshunter.io/ios/app/barth-the-turtle/id6443403004)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Invasions free?

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

### Is Barth the Turtle free?

Barth the Turtle is free to download, with no in-app purchases.

### Do Space Invasions or Barth the Turtle have ads?

Neither Space Invasions nor Barth the Turtle shows ads.

### Which is updated more often, Space Invasions or Barth the Turtle?

Space Invasions ships an update every 20 months, and Barth the Turtle every 4 months. Most recently, Space Invasions was updated on October 26, 2026 and Barth the Turtle on October 27, 2026.

---

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