# Jo vs Alien Whack Attack

The clearest difference is update cadence: Jo at every 11 days against Alien Whack Attack's every 5 weeks. 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.

Jo ships an update every 11 days, Alien Whack Attack every 5 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Jo | Alien Whack Attack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 5 weeks |
| Size | 129 MB | 105 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seima Nakamoto](https://appshunter.io/developer/1780059847) | [Shinya Okubo](https://appshunter.io/developer/1831635146) |

## What reviewers say

### Jo

[App page](https://appshunter.io/ios/app/jo-mon-shooting/id6739760544)

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

**In-app purchases:** none


### Alien Whack Attack

[App page](https://appshunter.io/ios/app/alien-whack-attack/id6749657163)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jo free?

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

### Is Alien Whack Attack free?

Alien Whack Attack is free to download, with no in-app purchases.

### Do Jo or Alien Whack Attack have ads?

Both Jo and Alien Whack Attack show ads.

### Which is updated more often, Jo or Alien Whack Attack?

Jo ships an update every 11 days, and Alien Whack Attack every 5 weeks. Most recently, Jo was updated on October 5, 2026 and Alien Whack Attack on October 2, 2026.

---

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