# ストレスフリィィイーー!! vs Alien Whack Attack

The clearest difference is update cadence: ストレスフリィィイーー!! at every 2 days against Alien Whack Attack's every 5 weeks. Alien Whack Attack's advantage is iOS requirement (12.0 vs 16.2). 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.

ストレスフリィィイーー!! ships an update every 2 days, Alien Whack Attack every 5 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ストレスフリィィイーー!! | Alien Whack Attack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Size | 6 MB | 105 MB |
| Requires iOS | 16.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Saki Inoue](https://appshunter.io/developer/1557109246) | [Shinya Okubo](https://appshunter.io/developer/1831635146) |

## What reviewers say

### ストレスフリィィイーー!!

[App page](https://appshunter.io/ios/app/id6448691921)

**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 ストレスフリィィイーー!! free?

ストレスフリィィイーー!! 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 ストレスフリィィイーー!! or Alien Whack Attack have ads?

Both ストレスフリィィイーー!! and Alien Whack Attack show ads.

### Which is updated more often, ストレスフリィィイーー!! or Alien Whack Attack?

ストレスフリィィイーー!! ships an update every 2 days, and Alien Whack Attack every 5 weeks. Most recently, ストレスフリィィイーー!! was updated on October 30, 2026 and Alien Whack Attack on October 28, 2026.

---

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