# Whose Legs vs 古生代生物あつめ

The clearest difference is ads: 古生代生物あつめ at none against Whose Legs's shown. 古生代生物あつめ also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, 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.

Whose Legs ships an update every 2 months, 古生代生物あつめ every 3 months. The most recent releases landed on November 13, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Whose Legs | 古生代生物あつめ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 165 MB | 137 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harumi Sagawa](https://appshunter.io/developer/1454250246) | [ViRD](https://appshunter.io/developer/1156018889) |

## What reviewers say

### Whose Legs

[App page](https://appshunter.io/ios/app/whose-legs/id1465352189)

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

**In-app purchases:** none


### 古生代生物あつめ

[App page](https://appshunter.io/ios/app/id6504822418)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Whose Legs free?

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

### Is 古生代生物あつめ free?

古生代生物あつめ is free to download, with no in-app purchases.

### Do Whose Legs or 古生代生物あつめ have ads?

Whose Legs shows ads; 古生代生物あつめ does not.

### Which is updated more often, Whose Legs or 古生代生物あつめ?

Whose Legs ships an update every 2 months, and 古生代生物あつめ every 3 months. Most recently, Whose Legs was updated on November 13, 2026 and 古生代生物あつめ on November 4, 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.*