# FtM vs Otter Curiosity

The clearest difference is in-app purchases: FtM at none against Otter Curiosity's 2. FtM also leads on iOS requirement (9.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Otter Curiosity sells 2 in-app purchases, starting at $7.99 per month. FtM asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | FtM | Otter Curiosity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 28 MB | 73 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jinan Liuli Culture Media Co., Ltd.](https://appshunter.io/developer/1579266873) | [Chang-Shen Wu](https://appshunter.io/developer/1687362208) |

## What reviewers say

### FtM

[App page](https://appshunter.io/ios/app/ftm/id1579268740)

**Features:** macOS Compatibility

**In-app purchases:** none


### Otter Curiosity

[App page](https://appshunter.io/ios/app/otter-curiosity/id6449002669)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Otter Member | $7.99 | per month |
| 好奇海獺貝殼 | $5.99 | one-time |


## Frequently asked questions

### Is FtM free?

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

### Is Otter Curiosity free?

Otter Curiosity is free to download, with in-app purchases available.

### Do FtM or Otter Curiosity have ads?

Neither FtM nor Otter Curiosity shows ads.

### Which is updated more often, FtM or Otter Curiosity?

FtM ships an update every 2 weeks, and Otter Curiosity every 2 weeks. Most recently, FtM was updated on October 25, 2026 and Otter Curiosity on October 25, 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.*