# FastFox vs Yorisou

The clearest difference is ads: Yorisou at none against FastFox's shown. Yorisou also leads on update cadence (every 6 days vs every 2 months). FastFox's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. FastFox sells 1 one-off in-app purchase and Yorisou sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

FastFox ships an update every 2 months, Yorisou every 6 days. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | FastFox | Yorisou |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 51 MB | 10 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [MyQuietSpot Inc.](https://appshunter.io/developer/1841316087) | [Starcrown Inc](https://appshunter.io/developer/1082624152) |

## What reviewers say

### FastFox

[App page](https://appshunter.io/ios/app/fastfox-intermittent-fasting/id6761245094)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastFox Pro | $14.99 | one-time |


### Yorisou

[App page](https://appshunter.io/ios/app/yorisou-cycle-sharing/id6764739839)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $1.99 | per 7 days |
| Yearly Pro | $29.99 | per year |


## Frequently asked questions

### Is FastFox free?

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

### Is Yorisou free?

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

### Do FastFox or Yorisou have ads?

FastFox shows ads; Yorisou does not.

### Which is updated more often, FastFox or Yorisou?

FastFox ships an update every 2 months, and Yorisou every 6 days. Most recently, FastFox was updated on September 24, 2026 and Yorisou on September 19, 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.*