# FastFlow vs 极简轻断食

The clearest difference is in-app purchases: 极简轻断食 at none against FastFlow's 2. 极简轻断食 also leads on ads (none vs shown). FastFlow's advantage is update cadence (every 5 days vs every 10 days) and iOS requirement (17.0 vs 26.2). On price and device support there is nothing between them.

Both are free to download. FastFlow sells 2 in-app purchases, starting at $0.99 per month. 极简轻断食 asks for nothing beyond the download.

FastFlow ships an update every 5 days, 极简轻断食 every 10 days. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | FastFlow | 极简轻断食 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 10 days |
| Size | 11 MB | 2 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [浩铭 顾](https://appshunter.io/developer/1873844063) | [珠海润速信息科技有限公司](https://appshunter.io/developer/957275035) |

## What reviewers say

### FastFlow

[App page](https://appshunter.io/ios/app/fastflow-fasting-timer/id6760942083)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastFlow Pro Monthly | $0.99 | per month |
| FastFlow Pro Yearly | $9.99 | per year |


### 极简轻断食

[App page](https://appshunter.io/ios/app/id6761102918)

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

**In-app purchases:** none


## Frequently asked questions

### Is FastFlow free?

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

### Is 极简轻断食 free?

极简轻断食 is free to download, with no in-app purchases.

### Do FastFlow or 极简轻断食 have ads?

FastFlow shows ads; 极简轻断食 does not.

### Which is updated more often, FastFlow or 极简轻断食?

FastFlow ships an update every 5 days, and 极简轻断食 every 10 days. Most recently, FastFlow was updated on September 16, 2026 and 极简轻断食 on August 27, 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.*