# 168 Fasting vs FastFlow

The clearest difference is ads: 168 Fasting at none against FastFlow's shown. 168 Fasting also leads on iOS requirement (11.0 vs 17.0). FastFlow's advantage is update cadence (every 5 days vs every 15 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 168 Fasting sells 3 in-app purchases, starting at $3.99 per month and FastFlow sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

168 Fasting ships an update every 15 months, FastFlow every 5 days. The most recent releases landed on June 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 168 Fasting | FastFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/168-fasting-fasting-and-tracker/id6451101538/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 56 MB | 11 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Laigang Wang](https://appshunter.io/developer/1696563453) | [浩铭 顾](https://appshunter.io/developer/1873844063) |

## What reviewers say

### 168 Fasting

[App page](https://appshunter.io/ios/app/168-fasting-fasting-and-tracker/id6451101538)

This app helps users implement intermittent fasting scientifically and sustainably for health improvement and weight loss. It tracks fasting times, offers various fasting protocols, and monitors water intake and weight changes with clear data visualization.

**Highlights:** Fasting time tracking and calculation, Multiple fasting protocol options (12:12, 14:10, 16:8), Water intake tracking and reminders, Weight change monitoring, Intuitive charts and reports, Customizable fasting and eating windows

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP | $3.99 | per month |
| Quarterly VIP | $6.99 | per 3 months |
| Yearly VIP | $12.99 | per year |


### 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 |


## Frequently asked questions

### Is 168 Fasting free?

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

### Is FastFlow free?

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

### Do 168 Fasting or FastFlow have ads?

FastFlow shows ads; 168 Fasting does not.

### Which is updated more often, 168 Fasting or FastFlow?

168 Fasting ships an update every 15 months, and FastFlow every 5 days. Most recently, 168 Fasting was updated on June 1, 2026 and FastFlow on September 16, 2026.

---

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