# Fastory vs Onefast

The clearest difference is update cadence: Onefast at every 2 days against Fastory's every 9 days. Fastory's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Fastory sells 2 in-app purchases, starting at $6.99 per month and Onefast sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Fastory ships an update every 9 days, Onefast every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Fastory | Onefast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fastory-intermittent-fasting/id6775716410/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Phonthip Satthabun](https://appshunter.io/developer/1895035730) | [Nguyen Dinh Chung](https://appshunter.io/developer/6805296065) |

## What reviewers say

### Fastory

[App page](https://appshunter.io/ios/app/fastory-intermittent-fasting/id6775716410)

This app offers personalized intermittent fasting guidance with an AI coach that analyzes your health data. It provides tailored insights, progress tracking, and flexible fasting timers to help you build healthy habits. Integrates with Apple Health and offers convenient widgets for at-a-glance updates.

**Highlights:** Personal AI Coach, AI insights after each fast, Flexible fasting timer, Weight & BMI tracking, Daily journal, Apple Health integration, Home Screen widgets

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fastory Premium Monthly | $6.99 | per month |
| Fastory Premium Annual | $39.99 | per year |


### Onefast

[App page](https://appshunter.io/ios/app/onefast-fasting-timer/id6810987516)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onefast Pro (Yearly) | $9.99 | per year |
| Onefast Pro (Lifetime) | $19.99 | one-time |


## Frequently asked questions

### Is Fastory free?

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

### Is Onefast free?

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

### Do Fastory or Onefast have ads?

Neither Fastory nor Onefast shows ads.

### Which is updated more often, Fastory or Onefast?

Fastory ships an update every 9 days, and Onefast every 2 days. Most recently, Fastory was updated on October 24, 2026 and Onefast on October 29, 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.*