# Fasting Timer vs Onefast

The clearest difference is update cadence: Onefast at every 2 days against Fasting Timer's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fasting Timer sells 3 in-app purchases, starting at $4.99 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.

Fasting Timer ships an update every 2 weeks, Onefast every 2 days. The most recent releases landed on October 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Fasting Timer | Onefast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 39 MB | 4 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Chui](https://appshunter.io/developer/6779802641) | [Nguyen Dinh Chung](https://appshunter.io/developer/6805296065) |

## What reviewers say

### Fasting Timer

[App page](https://appshunter.io/ios/app/fasting-timer-intermittent/id6779876031)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $4.99 | per month |
| Plus Yearly | $24.99 | per year |
| Plus Lifetime | $39.99 | one-time |


### 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 Fasting Timer free?

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

### Is Onefast free?

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

### Do Fasting Timer or Onefast have ads?

Neither Fasting Timer nor Onefast shows ads.

### Which is updated more often, Fasting Timer or Onefast?

Fasting Timer ships an update every 2 weeks, and Onefast every 2 days. Most recently, Fasting Timer was updated on October 25, 2026 and Onefast on October 4, 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.*