# Intermittent Fasting vs Vow Fasting

The clearest difference is device support: Intermittent Fasting at 3 against Vow Fasting's 1. Vow Fasting's advantage is iOS requirement (17.6 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Intermittent Fasting sells 1 one-off in-app purchase and Vow Fasting sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Intermittent Fasting ships an update every 3 weeks, Vow Fasting fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Intermittent Fasting | Vow Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/intermittent-fasting-fasted/id6760961265/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 13 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cliapis](https://appshunter.io/developer/329746116) | [FILIP LUCCA KEJSER DAMICI](https://appshunter.io/developer/6776396594) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-fasted/id6760961265)

This app helps you track your intermittent fasting journey with a simple, private interface. It offers a free tier with essential tracking tools and an optional one-time purchase for advanced features like water and protein tracking, and deeper insights. Your data remains on your device for maximum privacy.

**Highlights:** Intermittent fasting timer, Metabolic phase tracking, Water and protein tracking, Home and Lock Screen widgets, Apple Watch integration, On-device AI insights, Private data storage

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasted Pro | $4.99 | one-time |


### Vow Fasting

[App page](https://appshunter.io/ios/app/vow-fasting/id6776396592)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vow Pro Monthly | $4.99 | per month |
| Vow Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is Vow Fasting free?

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

### Do Intermittent Fasting or Vow Fasting have ads?

Neither Intermittent Fasting nor Vow Fasting shows ads.

### Which is updated more often, Intermittent Fasting or Vow Fasting?

Intermittent Fasting ships an update every 3 weeks, and Vow Fasting fortnightly. Most recently, Intermittent Fasting was updated on October 24, 2026 and Vow Fasting on October 25, 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.*