# InterFasting vs Fasting Timer & Hydration Log

The clearest difference is ads: Fasting Timer & Hydration Log at none against InterFasting's shown. InterFasting's advantage is update cadence (every 4 days vs every 5 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. InterFasting sells 5 in-app purchases, starting at $3.99 per month and Fasting Timer & Hydration Log sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

InterFasting ships an update every 4 days, Fasting Timer & Hydration Log every 5 weeks. The most recent releases landed on November 6, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | InterFasting | Fasting Timer & Hydration Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (361 ratings)](https://appshunter.io/ios/app/interfasting-fasting-tracker/id1467464443/reviews)** | — |
| Number of ratings | **361** | — |
| Positive reviews | 88.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Liviet](https://appshunter.io/developer/1464827169) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### InterFasting

[App page](https://appshunter.io/ios/app/interfasting-fasting-tracker/id1467464443)

This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

**Highlights:** AI fasting schedule recommendations, AI food calorie calculation, Intermittent fasting timer, Customizable fasting plans, All-in-one health tracking, Fasting analysis and reports, Home screen widget

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intermittent Fasting Monthly | $3.99 | per month |
| Intermittent Fasting Monthly | $6.99 | per month |
| Intermittent Fasting Annual | $12.99 | per year |
| Intermittent Fasting Annual | $34.99 | per year |
| Premium User | $12.99 | one-time |


### Fasting Timer & Hydration Log

[App page](https://appshunter.io/ios/app/fasting-timer-and-hydration-log/id6772282181)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ketosis Tracker Weekly | $6.99 | per 7 days |
| Eating Window Yearly | $34.99 | per year |
| Autophagy Access, One-Time | $69.99 | one-time |


## Frequently asked questions

### Is InterFasting free?

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

### Is Fasting Timer & Hydration Log free?

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

### Do InterFasting or Fasting Timer & Hydration Log have ads?

InterFasting shows ads; Fasting Timer & Hydration Log does not.

### Which is updated more often, InterFasting or Fasting Timer & Hydration Log?

InterFasting ships an update every 4 days, and Fasting Timer & Hydration Log every 5 weeks. Most recently, InterFasting was updated on November 6, 2026 and Fasting Timer & Hydration Log on October 28, 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.*