# Fasting Well vs WaterFast

The clearest difference is in-app purchases: Fasting Well at none against WaterFast's 2. WaterFast's advantage is update cadence (weekly vs every 3 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. WaterFast sells 2 in-app purchases, starting at $9.99 per year. Fasting Well asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Fasting Well against 5.0 for WaterFast. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Fasting Well ships an update every 3 months, WaterFast weekly. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fasting Well | WaterFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/fasting-well-if-timer/id6772277372/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Freemium | Freemium |
| Size | 45 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Generalizable](https://appshunter.io/developer/1847351234) | [LUIS ORLANDO LAZO GONZALEZ](https://appshunter.io/developer/1896012382) |

## What reviewers say

### Fasting Well

[App page](https://appshunter.io/ios/app/fasting-well-if-timer/id6772277372)

Track your intermittent fasting journey with science-backed insights. Monitor your progress through different metabolic stages and view your history with a visual heatmap. Offers built-in plans and detailed scientific articles.

**Highlights:** Stage-aware fasting progress visualization, Live timer with customizable ring, Six built-in fasting plans, Journal and weekly progress charts, Science-backed articles on fasting, Calendar heatmap of activity, Privacy-first, on-device data storage

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

**In-app purchases:** none


### WaterFast

[App page](https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484)

This app provides a synchronized intermittent fasting timer designed for seamless use across your iPhone and Apple Watch. It offers detailed insights into fasting zones and hydration tracking, with a focus on privacy and a user-friendly experience.

**Highlights:** Synchronized iPhone and Apple Watch timer, Fasting zone insights, Hydration tracking, Multiple fasting plans, Streak calendar, Data export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WaterFast PRO Yearly | $9.99 | per year |
| WaterFast PRO Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Fasting Well free?

Fasting Well is free to download, with no in-app purchases.

### Is WaterFast free?

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

### Which has better reviews, Fasting Well or WaterFast?

Fasting Well and WaterFast are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Fasting Well or WaterFast have ads?

Neither Fasting Well nor WaterFast shows ads.

### Which is updated more often, Fasting Well or WaterFast?

Fasting Well ships an update every 3 months, and WaterFast weekly. Most recently, Fasting Well was updated on October 13, 2026 and WaterFast on October 6, 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.*