# ClearFast vs Fasting Well

The clearest difference is in-app purchases: Fasting Well at none against ClearFast's 2. ClearFast's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ClearFast sells 2 in-app purchases, starting at $1.99 per month. Fasting Well asks for nothing beyond the download.

ClearFast ships an update every 4 months, Fasting Well every 3 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ClearFast | Fasting Well |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fasting-well-if-timer/id6772277372/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Freemium |
| Size | 40 MB | 45 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Janardan Ayachi](https://appshunter.io/developer/1890658992) | [Generalizable](https://appshunter.io/developer/1847351234) |

## What reviewers say

### ClearFast

[App page](https://appshunter.io/ios/app/clearfast-fasting-timer/id6763855541)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClearFast Premium Monthly | $1.99 | per month |
| ClearFast Lifetime | $19.99 | one-time |


### 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


## Frequently asked questions

### Is ClearFast free?

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

### Is Fasting Well free?

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

### Do ClearFast or Fasting Well have ads?

Neither ClearFast nor Fasting Well shows ads.

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

ClearFast ships an update every 4 months, and Fasting Well every 3 months. Most recently, ClearFast was updated on September 18, 2026 and Fasting Well on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*