# MUUD AI vs Intermittent Fasting

The clearest difference is in-app purchases: MUUD AI at none against Intermittent Fasting's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Intermittent Fasting sells 3 in-app purchases, starting at $6.99 per month. MUUD AI asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MUUD AI | Intermittent Fasting |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 66 MB | 56 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [MUUD Technology](https://appshunter.io/developer/1676327223) | [勇 李](https://appshunter.io/developer/1525059400) |

## What reviewers say

### MUUD AI

[App page](https://appshunter.io/ios/app/muud-ai/id6748235594)

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

**In-app purchases:** none


### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6808752584)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $6.99 | per month |
| Annual Pro | $19.99 | per year |
| Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is MUUD AI free?

MUUD AI is free to download, with no in-app purchases.

### Is Intermittent Fasting free?

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

### Do MUUD AI or Intermittent Fasting have ads?

Neither MUUD AI nor Intermittent Fasting shows ads.

### Which is updated more often, MUUD AI or Intermittent Fasting?

MUUD AI ships an update weekly, and Intermittent Fasting weekly. Most recently, MUUD AI was updated on October 28, 2026 and Intermittent Fasting on October 31, 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.*