# DietPro vs Fast

The clearest difference is update cadence: Fast at every 2 days against DietPro's weekly. DietPro's advantage is iOS requirement (13.4 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DietPro ships an update weekly, Fast every 2 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | DietPro | Fast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 45 MB | 6 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [DVTech s.r.l.](https://appshunter.io/developer/1576158681) | [Invotek AS](https://appshunter.io/developer/1836667478) |

## What reviewers say

### DietPro

[App page](https://appshunter.io/ios/app/dietpro/id6752355016)

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

**In-app purchases:** none


### Fast

[App page](https://appshunter.io/ios/app/fast-e-intermittent-fasting/id6759206116)

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

**In-app purchases:** none


## Frequently asked questions

### Is DietPro free?

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

### Is Fast free?

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

### Do DietPro or Fast have ads?

Neither DietPro nor Fast shows ads.

### Which is updated more often, DietPro or Fast?

DietPro ships an update weekly, and Fast every 2 days. Most recently, DietPro was updated on October 15, 2026 and Fast on October 16, 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.*