# Diofit vs PrepFit

The clearest difference is in-app purchases: Diofit at none against PrepFit's 1. Diofit also leads on iOS requirement (13.0 vs 17.6). PrepFit's advantage is update cadence (daily vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. PrepFit sells 1 one-off in-app purchase. Diofit asks for nothing beyond the download.

Diofit ships an update every 7 months, PrepFit daily. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Diofit | PrepFit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Size | 195 MB | 7 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [DioFit Venray B.V.](https://appshunter.io/developer/1656257598) | [Michael Stuut](https://appshunter.io/developer/1886367246) |

## What reviewers say

### Diofit

[App page](https://appshunter.io/ios/app/diofit/id6444705314)

**Features:** macOS Compatibility

**In-app purchases:** none


### PrepFit

[App page](https://appshunter.io/ios/app/prepfit/id6762074555)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prepfit Pro | $3.99 | one-time |


## Frequently asked questions

### Is Diofit free?

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

### Is PrepFit free?

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

### Do Diofit or PrepFit have ads?

Neither Diofit nor PrepFit shows ads.

### Which is updated more often, Diofit or PrepFit?

Diofit ships an update every 7 months, and PrepFit daily. Most recently, Diofit was updated on October 25, 2026 and PrepFit on October 26, 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.*