# OrthoKeeper vs OrthoK Diary

The clearest difference is in-app purchases: OrthoK Diary at none against OrthoKeeper's 1. OrthoK Diary also leads on iOS requirement (16.4 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. OrthoKeeper sells 1 one-off in-app purchase. OrthoK Diary asks for nothing beyond the download.

## The numbers

| Metric | OrthoKeeper | OrthoK Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 8 MB | 46 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Fu Kang Heng Development Co., Ltd.](https://appshunter.io/developer/1863837413) | [modeleven IT GmbH](https://appshunter.io/developer/1677767094) |

## What reviewers say

### OrthoKeeper

[App page](https://appshunter.io/ios/app/orthokeeper/id6769785945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Reports | $0.99 | one-time |


### OrthoK Diary

[App page](https://appshunter.io/ios/app/orthok-diary/id6796739030)

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

**In-app purchases:** none


## Frequently asked questions

### Is OrthoKeeper free?

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

### Is OrthoK Diary free?

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

### Do OrthoKeeper or OrthoK Diary have ads?

Neither OrthoKeeper nor OrthoK Diary shows ads.

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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.*