# DR vs StudyLiz

The clearest difference is in-app purchases: DR at none against StudyLiz's 2. StudyLiz's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.

Both are free to download. StudyLiz sells 2 in-app purchases, starting at $6.99 per 7 days. DR asks for nothing beyond the download.

## The numbers

| Metric | DR | StudyLiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 12 MB | 50 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Rutz Bildungsloesungen GmbH](https://appshunter.io/developer/708314115) | [JACKSON GATHONDU](https://appshunter.io/developer/1878080988) |

## What reviewers say

### DR

[App page](https://appshunter.io/ios/app/dr-annotate/id868029762)

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

**In-app purchases:** none


### StudyLiz

[App page](https://appshunter.io/ios/app/studyliz-study-guide-maker/id6759319389)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyLiz Pro Weekly | $6.99 | per 7 days |
| StudyLiz Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is DR free?

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

### Is StudyLiz free?

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

### Do DR or StudyLiz have ads?

Neither DR nor StudyLiz 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.*