# DR vs SmartNote AI

The clearest difference is in-app purchases: DR at none against SmartNote AI's 3. SmartNote AI's advantage is update cadence (every 9 days vs every 2 months) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. SmartNote AI sells 3 in-app purchases, starting at $8.99 per 7 days. DR asks for nothing beyond the download.

DR ships an update every 2 months, SmartNote AI every 9 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DR | SmartNote AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smartnote-ai-study-notes/id6745892250/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 12 MB | 4 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Rutz Bildungsloesungen GmbH](https://appshunter.io/developer/708314115) | [浩亮 孙](https://appshunter.io/developer/1547792897) |

## What reviewers say

### DR

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

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

**In-app purchases:** none


### SmartNote AI

[App page](https://appshunter.io/ios/app/smartnote-ai-study-notes/id6745892250)

This AI-powered app transforms your notes into structured learning materials. It generates flashcards and practice tests to enhance memory and knowledge retention, creating a personalized study system.

**Highlights:** AI-powered structured notes, Personalized memory flashcards, Customized practice tests, Spaced repetition algorithm, Automatic content summarization, Multiple input formats (text, image, PDF)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 高级功能-连续使用一周 | $8.99 | per 7 days |
| 高级功能-连续使用一个月 | $18.99 | per month |
| 高级功能-连续使用一年 | $89.00 | per year |


## Frequently asked questions

### Is DR free?

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

### Is SmartNote AI free?

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

### Do DR or SmartNote AI have ads?

Neither DR nor SmartNote AI shows ads.

### Which is updated more often, DR or SmartNote AI?

DR ships an update every 2 months, and SmartNote AI every 9 days. Most recently, DR was updated on October 9, 2026 and SmartNote AI on October 7, 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.*