# TKBooks vs DRM AOF

The clearest difference is update cadence: DRM AOF at every 5 days against TKBooks's every 3 months. 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.

TKBooks ships an update every 3 months, DRM AOF every 5 days. The most recent releases landed on September 20, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | TKBooks | DRM AOF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/tkbooks/id1441525512/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 15.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 91 MB | 95 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MCBooks Joint Stock Company](https://appshunter.io/developer/1156983077) | [D&L Technology Integration And Consulting Joint Stock Company](https://appshunter.io/developer/1436285979) |

## What reviewers say

### TKBooks

[App page](https://appshunter.io/ios/app/tkbooks/id1441525512)

This educational app provides supplementary learning materials for students from primary to high school, covering subjects like Math, Literature, and Science. It offers a rich library of ebooks, audio, video, and practice tests that align with textbook content, making studying more effective.

**Highlights:** Digital library of ebooks, audio, and video, Practice tests and exercises, Offline content download, Progress tracking and assessment, Interactive learning tools

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

**In-app purchases:** none


### DRM AOF

[App page](https://appshunter.io/ios/app/drm-aof/id6680172612)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TKBooks free?

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

### Is DRM AOF free?

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

### Do TKBooks or DRM AOF have ads?

Neither TKBooks nor DRM AOF shows ads.

### Which is updated more often, TKBooks or DRM AOF?

TKBooks ships an update every 3 months, and DRM AOF every 5 days. Most recently, TKBooks was updated on September 20, 2026 and DRM AOF on May 19, 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.*