# TKBooks vs PU

The clearest difference is update cadence: PU at every 3 weeks against TKBooks's every 3 months. TKBooks's advantage is iOS requirement (13.0 vs 15.1). 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, PU every 3 weeks. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | TKBooks | PU |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Free | — |
| Size | 91 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MCBooks Joint Stock Company](https://appshunter.io/developer/1156983077) | [PHX SMART SCHOOL SOLUTIONS JOINT STOCK COMPANY](https://appshunter.io/developer/1647312243) |

## 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


### PU

[App page](https://appshunter.io/ios/app/pu-lic/id1630702943)

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

**In-app purchases:** none


## Frequently asked questions

### Is TKBooks free?

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

### Is PU free?

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

### Do TKBooks or PU have ads?

Neither TKBooks nor PU shows ads.

### Which is updated more often, TKBooks or PU?

TKBooks ships an update every 3 months, and PU every 3 weeks. Most recently, TKBooks was updated on October 15, 2026 and PU on October 10, 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.*