# Ustadia vs PDF Book Read

The clearest difference is in-app purchases: Ustadia at none against PDF Book Read's 2. Ustadia also leads on update cadence (every 6 days vs every 2 weeks) and iOS requirement (15.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. PDF Book Read sells 2 in-app purchases, starting at $1.99 per year. Ustadia asks for nothing beyond the download.

Ustadia ships an update every 6 days, PDF Book Read every 2 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Ustadia | PDF Book Read |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Size | 62 MB | 9 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ustadia.uz](https://appshunter.io/developer/1884387575) | [Yuya Takamoto](https://appshunter.io/developer/1881459297) |

## What reviewers say

### Ustadia

[App page](https://appshunter.io/ios/app/ustadia/id6760426535)

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

**In-app purchases:** none


### PDF Book Read

[App page](https://appshunter.io/ios/app/pdf-book-read/id6760929497)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Premium | $1.99 | per year |
| Lifetime Premium | $2.99 | one-time |


## Frequently asked questions

### Is Ustadia free?

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

### Is PDF Book Read free?

PDF Book Read is free to download, with in-app purchases available.

### Do Ustadia or PDF Book Read have ads?

Neither Ustadia nor PDF Book Read shows ads.

### Which is updated more often, Ustadia or PDF Book Read?

Ustadia ships an update every 6 days, and PDF Book Read every 2 weeks. Most recently, Ustadia was updated on October 1, 2026 and PDF Book Read on October 2, 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.*