# Knowuro reader vs Booksify

The clearest difference is in-app purchases: Knowuro reader at none against Booksify's 5. Booksify's advantage is update cadence (every 6 days vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Booksify sells 5 in-app purchases, starting at $7.99 per 7 days. Knowuro reader asks for nothing beyond the download.

Knowuro reader ships an update every 4 weeks, Booksify every 6 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Knowuro reader | Booksify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 6 days** |
| Size | 24 MB | 93 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Knowuro](https://appshunter.io/developer/1728721237) | [Jalal Aliyev](https://appshunter.io/developer/1879483186) |

## What reviewers say

### Knowuro reader

[App page](https://appshunter.io/ios/app/knowuro-reader/id6477208617)

**In-app purchases:** none


### Booksify

[App page](https://appshunter.io/ios/app/booksify/id6759565415)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Monthly Premium | $12.99 | per month |
| Monthly Subscription | $24.99 | per month |
| 3 Months Subscription | $59.99 | per 3 months |
| Annual Subscription | $79.99 | per year |


## Frequently asked questions

### Is Knowuro reader free?

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

### Is Booksify free?

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

### Do Knowuro reader or Booksify have ads?

Neither Knowuro reader nor Booksify shows ads.

### Which is updated more often, Knowuro reader or Booksify?

Knowuro reader ships an update every 4 weeks, and Booksify every 6 days. Most recently, Knowuro reader was updated on October 4, 2026 and Booksify on October 5, 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.*