# BookSmart by Worldreader vs Librella

The clearest difference is update cadence: BookSmart by Worldreader at every 9 days against Librella's every 2 months. Librella's advantage is iOS requirement (13.4 vs 15.6). 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.

BookSmart by Worldreader ships an update every 9 days, Librella every 2 months. The most recent releases landed on September 25, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | BookSmart by Worldreader | Librella |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (24 ratings)](https://appshunter.io/ios/app/booksmart-by-worldreader/id1629873557/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free | — |
| Size | 55 MB | 17 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Worldreader](https://appshunter.io/developer/1629873559) | [Emin Durak](https://appshunter.io/developer/1706063163) |

## What reviewers say

### BookSmart by Worldreader

[App page](https://appshunter.io/ios/app/booksmart-by-worldreader/id1629873557)

Access thousands of free books, learning materials, and activities in multiple languages for K-12 children. Designed to foster reading development and support learning goals, it offers engaging content for both children and caretakers to enjoy together.

**Highlights:** Thousands of free books, Learning materials and activities, Multiple languages, K-12 focus, Reading development support, Interactive activities for comprehension

**Features:** macOS Compatibility

**In-app purchases:** none


### Librella

[App page](https://appshunter.io/ios/app/librella/id6475585434)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookSmart by Worldreader free?

BookSmart by Worldreader is free to download, with no in-app purchases.

### Is Librella free?

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

### Do BookSmart by Worldreader or Librella have ads?

Neither BookSmart by Worldreader nor Librella shows ads.

### Which is updated more often, BookSmart by Worldreader or Librella?

BookSmart by Worldreader ships an update every 9 days, and Librella every 2 months. Most recently, BookSmart by Worldreader was updated on September 25, 2026 and Librella on May 16, 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.*