# BookSmart by Worldreader vs ReadKar

The clearest difference is update cadence: BookSmart by Worldreader at every 9 days against ReadKar's every 3 months. ReadKar's advantage is iOS requirement (13.0 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, ReadKar every 3 months. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BookSmart by Worldreader | ReadKar |
| --- | --- | --- |
| 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 3 months |
| Monetization | Free | — |
| Size | 55 MB | 22 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Worldreader](https://appshunter.io/developer/1629873559) | [Anivedam Technologies Private Limited](https://appshunter.io/developer/1878698785) |

## 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


### ReadKar

[App page](https://appshunter.io/ios/app/readkar/id6759455408)

**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 ReadKar free?

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

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

Neither BookSmart by Worldreader nor ReadKar shows ads.

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

BookSmart by Worldreader ships an update every 9 days, and ReadKar every 3 months. Most recently, BookSmart by Worldreader was updated on October 8, 2026 and ReadKar on October 3, 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.*