# SmartBook vs KeepReading

The clearest difference is rating: KeepReading at 5.0 against SmartBook's 4.5. KeepReading also leads on in-app purchases (none vs 3). SmartBook's advantage is ratings volume (23 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. SmartBook sells 3 in-app purchases, starting at $1.99 per month. KeepReading asks for nothing beyond the download.

KeepReading holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SmartBook has 23 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 56% of SmartBook's written reviews are positive against 50% of KeepReading's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SmartBook | KeepReading |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (23 ratings)](https://appshunter.io/ios/app/smartbook-dual-language-books/id1278697399/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keepreading/id1576840247/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | **56.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 106 MB | 19 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Stanislau Kurs](https://appshunter.io/developer/1278697398) | [Cambridge Technology Innovation Centre Ltd](https://appshunter.io/developer/1576840249) |

## What reviewers say

### SmartBook

[App page](https://appshunter.io/ios/app/smartbook-dual-language-books/id1278697399)

This app facilitates language learning through bilingual reading. It offers parallel text, tap-to-translate functionality, and audio narration to help users master new languages by reading books and articles. Users can upload their own content or access a library of free dual-language books.

**Highlights:** Parallel book reader, Tap to translate, Real-time translation with Reverso Context, Audio narration, FB2 and EPUB reader, Vocabulary builder, AI translation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual subscription | $19.99 | per year |
| Premium PRO | $24.99 | one-time |


### KeepReading

[App page](https://appshunter.io/ios/app/keepreading/id1576840247)

Effortlessly read foreign language texts with instant translations. This app helps you build vocabulary and comprehension by providing seamless translation options for various content types, making language learning enjoyable and interruption-free.

**Highlights:** Tap-to-show word translation, Swipe-to-show phrase/sentence translation, Auto-scan translation while reading, Supports web pages, ePubs, PDFs, and notes, Over 20 languages supported, Vocabulary and comprehension building

**In-app purchases:** none


## Frequently asked questions

### Is SmartBook free?

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

### Is KeepReading free?

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

### Which has better reviews, SmartBook or KeepReading?

KeepReading is rated higher. SmartBook averages 4.5 out of 5 from 23 ratings, while KeepReading averages 5.0 from 1 ratings.

### Do SmartBook or KeepReading have ads?

Neither SmartBook nor KeepReading shows ads.

### Which is updated more often, SmartBook or KeepReading?

SmartBook ships an update every 5 days, and KeepReading every 5 days. Most recently, SmartBook was updated on October 17, 2026 and KeepReading on October 8, 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.*