# SmartBook vs Linforge

SmartBook and Linforge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. SmartBook sells 3 in-app purchases, starting at $1.99 per month and Linforge sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

SmartBook ships an update weekly, Linforge every 9 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SmartBook | Linforge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (27 ratings)](https://appshunter.io/ios/app/smartbook-dual-language-books/id1278697399/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 30 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Stanislau Kurs](https://appshunter.io/developer/1278697398) | [祥斌 都](https://appshunter.io/developer/6785702159) |

## 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 |


### Linforge

[App page](https://appshunter.io/ios/app/linforge/id6785759912)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BasicMonthly | $19.99 | per month |
| Pro Monthly | $39.99 | per month |
| Basic Yearly | $199.99 | per year |
| Pro Yearly | $399.99 | per year |
| 500 Conversation Turns | $4.99 | one-time |
| 1,000 Conversation Turns | $9.99 | one-time |


## Frequently asked questions

### Is SmartBook free?

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

### Is Linforge free?

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

### Do SmartBook or Linforge have ads?

Neither SmartBook nor Linforge shows ads.

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

SmartBook ships an update weekly, and Linforge every 9 days. Most recently, SmartBook was updated on October 29, 2026 and Linforge on October 28, 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.*