# Parallel Books vs LingoBook

The clearest difference is rating: Parallel Books at 5.0 against LingoBook's 3.7. Parallel Books also leads on in-app purchases (none vs 3) and iOS requirement (15.6 vs 18.6). LingoBook's advantage is ratings volume (3 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. LingoBook sells 3 in-app purchases, starting at $1.00 per month. Parallel Books asks for nothing beyond the download.

Parallel Books holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Parallel Books ships an update every 3 months, LingoBook every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Parallel Books | LingoBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/parallel-books/id1045596664/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/lingobook-read-any-language/id6746479282/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 541 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [High Tea IT Limited](https://appshunter.io/developer/1045596663) | [BILINGO COMPANY LIMITED - LEARN ENGLISH 4 SKILLS](https://appshunter.io/developer/1774680301) |

## What reviewers say

### Parallel Books

[App page](https://appshunter.io/ios/app/parallel-books/id1045596664)

Learn a new language by reading books with side-by-side translations. This app keeps translations synchronized as you read, allowing for full immersion. Easily switch between display modes and add notes for a personalized learning experience.

**Highlights:** Dual language display, Synchronized translations, Adjustable display modes, Searchable notes, Day/night themes, Highlighting

**Features:** macOS Compatibility

**In-app purchases:** none


### LingoBook

[App page](https://appshunter.io/ios/app/lingobook-read-any-language/id6746479282)

This app is an ebook reader designed for language learners. It allows you to read books in various formats and instantly translate any word you tap. You can also explore bilingual content like YouTube videos and news articles to enhance your vocabulary and comprehension.

**Highlights:** Read ebooks in multiple formats, Built-in dictionary for 80+ languages, Instant word translation, Import your own books, Bilingual YouTube videos, Bilingual news articles, Smart dictionary for vocabulary building

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.00 | per month |
| Premium Yearly | $10.00 | per year |
| Premium Trial Yearly | $10.00 | per year |


## Frequently asked questions

### Is Parallel Books free?

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

### Is LingoBook free?

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

### Which has better reviews, Parallel Books or LingoBook?

Parallel Books is rated higher. Parallel Books averages 5.0 out of 5 from 1 ratings, while LingoBook averages 3.7 from 3 ratings.

### Do Parallel Books or LingoBook have ads?

Neither Parallel Books nor LingoBook shows ads.

### Which is updated more often, Parallel Books or LingoBook?

Parallel Books ships an update every 3 months, and LingoBook every 4 months. Most recently, Parallel Books was updated on October 21, 2026 and LingoBook on October 24, 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.*