# IsDBI Reader vs LingoBook

The clearest difference is rating: IsDBI Reader at 5.0 against LingoBook's 3.7. IsDBI Reader also leads on in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 4 months). LingoBook's advantage is ratings volume (3 vs 1). On price, 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. IsDBI Reader asks for nothing beyond the download.

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

IsDBI Reader ships an update every 3 weeks, LingoBook every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | IsDBI Reader | LingoBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/isdbi-reader/id1567203321/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/lingobook-read-any-language/id6746479282/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | **Free** | Freemium |
| Size | 40 MB | 541 MB |
| Requires iOS | **16.1** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Ethmar Advertising Company](https://appshunter.io/developer/1255316278) | [BILINGO COMPANY LIMITED - LEARN ENGLISH 4 SKILLS](https://appshunter.io/developer/1774680301) |

## What reviewers say

### IsDBI Reader

[App page](https://appshunter.io/ios/app/isdbi-reader/id1567203321)

Access and organize Islamic economics, banking, and finance publications. This reader allows you to sync purchases, collections, bookmarks, and notes across all your devices for a personalized reading experience.

**Highlights:** Access purchased books across devices, Organize books into personal collections, Sync bookmarks, highlights, and notes, Customizable reading experience, Access research publications

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

**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 IsDBI Reader free?

IsDBI Reader 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, IsDBI Reader or LingoBook?

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

### Do IsDBI Reader or LingoBook have ads?

Neither IsDBI Reader nor LingoBook shows ads.

### Which is updated more often, IsDBI Reader or LingoBook?

IsDBI Reader ships an update every 3 weeks, and LingoBook every 4 months. Most recently, IsDBI Reader was updated on November 3, 2026 and LingoBook on October 30, 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.*