# BookLight - EPUB Translator — Tap to Translate & Save Words.

> EPUB reader with integrated tap-to-translate and spaced-repetition vocabulary builder. (iPhone/iPad app by Jungjun Lee.)

- Source: https://appshunter.io/ios/app/booklight-epub-translator/id6759386987 (this page in markdown: same URL + `.md`)
- Developer: [Jungjun Lee](https://appshunter.io/developer/1485806455)
- Category: Books, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 79 MB
- Languages: American English
- Released: 2026-03-18
- Data updated: 2026-08-22
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/booklight-epub-translator/id6759386987/reviews.md

## What is BookLight?

Reading a book in another language? Stop breaking your flow to look words up. BookLight translates any word with a single tap — and remembers it for you.

BookLight is a EPUB & PDF & Txt reader built for language learners. Tap a word for an instant translation, and it's saved to your vocabulary automatically. Then spaced-repetition flashcards bring it back right before you'd forget — so every reading session actually builds your vocabulary. No app-switching. No flashcards to make by hand. Perfect for language learners, foreign-book readers, and anyone studying for TOEFL or IELTS.

Key Features:

Start Reading in Seconds — Free Classics Inside

- Download from various free classics (Project Gutenberg) right inside the app — no files to find, no setup.
- Or import your own DRM-free EPUB & PDF & TXT files from your device.
- Read offline anytime, with your reading progress saved and restored automatically.

Tap to Translate — Without Losing Context

- Tap any word for an instant translation: meaning by part of speech, phonetics, and an example sentence.
- Tap an inflected word and see its base form, too.
- Hear the pronunciation read aloud with one tap.
- Every word you tap is saved automatically — together with the sentence and the book it came from.
- Translate into 9 languages: Korean, Spanish, French, Japanese, Chinese, Russian, Hindi, Vietnamese, and Indonesian.

Remember Every Word — Spaced Repetition

- Your vocabulary list builds itself as you read — no manual entry.
- Review with spaced-repetition (SRS) flashcards that resurface each word right before you forget it.
- Tap any saved word to jump straight back to the exact spot in the book.
- Keep a daily streak and a smart reminder nudges you only when words are actually waiting.

Your Book Becomes an Audiobook — AI Read-Aloud

- A natural, human-like on-device AI voice reads your book aloud — choose from 10 voices.
- The sentence being read is highlighted, so you can follow along with your eyes and ears.
- Playback keeps going with the screen off or while you use other apps.
- Playback speed from 0.5x to 2x — faster on the commute, slower before sleep.
- Speech is synthesized on your device, so it works without an internet connection.

Read Your Way, Day or Night

- 7 fonts and 25 reading themes — from Sepia and Night to Rose Quartz, Sage, and Midnight.
- Adjust font size and line spacing until the page feels just right.
- Choose how you read — page turns or continuous scroll.
- Read hands-free with auto-scroll — 10 speed levels, and a single touch pauses instantly.
- Full dark mode plus automatic system-theme sync.
- Side-by-Side two-page display mode for comfortable reading on tablets.

Loved by readers in 10+ countries. Supports 9 translation languages and works with any DRM-free EPUB or TXT file.

Download BookLight today — and turn every reading session into a vocabulary lesson!

- Privacy Policy: https://pearlismylove.github.io/apps/book-light/privacy-policy.html
- Terms And Conditions: https://pearlismylove.github.io/apps/book-light/terms-and-conditions.html
- Support: https://pearlismylove.github.io/apps/book-light/support.html

## Key features

- Tap to translate words instantly
- Automatic vocabulary saving
- Spaced-repetition flashcards
- Import EPUB, PDF, TXT files
- Offline reading support
- Customizable reading themes and fonts
- Pronunciation audio

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Plan | $7.99 | per year |
| Monthly Plan | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Plan | $9.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/booklight-epub-translator/id6759386987/reviews.md

### 5/5 — 되게 괜찮은것 같습니다.

*2026-07-01*

근데 책 읽다가 메인메뉴로 돌아가려할때는 어떻게 해야하나요? 그냥 어플 종료하고 하는거 말고는 없는지

**Developer response:** 안녕하세요!

답변이 늦어져서 죄송합니다.

책을 읽는 도중 책의 아무곳이나 한번 터치를 해주시면 상단 메뉴가 나타나고 뒤로가기가 가능해집니다.

좋은 리뷰를 남겨주셔서 너무 감사드려요!

꾸준히 개선하여 더 만족스러운 사용성을 드릴 수 있도록 노력하겠습니다.

감사합니다!

## Frequently asked questions about BookLight

### What languages can BookLight translate into?

BookLight supports translation into 9 languages: Korean, Spanish, French, Japanese, Chinese, Russian, Hindi, Vietnamese, and Indonesian. This allows for a wide range of language learning opportunities.

### Can I use my own books with BookLight?

Yes, you can import your own DRM-free EPUB, PDF, and TXT files directly into BookLight. The app also offers a selection of free classics from Project Gutenberg for immediate reading.

### How does BookLight help me remember new words?

BookLight automatically saves every word you tap for translation into your vocabulary list. It then uses spaced-repetition flashcards to review these words at optimal intervals, ensuring you retain what you learn.

### Does BookLight have ads?

No, BookLight does not contain advertisements. This ensures an uninterrupted reading and learning experience for all users.

### What reading customization options does BookLight offer?

BookLight provides extensive customization with 7 fonts, 25 reading themes (including dark mode and system theme sync), adjustable font size and line spacing, and options for page turns or continuous scroll. It also features a two-page display mode for tablets.

### Is BookLight available on all devices?

BookLight is available for iPhone, iPad, and iPod. It is designed to provide a seamless experience across these Apple devices.

### What are the subscription options for BookLight?

BookLight offers both a Monthly Plan for $0.99 and a Yearly Plan for $7.99. These subscriptions provide access to premium features and content.

### How often is BookLight updated?

The latest version of BookLight is 1.7.3, and it was last updated on July 4, 2026. This indicates a consistent update schedule to improve the app and add new features.

## Version history (last 5 releases)

### 1.11.4 — 2026-08-11

- Fix bugs and add improvements

### 1.10.1 — 2026-08-06

- Add AI Read-Aloud feature.

### 1.8.2 — 2026-07-21

- Fix bugs and add improvements

### 1.8.1 — 2026-07-19

- Fixed a bug where pronunciation audio playback was not working in silent mode.

### 1.8.0 — 2026-07-17

- Fix bugs and add improvements

## More apps by Jungjun Lee

- [Re:Word - Remember Words](https://appshunter.io/ios/app/reword-remember-words/id6670746920)
- [Voispace: AI Voice Recorder](https://appshunter.io/ios/app/voispace-ai-voice-recorder/id6761188704)

All apps by Jungjun Lee: https://appshunter.io/developer/1485806455

## Related topics

[epub translator](https://appshunter.io/ios/topics/epub-translator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*