Comparison

DualText Reader vs BookLight

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

DualText Reader

Features
Read full description

DualText Reader is an app that lets you enjoy classic novels and literary works by reading the original text side-by-side with its translation. You can bookmark passages that catch your attention, and highlight memorable lines to save them like a scrapbook or vocabulary list. Experience a new way of reading that brings together the depth of the original text and the clarity of the translation. Enjoy your dual-language reading journey.

About

BookLight

This app helps language learners build vocabulary by translating words with a single tap while reading EPUB, PDF, or TXT files. It automatically saves new words and uses spaced repetition flashcards to aid memorization, eliminating the need for manual flashcard creation or app switching.

Highlights
  • 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
Features
Read full description

Reading a book in another language? Stop breaking your flow to look words up. BookLight translates any word with a single tap β€” 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 β€” 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 β€” Free Classics Inside - Download from various free classics (Project Gutenberg) right inside the app β€” 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 β€” 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 β€” 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 β€” Spaced Repetition - Your vocabulary list builds itself as you read β€” 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 β€” AI Read-Aloud - A natural, human-like on-device AI voice reads your book aloud β€” 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 β€” 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 β€” 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 β€” page turns or continuous scroll. - Read hands-free with auto-scroll β€” 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 β€” 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

Screenshots

DualText Reader3 screens
BookLight4 screens

Verdict

The call

The clearest difference is in-app purchases: DualText Reader at none against BookLight's 3. BookLight's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. BookLight sells 3 in-app purchases, starting at $0.99 per month. DualText Reader asks for nothing beyond the download.

UpkeepUpdate frequency

DualText Reader ships an update every 2 weeks, BookLight every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard3 real differences Β· 5 level
DualText Reader versus BookLight: the parameters behind the verdict, then further details
ParameterDualText ReaderBookLight
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 2 weeksEvery 4 days β€” better
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.4 β€” better
Further details β€” not scored
Size9 MB94 MB
Age rating12+4+
DeveloperMasatomo FukudaJungjun Lee

In-app purchases

None

DualText Reader

No in-app purchases

3 purchases

BookLight

Subscriptions2
  • Monthly Plan$0.991 Month
  • Yearly Plan7 Days trial$7.991 Year
One-time1
  • Lifetime Plan$9.99

Questions

Is DualText Reader free?
DualText Reader is free to download, with no in-app purchases.
Is BookLight free?
BookLight is free to download, with in-app purchases available.
Do DualText Reader or BookLight have ads?
DualText Reader shows ads; BookLight does not.
Which is updated more often, DualText Reader or BookLight?
DualText Reader ships an update every 2 weeks, and BookLight every 4 days. Most recently, DualText Reader was updated on October 28, 2026 and BookLight on October 31, 2026.

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