RubiMask: Book Translator
Live Camera & Read Aloud
About
Translate and read aloud text from physical books or documents using your device's camera. Tap any word for instant definitions and meanings within its sentence context. Supports various languages and text formats, including vertical Japanese.
What's New in RubiMask
2.00
November 2, 2026
• Designed for iPhone Duo: foreign-language books show the page and its translation side by side — the live camera, too. Open it fully to read furigana-free pages as a two-page spread, like a real book. Half open, the page sits on top and the text below. • New Auto-Correct for recognized text — review each fix before it’s applied. Furigana masking is also more accurate. • Read aloud now plays even in Silent Mode and picks the best voice for each language. • “In This Sentence” word meanings are more accurate (on Apple Intelligence devices). • Uses less memory with long PDFs, fixes the live camera in landscape, and hides furigana live more smoothly.
MoreSubscriptions & In-App Purchases
RubiMask Premium
No ads, unlimited pages, all exports
Developer apps
FAQ
What languages does RubiMask support for translation?
RubiMask supports translation for multiple languages, automatically detecting the book's language. It specifically mentions Japanese and Chinese in its features, and can extract text from PDFs and photos in many languages.
How does RubiMask handle Japanese text with furigana?
RubiMask can automatically mask furigana (ruby text) on vertical Japanese books, ensuring the text is not scrambled. It also supports reading Japanese text with furigana hidden live via the camera.
Can I use RubiMask offline?
Automatic translation requires iOS 18 or later, suggesting an online component for translation services. However, the app's ability to translate on-device with Apple's translation engine might offer some offline capabilities, though this is not explicitly stated.
What are the limitations of the free version of RubiMask?
The free version of RubiMask offers 20 reads per day and unlimited word meanings. It also limits project saves to 3 and pages to 100.
What features are included in RubiMask Premium?
RubiMask Premium provides unlimited reading, unlimited pages, unlimited project saves, PDF export, audio export (M4A), and removes all ads.
Does RubiMask have ads?
Yes, RubiMask contains advertisements. Users can remove all ads by subscribing to RubiMask Premium.
What devices is RubiMask compatible with?
RubiMask is designed for iPhone and iPad. Automatic translation requires iOS 18 or later, and advanced 'in this sentence' meanings require a device with Apple Intelligence.
How often is RubiMask updated?
The latest version of RubiMask is 2.00, which was last updated on November 2, 2026. This indicates a recent update, suggesting the app is actively maintained.
