Decipher

Cadmus Lab LLC

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Decipher is a language learning e-reader that lets you read real books with live, side-by-side translation. Whether you're reading classic Spanish literature or translating your favorite English novels into another language, Decipher makes reading in a foreign language natural and intuitive.

HOW IT WORKS
-Open any EPUB book or browse thousands of free classics from Project Gutenberg. The screen splits into two panels — the original text on top, the translation below. Tap any word to see its definition, alternate meanings, and hear it pronounced. Save words to your personal vocabulary and review them with built-in flashcards.

KEY FEATURES
- Bidirectional translation between 11 languages including English, Spanish, French, German, Portuguese, Italian, Japanese, Korean, Chinese, Russian, and Arabic
- Tap any word for instant translation with alternate meanings
- Built-in library of 70,000+ free public domain books from Project Gutenberg
- Import your own DRM-free EPUB files
- Text-to-speech with adjustable speed for pronunciation practice
- Save vocabulary with color-coded highlights
- Flashcard review to reinforce learning
- Adjustable split-screen with snap points, or full-screen reading mode
- 4 reading themes (dark, light, warm, paper)
- Adjustable font sizes and horizontal or vertical layouts
- No account required — all data stays on your device

WHO IT'S FOR
- Language learners who want to read real books, not textbook exercises
- Bilingual readers who want side-by-side translation
- Anyone who loves classic literature and wants to explore it in a new language

FREE TO USE
Decipher includes a generous free tier with 30 word translations per day, text-to-speech, and vocabulary saving. Upgrade to Premium for unlimited access — one-time purchase, no subscriptions.

PRIVACY FIRST
No accounts, no tracking, no ads. Your reading progress, vocabulary, and settings are stored locally on your device.

Built by Cadmus Lab — digital solutions designed with the real world in mind.

নতুন কি আছে

- Curated for Learners with difficulty levels 1-5
- Sort by Popular, Newest, or Oldest
- Premium upgrade ($6.99, no subscription)
- In-app bug reports + feedback
- Faster browsing & image caching
- Full-screen Vocab, Chapters, Settings
- Dedicated Flashcards button