Arth (अर्थ, "meaning") helps you read English books with Hindi at your side. Open a PDF, EPUB or a photo of a printed page, tap any word for its meaning, or a whole sentence for its Hindi translation — right where you're reading, without leaving the page.

READ ANY BOOK
• PDF, EPUB, TXT, HTML, ODT, DOCX, FB2, RTF, and photographed pages (Pro and Super)
• A block-print cover and a progress bar for every book in your library
• Bookmarks bring you back to exactly where you left off

UNDERSTAND EVERY WORD
• Tap a word for its meaning, part of speech, pronunciation and example sentences
• Tap a sentence for its Hindi translation and a simpler explanation
• A dictionary of common English words works fully offline — no internet needed
• Rarer words and sentence-level meanings use AI, so the explanation fits the sentence you're actually reading

REMEMBER WHAT YOU LEARN
• Turn any word, quote or idea into a flashcard as you read
• Practise with spaced review, and get reminded when it's time
• See every word you've ever looked up, book by book or across your whole reading life
• Export your cards as a PDF, in a font you choose, to keep or share

READ TOGETHER
• Share a recap of a book's flashcards with other readers (Pro and Super)
• Browse recaps others have shared, save the ones you like, comment and discuss

BUILT FOR HOW YOU ACTUALLY READ
• Works fully offline for anything already on your phone
• Sync your cards, bookmarks and progress across your devices by signing in
• Choose from several fonts for your flashcards
• Light and dark themes, and an interface in English or Hindi

Arth is free to start: a generous number of AI-assisted answers, reading and flashcards. Pro and Super remove ads, raise your AI allowance, and unlock photographed-page reading and the shared community of readers.