Riffle - English Book Reader

Riffle: Smart English Learning Through Reading
Turn your everyday reading habit into an effective language learning experience.

Revolutionize Your English Learning
Riffle is a thoughtfully designed English reading companion that makes vocabulary acquisition natural and enjoyable. Perfect for language learners at any level who want to improve their English through authentic reading materials.

Key Features
- Instant Word Help
Tap any unfamiliar word for instant translation and detailed information
Smart recognition handles different word forms (plurals, tenses)
Access comprehensive dictionary definitions without leaving your book
- Creative Learning Activities
Engage with your vocabulary through interactive fiction stories
Generate illustrated stories using your vocabulary words
Practice dialogue exercises in context-rich scenarios
- Effortless Vocabulary Building
Build your personal vocabulary collection as you read
Review words in their original context for better retention
Organize and track your growing word collection
- Scientific Spaced Repetition
Master vocabulary through proven spaced repetition techniques
Personalized review schedules optimize your learning efficiency
Track mastery progress for each word in your collection
- Interactive Learning
Practice pronunciation with high-quality text-to-speech
Customize audio sequences for comprehensive practice
Collect and review useful sentences from your reading
- Smart Reading Experience
Enjoy your favorite EPUB and PDF books in a clean, customizable interface
Personalize your reading with adjustable fonts, styles, and dark mode
Track your reading progress across multiple books

Riffle transforms challenging English reading into an engaging, effective learning journey. Download today and take your English vocabulary to the next level through the books you already love.