Poly-Puff

Poly-Puff is an AI-powered English learning app built around personalized translation practice, grammar mastery, and real conversational skills - from complete beginner (A0) through advanced (C2).

WHAT YOU CAN PRACTICE
• Translation Trainer - translate sentences from your native language into English, with instant AI feedback tailored to your level
• Grammar Practice & Grammar Quiz - targeted exercises drawn from a structured grammar rule bank covering the areas learners actually get stuck on
• Vocabulary & Word Chunks - build your word bank with spaced repetition and natural phrase patterns
• Listening - train your ear with real-paced English audio and comprehension checks
• Writing Practice - get AI feedback on your writing, from short answers to full compositions
• Daily Challenge - a new mixed-skill exercise every day to keep your streak alive
• Placement Test - find your CEFR level (A0-C2) with an assessment that grades your writing and speaking, not just multiple choice

LEARN YOUR WAY
Tell Poly-Puff about your profession, interests, and native language, and exercises adapt to give you practical, relevant sentences instead of random textbook filler.

STAY MOTIVATED
Track your XP, streaks, and badges as you progress, and compare your progress on the community leaderboard.

FOR TEACHERS
Poly-Puff Classroom lets teachers create a classroom, assign exercises, and track student progress in one place.

Poly-Puff is free to start, with optional Pro and Teacher plans that unlock deeper practice and classroom tools.

Recent changes:
New this update:
• Earn achievement badges and track your streak on the Progress page
• Pro members get free monthly streak freezes so one missed day won't break your streak
• Generate a shareable certificate proving your English level - great for job, school, or visa applications
• Refer a friend - you both get free AI prompts when they join and verify their email
• Try Poly-Puff Pro free for 14 days, no credit card required