Penguen: Vocabulary Flashcards

Master vocabulary in 26+ languages. Completely free, forever. No subscription. No ads. No paywalls. Ever. penguen.io uses science-backed spaced repetition to show every word exactly when you are about to forget it - so words stick permanently. WHY PENGUEN.IO? While other vocabulary apps charge monthly fees or hide features behind paywalls, penguen.io gives you everything free. That is not a trial. That is how it works. ★ KEY FEATURES • Spaced Repetition Flashcards - reviews scheduled at the perfect moment • Multiple Choice - instant-feedback quizzes • Fill the Letters - master spelling letter by letter • Match the Pairs - connect words to meanings in a fast game • Dictation - hear the word, write it down • Listen and Choose - train your ear with real audio ★ EXAM COLLECTIONS • IELTS: Academic and General word lists, Band 6-8 • TOEFL iBT: High-frequency academic vocabulary • Cambridge FCE / CAE / CPE: Level word sets • PTE Academic: Pearson test vocabulary • Duolingo English Test: DET high-frequency words ★ STUDY IN YOUR LANGUAGE 26+ interface languages. Learn English from Turkish, Spanish from Japanese, or any language pair - naturally. ★ 644+ CURATED COLLECTIONS A1 Beginner to C1 Advanced. Business English, Academic English, Travel vocabulary, daily conversations. Build your own and share with the community. ★ TRACK YOUR PROGRESS • Daily learning heatmap - see your consistency at a glance • Streak tracking - stay motivated every day • Accuracy stats per collection - know which words need more work • Global leaderboard - compete and climb weekly rankings ★ WHO IT IS FOR • ESL learners building vocabulary from their native language • Students preparing for IELTS, TOEFL, Cambridge, PTE, or DET • Professionals expanding business or academic vocabulary • Anyone who tried Anki and wanted something cleaner and free • Anyone who hit the Quizlet paywall - penguen.io is free forever Join 50,000+ learners every day. Completely free. No catch.