Reimagine how you build English vocabulary with FluencyDeck — combining intuitive swipe flashcards, SuperMemo SM-2 spaced repetition, and 25,000+ frequency-ranked words to help you achieve true conversational fluency.
Whether you are preparing for exams like GRE, TOEFL, or IELTS, refining your professional communication, or expanding your daily vocabulary, FluencyDeck delivers a distraction-free, privacy-first study experience.
KEY FEATURES
• Interactive 3D Flip & Swipe Flashcards
Learn faster with natural gesture-driven flashcards:
- Tap to flip cards in 3D and reveal plain-English definitions, examples, and synonyms.
- Swipe Right to mark a word as Mastered.
- Swipe Left to schedule for review.
- Swipe Up to bookmark your favorite words for quick revision.
• Scientific Spaced Repetition (SM-2)
Never forget what you learn. FluencyDeck utilizes the proven SuperMemo SM-2 spaced repetition algorithm, calculating optimal review intervals so difficult words reappear just as your memory begins to fade.
• 4-Stage Fluency Ladder (25,000+ Words)
Words are ordered by real-world spoken English frequency, ensuring you master everyday essentials before advanced terminology:
- Stage 1: Beginner Foundations (Ranks 1 – 3,000) — Daily essentials and common conversational words.
- Stage 2: Intermediate Conversational (Ranks 3,001 – 8,000) — Natural flow and professional discussions.
- Stage 3: Upper-Intermediate & Fluent (Ranks 8,001 – 16,000) — Expressive vocabulary, idioms, and articulate speech.
- Stage 4: Master & Erudite (Ranks 16,001 – 25,000+) — Academic literature, graduate exams, and sophisticated expressions.
• Dual US & UK Phonetics + Native Audio
- Listen to clear audio pronunciation for any word on demand.
- View accurate International Phonetic Alphabet (IPA) transcriptions with both US (🇺🇸) and UK (🇬🇧) dialect flags.
• GRE & Academic Exam Preparation
Access curated high-frequency academic vocabulary tagged with GRE badges, ideal for graduate admissions, SAT, ACT, and advanced English proficiency tests.
• 12 Real-World Topic Hubs
Explore vocabulary curated by topic domains: Business & Finance, Science & Technology, Emotions & Character, Mind & Philosophy, Nature, Society, Daily Life, and more.
• 100% Offline & Privacy-Friendly
- No account creation or login required.
- Your study decks, bookmarks, and spaced-repetition progress are stored locally on your device.
- Study anywhere, anytime — no active internet connection required for core flashcards.
Start expanding your vocabulary today with FluencyDeck!
Master vocabulary with smart spaced repetition flashcards and audio.