basicEnglish850 vs Kay English Learning

Learn the 850 core English words selected by linguist Charles Kay Ogden — the foundation of Basic English communication. FEATURES • 850 carefully curated vocabulary words • Flashcard quiz with swipe gestures • Learning progress tracking with daily streaks • Star words for focused review • 5 beautiful themes: Clean, Warm, Night, Paper, Play • Chinese and Japanese translations included • Works fully offline — no internet required ABOUT BASIC ENGLISH 850 In the 1930s, linguist Charles Kay Ogden identified 850 words sufficient to express any idea in English. Mastering these words provides a powerful foundation for English communication. LEARNING APPROACH Browse words by category, study details with example sentences and collocations, then test yourself with the flashcard quiz. Your progress is saved automatically on your device.

Kay is a full English learning app—not flashcards alone. Study real video and audio with captions, grow vocabulary with a clear memory system, and use AI when you need deeper help. VIDEO & LISTENING • YouTube caption study: tap any word, bilingual lines, karaoke-style follow-along, and a focused player built for learning • BBC 6 Minute English: pre-listening questions, word-level follow, favorites, sentence loop, search & filters, saved progress • Family Album, U.S.A.: full-series listening with cleaner intros and tighter highlighting • Offline video cache with resume—keep studying on the go VOCABULARY & REVIEW • Mark words Unfamiliar / Fuzzy / Mastered / Known—Known words leave daily review • Unified Today Study: reviews first, then new words • Flashcards, practice drills, and listen-along share one progress model • IPA, UK/US audio, definitions, examples, and synonym notes • Optional Ogden Basic English 850 and Basic 1368 word lists for a clear foundation • Study Core 3000 and Core 5000; Longman 3000 is coming soon for the next common-word list AI STUDY TOOLS • Sentence generation, writing coach, and English diary feedback • Deep word analysis, memory cards, and word-family maps • In-context explain for a word inside the current subtitle or sentence COURSES & NOTES • New Concept English courses with progress and mastery filters • Text notes with karaoke highlight, font controls, and import • Select multi-word phrases and mark familiarity ACCOUNT & PRO • Sign in to sync study data across devices; monthly learning board • Free core learning; AI Pro / Pro+ for higher AI limits, AI captions, and expanded offline • Daily word home-screen widget • No ads Privacy: study progress stays on device and can sync when signed in. Minimal first-party analytics help improve reliability—no third-party ad SDK. Kay is for learners who want English from real media plus a serious word system—not another isolated word list. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/