OgdenSpine

Say almost anything in English with just 850 words. In 1930, linguist Charles Kay Ogden proved that 850 carefully chosen core words can express 90% of everyday English. Ogden's Spine turns that timeless system into a daily magazine, a structured 88-lesson speaking & sentence course, and a suite of fast vocabulary games—now designed from the ground up for iPhone and iPhone Duo. WHY 850 WORDS WORK Most learners stall at 5,000+ isolated flashcards they never use in real conversation. By mastering 850 high-leverage words (Operations, General Things, Picturable Things, Qualities, and Opposites) and how they combine, you build a clear, confident English spine you can actually speak and write with. WHAT'S INSIDE • Today Magazine Cover: Daily curated word sets, spaced-repetition flashcards, camera object capture, and 30-day cadence tracking. • Sentence Club (88 Scenes · 2,200 Sentences): Structured daily situations with word-by-word pronunciation scoring, listening, cloze, and sentence building. • On-Device AI Sentence Coach: Practice writing your own sentences and get instant, private grammar and naturalness feedback right on your device. • Word Atlas: Browse, search, and inspect all 850 Basic English words with full definitions, examples, collocations, and opposites. • 7 Training Games: Speed Review, Mirror (opposites), Dungeon Run, Sentence Surgery, Listening Cast, Phrase Workshop, Context Detective, and the new Sort Rush. • Writing Sandbox: Draft essays or diary entries with live 850-word coverage analysis. • Built for iPhone Duo: Study two panes side-by-side when unfolded, use Tabletop mode hands-free, or review one-handed on the outer display. Supports English, Simplified Chinese, Traditional Chinese, Japanese, Korean, Spanish, and French explanations. Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/