Infinite Memory Grid

Train your short-term memory in under five minutes a day. Infinite Memory Grid is a focused memory gym built around one honest exercise: a grid flashes a pattern, then goes blank, and you tap it back. Succeed and the grid grows — 3x3, 4x4, 5x5, 6x6 — with faster flashes and no ceiling. Why it works: • Three numbers tracked for life — span, accuracy, level — rolled into one Memory Index (0–1000) that moves slowly and honestly • A daily program of three short blocks, identical for everyone on the same calendar day • Four grid modes — Classic, Path, Reverse, Blink — plus card-pairs, tap-sequence and memory-technique quiz drills • A techniques library teaching method of loci, chunking, the major system, pegwords, spaced review and dual coding, each with a practice drill • Full progress tracking: a 30-day Memory Index curve, span chart, streak calendar, per-drill bests table and CSV export • Works fully offline — the daily program is generated on-device using the same rule as the server, so nothing ever stops No accounts. No logins. No leaderboards. No friends. No sharing with other people. Just an anonymous, on-device identity that lets your history survive a reinstall. Open it, see today's three blocks, tap Start. A block takes forty to ninety seconds. Finish all three and your streak extends. That's the whole loop — quick, quiet, and measured. Built for anyone who feels their recall slipping, students who want a warm-up before study, and anyone who likes a short daily test with a real number attached.