Kaizumi

Kaizumi puts lean essentials in your pocket — a 256-term dictionary and four calculators, available instantly, no account required.

LEAN DICTIONARY — Search 256 terms covering lean, Six Sigma, and TQM. Each entry includes a clear definition, practical context, and cross-references to related concepts. — Look up takt time before a production meeting or revisit OEE fundamentals on the floor — the answer is always one tap away. — Favorite your most frequently referenced terms to quickly return to them

PRODUCTION CALCULATORS — Takt Time — set your production pace from shift length, breaks, and customer demand — OEE — measure availability, performance, and quality in one number — Finished Goods Inventory — size your supermarket correctly — Number of Kanban — quickly calculate how much inventory you need in your production process

Every calculator shows the result instantly as you type, with a plain-language explanation of what the number means and why it matters.

LEARN AND DO, CONNECTED — Dictionary entries link directly to the relevant calculator. Reading about takt time? Tap "Calculate it" and you're there. Using a calculator? Tap "Learn more" to deepen your understanding. Theory and practice in one flow.

BUILT FOR THE FLOOR — Works completely offline — airplane mode, factory floor, no signal required — No account, no sign-up, no data collected — Instant search across all dictionary terms

YOUR PRIVACY — Kaizumi collects zero data. No analytics, no tracking, no accounts. Your usage stays on your device. The App Store privacy label confirms it: Data Not Collected. — Whether you're a lean practitioner running daily improvement cycles or new to continuous improvement and building your vocabulary, Kaizumi is the toolkit that's always ready.