Mental Math Trainer: Hone

NEW: Construct — build the number from tiles, left to right. Always solvable, quietly addictive.

Hone Math is the mental-math workout built for adults—not kids. A few focused minutes a day to sharpen your calculation, build a daily habit, and watch your Mental Math Index climb.

Most math apps are built for classrooms, with cartoon characters and gold stars. Hone is different: a calm, grown-up space to get genuinely faster at the numbers you use every day—splitting a bill, checking a total, estimating on the fly.

THE DAILY WORKOUT A short, finishable set—about three minutes. Do it on the bus, in line, or between meetings. Finish it and your streak grows. Small and consistent beats long and rare.

ONE NUMBER THAT MATTERS Your Mental Math Index (0–1000) blends accuracy, difficulty, and speed into a single score you can actually watch improve. No grades, no gold stars—just an honest measure of how sharp you are, trending over time.

ADAPTIVE BY DESIGN Problems tune themselves to you. Nail a streak and they get harder; slow down and they ease back. You always train at the edge of your ability, where real gains happen—never bored, never overwhelmed.

QUICK PLAY, ANYTIME Want more than the daily set? Quick Play is endless practice you can stop whenever you like.

HONE PRO Go further: track your weekly trend, see your strengths and weak spots by operation, and train every operation—addition, subtraction, multiplication, and division.

WHY HONE • Built for grown-ups, with a calm, editorial design • Adaptive difficulty that meets you where you are • Works offline—your data stays on your device • No ads, ever • Light or dark: pin a theme or follow your phone

Three minutes a day. Sharper every week.

Works great on iPhone and iPad, portrait or landscape.