万歩計 · since 1965
Ten thousand steps was a slogan.
Manpo counts your day honestly, matches Apple Health, and shows the research that replaced the number.
Shows its work
- 1Your iPhone counts when it moves with you.
- 2Your Watch counts from the wrist.
- 3Health drops the minutes both devices counted.
- 4Manpo shows that total, and the time of the reading. Tap it to see this sum for your own day.
One number, three places
Four promises
Sick and travel days pause it. Every day is judged in the timezone you lived it.
Every widget and complication shows the time of its reading, never a stale number pretending to be live.
Walk a week with people you know. Days met is the score, so a 6,000 walker and a 12,000 walker compete as equals.
No subscription, no account, no ads. Nothing leaves your phone.
What the research says
steps a day, where benefit levels off for most adults
Ding et al., Lancet Public Health 2025lower all-cause mortality per extra 1,000 steps a day, in pooled cohorts
Banach et al., Eur J Prev Cardiol 2023the manpo-kei, and the 10,000 that came with it
Yamasa Tokei KeikiComing to the App Store, autumn 2026
iPhone and Apple Watch. One purchase for Pro, and the honest number is free. Until then, the arithmetic is explained on this page.