Kiiro
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What Kiiro shows you

Your Apple Watch records the data. Kiiro answers the three questions runners actually have: am I doing the right amount, at the right intensity, and is it working?

Kiiro training load chart

Too much, too little, or about right? One status, updated after every workout, built from your heart rate.

 Kiiro heart rate zone distribution

See the time you really spend in each zone, per workout and across months. Spot easy runs that were not easy.

 Kiiro route history

Run the same route twice and Kiiro lines the efforts up automatically. Pace, heart rate and effort, side by side.

 Kiiro VO2 max trend

The VO2 max your Apple Watch estimates, charted over time next to resting heart rate, HRV and running form.

Also in Kiiro

  • Every workout, broken down: maps, splits, charts and zone breakdowns for each session.
  • Goals and streaks: set weekly targets and see whether you are on track.
  • Full training history with weekly and monthly summaries.
  • Friends: add friends and see how everyone's training week is going.
  • No setup: Kiiro reads your existing workouts from Apple Health. No manual uploads, no extra hardware.

Free on the App Store. Syncs with Apple Health in seconds.

Download Kiiro on the App Store