Zonometry

Find your training balance with Zonometry.

Turn your Apple Health workouts into a colourful picture of time spent in easy, moderate and hard heart-rate zones. A tactile running track brings your training mix into focus, from a single day to six months.

SEE THE WHOLE PICTURE Explore days, weeks, months and six-month views. Review time in zones, heart-rate readings and workout effort.

EVERY RUN, IN DETAIL See your recorded route coloured by heart-rate zone, running metrics, intervals, estimated kilometre splits and post-workout heart rate. Available details depend on what your workout recorded and your Apple Health permissions.

FOLLOW YOUR CARDIO FITNESS View VO₂ max from Apple Health with a compact trend chart. Open it for recorded measurements and age-based reference bands. Past periods show their final recorded measurement. Run reviews include linked or nearby readings with their timestamps.

MAKE IT PERSONAL Adjust your heart-rate limits, minimum heart rate and training targets. Count recorded workouts or include everyday heart-rate readings. Choose heart-rate time or workout effort as your main view.

RECORD HOW IT FELT Review and adjust workout effort ratings, with Apple Health integration on supported iOS versions.

A LITTLE ATMOSPHERE Let local weather bring the track to life with sunlight and leaf shadows, drifting clouds, rain, snow and night lighting. Use your approximate location or choose a city.

PRIVATE BY DESIGN Your health data is processed on your iPhone. No account, advertising or tracking SDKs. You choose what Zonometry can read in Apple Health.

Zonometry is free for iPhone. Heart-rate views require heart-rate readings in Apple Health. You can also explore an example week before connecting.