Finally understand
your training.
Kiiro turns your Apple Watch workouts into insights you can actually use. No sports science degree required.
You're tracking everything.
Understanding nothing.
Apple Watch gives you data. Lots of it. But is your training working? Are you pushing too hard? Not enough? Should you rest tomorrow or push through?
Most apps just show you more charts.
Kiiro tells you what they mean.
Training load that
makes sense
Kiiro uses proper training load algorithms — the same science coaches use — but presents them in a way that's obvious to everyone. See your fitness building. Spot overtraining before it spots you.
Built on proven sports science,
not guesswork.
Everything you need to train smarter
Workout Activity
Every session, broken down. See what you actually did — not just that you did it.
Zone Distribution
Are you actually training in the right zones? Find out at a glance.
Route History
Run the same route twice? Compare yourself to your past self and see the progress.
Up and running in
30 seconds
Download Kiiro
Free on the App Store
Connect HealthKit
We sync your existing workouts automatically
Start understanding
No setup, no manual entry, no friction
Your complete
training picture
Track your progress. Spot the patterns. See your fitness evolve.
Questions?
We've got answers.
Do I need a specific watch?
Works with any Apple Watch. We pull data from HealthKit, so if your workouts are there, we can analyze them.
Is it really free?
Yes, for now. We're a small team building something we'd want to use ourselves. Premium features are coming, but the core will stay free.
How is this different from the Fitness app?
Apple shows you what happened. Kiiro helps you understand what it means and what to do next.
Train smarter.
Starting now.
You're ready.