Based on cardio fitness
The app estimates fitness age using its cardio-fitness and VO2-max approach.
Features / Train
Another way to follow your fitness.
An estimated fitness-age view adds context to your cardio progress.
Invite-only beta · Feature availability depends on setup and testing.
Real beta screen · Sample profile, not a promised result
What it does
Follow a fitness estimate alongside your actual activity records.
Track the direction
Use changes over time alongside your workouts and other progress records.
Understand its limits
Fitness age is an estimate, not a medical diagnosis or a measure of every aspect of health.
How it connects
Keep the conversation going.
Invite-only beta
Make your next day
a little more purposeful.
Explore an app built around how you eat, train, shop, and live.
A web app for your phone or computer. No app-store download required.