Walken.io

Walken is a Web3 walking app that gamifies daily physical activity (walking and running) and makes sticking to a healthier lifestyle easy and fun. Grab your CAThlete - an in-game character - and go for a walk together. The more steps you take, the faster your characters make it to the next level.
HealthKit is used to synchronize with Apple Health and Activity, so that Walken can import step count data and distance.