StepDerby

Cute walking races powered by real steps.

StepDerby turns everyday movement into a cheerful race. Pick a cat, set a step challenge, and watch progress move across colorful race tracks using step data from Apple Health.

Get support Read privacy policy
StepDerby history screen with saved races and trophy results
StepDerby race screen with cat racers and step totals
StepDerby profile screen for choosing a cat and theme

Built for friendly competition

A playful race layer on top of daily walking.

StepDerby keeps the fitness part simple and makes the motivation feel fun: real steps, cute racers, shared challenges, saved results, and glanceable progress on iPhone and Apple Watch.

HealthKit step progress Your cat advances with step counts read from Apple Health after permission is granted.
Shared challenges Create races, invite friends or family with iCloud, and compare challenge standings.
Saved race history Review trophies, saved races, leaders, step totals, and past results at a glance.
Cats and themes Choose a racer and race background, including seasonal styles as the app grows.

Preview

Four views from the current build.

Race screen showing live cat standings and step progress

Race

Watch cats move toward the finish with standings, step totals, and progress cards.

History screen showing saved races and trophies

History

Save completed races and review trophies, leaders, and past results.

Challenges screen for setting up shared races

Challenges

Create a challenge, set a goal, and prepare iCloud invites for other racers.

Profile screen for selecting a cat and race theme

Profile

Pick your cat, choose a theme, and personalize the racer that represents you.