Startline is the strength, prehab, and mobility work woven around your running — an AI coach that tracks every niggle, builds the plan, and adapts it day to day. Not another run tracker.






Tell it what's nagging — Achilles, shins, hip. It tracks each one and works around it instead of pretending you're fresh.
Routines, exercises, and objectives — scheduled onto today and the week, and reshaped the moment your body changes.
Morning, post-run, evening. Tell it how you feel in your own words and the day adjusts around it.
Startline is in a small private alpha. If you've got an invite, jump in.
Open the app →