Coach Kai

Kai remembers every lift, every injury, every preference — so your next workout always starts where the last one left off.

Coach Kai: A Personal Trainer In Your Pocket.

The easiest way to create, schedule, and share a workout with friends.

Talk to Kai like you'd talk to a coach, and it gets it. Tell it what you want, and it builds the workout. No menus, no templates, no fitness-speak required. It’s simple and efficient.

It remembers how your last lift felt and adjusts before you even ask. It builds calendar the moment you agree on a plan. And it syncs with Apple Health automatically, so nothing you do falls through the cracks.

See the moment a friend starts training — live, not just after they're done. Save any workout you want to keep, and it's ready to run again anytime. Add friends and build a weekly streak together, give each other props for a session well done, and send a nudge when someone's gone quiet. And the longer you talk to Kai, the more it remembers — old injuries, favorite lifts, the stuff you'd only tell a real coach.