After your session
Just say it.
Talk to log. Kin transcribes the session — lifts, runs, rides, a Pilates class — parses what mattered, and files it. The whole thing from the kitchen counter.
Built around you
Text or voice, anytime. Powered by Claude, Kin remembers your goals, your history, and what your body needs today.
A vertical planning board with sessions, meals, rest days and notes — strength, Pilates, runs, rides, all in one rhythm. Scroll through the week, day by day.
Tell Kin what changed — an injury, a late night, a new goal — and your week and meals reshape to match.
A daily readiness score tells you when to push and when to rest — so training fits the life you're living.
Who Kin is for
For every kind of movement
Strength, Pilates, yoga, runs, rides, swims — Kin programs across disciplines and remembers what each one feels like for you. Log a session in one sentence: "four sets of five deadlifts at 100" or "Pilates class, 60 minutes" — and the session is filed.
For returners
No judgment about the gap. Kin ramps gently, builds the volume back, and won't quietly assume the version of you from two years ago.
For busy lives
Travel, deadlines, sick kids — move Tuesday's session to Friday, swap the squat for something the hotel gym can do, and the plan stitches itself back together.
For tracker fatigue
Tired of dropdowns and eight-tap session entry? Kin works through conversation, whether you're logging a deadlift, a long run, or a yoga flow. The product is the conversation.
How it works
A short onboarding chat. Your goals, how you like to train, anything to avoid. No forms — just talk.
Kin drafts sessions, meals and rest days tailored to you — across whatever mix of movement fits your life. A morning briefing greets you each day.
Chat or speak with Kin to adjust anything — a swapped session, a skipped meal, a rough night. The plan follows.
The small things
FAQ
AI. Kin is built on Anthropic's Claude — you're talking to a model that's been carefully instructed how a thoughtful coach should think, not to a human. The point isn't to replace 1:1 personal training; it's to give people who can't access (or afford) that something far better than another tracking app.
People who train but don't want to plan. If you're already deep in a custom programming spreadsheet you love, you don't need Kin. If you're looking at a blank week wondering what to do — or you've drifted from your routine — that's exactly where it fits.
No. Kin runs on iPhone. An Apple Watch isn't required and isn't currently used for live workout tracking — voice and text are the primary inputs.
All of it. Strength, runs, rides, swims, Pilates, yoga, conditioning, rest — whatever fits your goal. The plan adapts across disciplines, and conversational logging works for any session you can describe in a sentence.
Those are tools — they store the workout you already planned. Kin is closer to a coach: it remembers your goals and history, drafts the week, adapts when you skip or move things, and answers questions in plain language. Logging is part of it; planning and adapting is the point.
Tell it. The whole interaction is conversational — push back, ask why, change it. Kin adjusts inside the conversation; it doesn't bury you in settings.
No. Conversations are sent to Anthropic's Claude API to generate responses, and under their API data usage policy they don't train on this data. Your conversation history and workouts are stored on your device and optionally synced to your encrypted account. You can delete everything from Settings at any time. Full privacy policy.
Voice logging and conversational replies need a connection — they're processed on Anthropic's servers. Your existing plan and previously-logged sessions are available offline so you can still train without it.
$9.99 a month after a 7-day free trial. Cancel any time directly in App Store settings — no email required, nothing to call.
Yes. Tell Kin where you're starting and what you're hoping to do. The plan begins where you are, not where you wish you were.
Pricing
Try Kin with no commitment. Cancel anytime.
Membership
$9.99/month
7-day free trial · Billed monthly after trial