How it works
An AI fitness tracker that logs what you say and tells you what to do next.
No forms. No dropdown menus. Tell your AI specialists what you did in plain English. They log it, analyze it against your full history, and answer the question you actually asked, backed by data.
Free · Now on iPhone · Syncs Apple Health, Fitbit & Oura
Three steps
From sign-in to a real conversation in under a minute.
Sign in with Apple or Google
One tap on iPhone, Android, or the web. We never ask for a credit card. Free during early access.
Connect what you already wear
Apple Health, Fitbit, Oura, Google Health Connect, everything you’re already syncing flows in. We dedupe overlapping streams and use the highest-quality source for each metric.
Tell your specialists what you did
Type a sentence, snap a photo, let Casey scan today’s camera roll, repeat a usual meal, or just say "slept 6.5 last night." Whatever you’re holding when the moment hits, that’s how you log it. They itemize, estimate, and tell you what it means in the context of the rest of your data.
See it on the dashboard
Six scoring components (Train, Sleep, Fuel, Recovery, Steps, Wellbeing) roll into a single Fit Score that updates in real time. A dozen tracking modules sit below it. Long trends are one tap away, and the dashboard reshapes itself around what you've enabled.
Get pushed when it matters
A PR. A 12-week plateau. A sleep score crashing. A protein streak you should know about. Notifications come from your specialists, not from a generic notification center.
What makes it different
Specialists, not chatbots. Patterns, not single readings.
Named specialists
Eight named AI specialists, each with a distinct domain, voice, and depth, plus a generalist Wellness Helper that routes you to the right one. Nine total. Not one chatbot pretending to know everything.
Pattern-aware analysis
Every reply is grounded in your last 30+ days. Not "8 hours of sleep is good." It’s "you’ve been under 6.5 on Tuesdays for 4 weeks, here’s what to fix."
Wearable-native
Apple Health, Fitbit, Oura, Health Connect, and more. Your existing data layer flows in automatically.
Five ways to log
Type it, snap a photo, scan today’s camera roll, repeat a usual, or fix the macros after the fact. Whichever one fits the moment, you’re three taps from done.
Insight engine
A daily and weekly digest of what changed, what to repeat, and what to stop doing, based on your numbers, not generic advice.
Friend challenges
Step wars, sleep streaks, lifting battles. Your specialists track it; your friends compete on it.
FAQ