Workout · Nutrition · Recovery — free on iPhone
The workout tracker built around showing up
Log every set, meal and streak on a calendar of what you actually did. AI plans, readiness scores from your own baselines, and friends who keep you honest.
Free to start · 3-day trial on paid tiers
Silent screen recording of the StayFit iOS app in light mode. From the Home dashboard, the Workout tab opens and Barbell Bench Press is added from the exercise library. The session timer starts, set one is logged at 165 pounds for 8 reps and marked complete, and the rest timer appears. A second set is added and logged at 175 pounds for 6 reps. Finish Workout brings up the Workout Complete summary showing 2 sets and 2.4k pounds of volume.
Five tabs. Nothing you won't use.
The whole app fits in five tabs — here is what each one actually does.
Home
Your day on one screen — streak, weekly volume, calorie and macro targets, and the session your coach assigned.
Workout
Log set by set from a 1,981-exercise library, with a rest timer that never blocks the next set.
Calendar
Workouts, meals, photos and notes land on the month — a calendar of what you actually did.
Inbox
Messages, requests, challenge stakes and notifications, filtered in one place.
Profile
Health metrics, progress photos, achievements, friends and strength analytics — your whole history.
Train with a real coach
A human builds your program — every assigned session lands on your Home screen and calendar, and their messages arrive in your Inbox.
- Coach-built programs with sessions scheduled onto your calendar automatically
- Message your coach on any tier — coach conversations are never paywalled
- Your coach sees your health data only if you consent — every sharing toggle starts off
Silent screen recording of the StayFit iOS app in dark mode, signed in as a client with a coach. The Home dashboard shows the day's stats, the Calendar shows the month with today's completed workout marked, and the Inbox opens the Coach Reviewer conversation where a fresh message from the coach is waiting. The client types the reply "Booked it - see you then!" and sends it.
AI that's actually honest
An assistant that answers from your own workouts, food and recovery — with plain monthly limits printed on the pricing page, not vague promises.
- AI chat, food-photo analysis and workout generation, metered per month by tier — Plus gets 20 chats, Pro 100, Max 300
- The AI builder generates multi-day plans across 13 modalities, from strength to sauna
- Form Check scores 9 lifts using on-device Apple Vision — your camera feed never leaves your iPhone (paid tiers)
- Free tier includes 3 AI food analyses a month — and no AI chat. We say so instead of pretending.
Silent screen recording of the StayFit iOS app in dark mode. The Home dashboard scrolls to the StayFit Assistant card, which opens the assistant chat. The question "What should I train today given my recovery?" is typed and sent, a typing indicator shows while the assistant thinks, and a full answer arrives recommending a full-body or upper/lower split based on the user's recovery state, ending with a follow-up question.
Recovery you can see
Not a black-box score — a readiness number computed from your own data, and a body map of what needs rest.
Readiness from your own baselines
A daily score built from 28-day personal baselines — HRV, sleep, resting heart rate and bedtime consistency. It needs about two weeks of signal before it will score you, and it says so.
Apple Health, read-only
StayFit reads 10 metric types — including what your Apple Watch records — and writes nothing back. Ever.
A muscle map of what you trained
Per-muscle recovery windows computed from your actual workouts, scaled to the muscle and how hard you hit it. Oura Ring connects natively on Pro.
Friends who keep you honest
A social layer built from real training data — not another feed of thumbnails.
- 24-hour stories with templates drawn from what you actually logged — workouts, streaks, PRs
- 1v1 challenges over 7 to 60 days, with optional coin stakes
- A friends-only monthly leaderboard you explicitly opt into — no global boards, no strangers
- Share cards for workouts, streaks and badges, straight to Instagram Stories
Silent screen recording of the StayFit iOS app in light mode. From the profile screen, the Find People sheet opens, a search is typed, a matching account appears in the results, and tapping Follow switches the button to Following.
Coach your clients inside the app they already train in.
- A client roster with compliance tracking and consent-gated health views
- Programs from 1 to 52 weeks — assigned sessions land on your clients' Home screens and calendars automatically
- Get paid through Stripe
Start free. Upgrade when it earns it.
3-day free trial on paid consumer tiers — cancel anytime.
Free
$0/mo
No card, no trial needed
- Full workout logging — 1,981-exercise library
- Calendar, streaks and badges
- Food logging with search, barcode and 3 AI analyses a month
Plus
$6.99/mo
or $49.99/yr · 3-day free trial
- AI chat coach (20 messages a month)
- Daily readiness score from your own baselines
- Recovery & readiness history (30 days)
Recommended
Pro
$12.99/mo
or $89.99/yr · 3-day free trial
- AI workout builder + food photo analysis
- Direct messages, friends and leaderboards
- Native Oura Ring connection
Max
$29.99/mo
or $249.99/yr · 3-day free trial
- Everything in Pro
- Highest AI limits (300 chats / 100 food / 15 workouts a month)
- Priority support and early access
AI limits reset on the 1st of each month. Billed through the App Store.
Asked before installing
Show up. The calendar keeps the score.
Free to start · 3-day trial on paid tiers · no push notifications, ever