Just show up.

    Built for Apple Watch. I read your sleep, HRV, and recovery — and turn them into today's training. Gym, hotel room, or the floor at home. You only need to show up.

    iOS·Apple Watch required
    10:09

    Upper · Strength

    4 exercises

    62
    High Risk
    MESSENGER
    5m ago

    How about going on a date this afternoon at 4 o'clock, dear...

    9:41
    Dorsi
    Sharing your session

    Strength + hypertrophy

    — Progressive overload with volume management

    History: imported

    — Continuing from your existing progression

    Recovery signals: connected

    — Sleep and HRV data inform session timing

    Time: ~45 min

    — Standard session structure

    Session ready.

    Everything else, I'll figure out as we go.

    Suppress talking

    Training decisions, simplified

    Most people quit fitness not because they're lazy, but because of decision fatigue: Should I train today? What should I do? Is this enough? Every question is a chance to give up.

    Before you open the app, I've already read your sleep, HRV, and resting heart rate. The first call is mine — today is for full intensity, a lighter session, or rest.

    Then the dose. Based on your recovery and recent sessions, I shape the session: enough to move you forward, not enough to bury you for the rest of the week.

    When the work is done, I say so plainly. "That's probably enough for today." No hero set you pay for on Thursday. No guilt about stopping. One question, not three — show up or don't.

    Who I'm built for

    You're already training — at a gym, at home, or both. You wear an Apple Watch, so the signals are already there. What you don't want is to keep being your own programming coach: deciding sets, reps, what to swap when the rack is taken, when to back off because you slept badly. If you've cycled through Hevy, Strong, or Fitbod looking for a strength training app that actually uses your Apple Watch data, you've probably felt this.

    That's the part I take. Strength sessions and body-weight movements — barbell, dumbbell, machines, push-ups, pull-ups, body-weight squats. Not tracking a 10K, not following a HIIT video, not learning the bench press from scratch.

    Designed for your daily rhythm

    Home Screen — Week rhythm view
    Chat — Conversational plan generation
    Session Summary — Post-training feedback

    Screenshots from the Dorsi iOS app

    A complete loop from session one

    Tell me your goal, and I build the plan.

    Tell me what you want, how much time you have, and how you're feeling. I put together a plan that fits your day. No training theory required.

    I adjust as the session unfolds.

    Suddenly short on time? More tired than expected? Say the word — I reshape the rest of the workout on the spot.

    Every session teaches me more.

    After training, tell me how it felt. Your feedback shapes the next session — every workout gets a little sharper.

    Dorsi's already thought it through

    Suddenly short on time

    Say "only 20 minutes" — I compress the plan on the spot, keeping what matters most.

    Skipped a few days

    Life happens. I reassess where you are and adjust what comes next.

    Not feeling it today

    Period cramps, bad sleep, low mood — just say it. I lower the intensity on the spot.

    Goals changed

    Switching from fat loss to muscle gain — I reshape the cycle, no restart needed.

    Gym day, hotel-room day, living-room day

    Same plan logic, different equipment. Tell me what you've got — barbell, dumbbells, or just floor space — and I rebuild today around it.

    Recovery signals off

    Low HRV or poor sleep from your Watch — I suggest a lower load before you ask.

    iPhone + Apple Watch, in sync

    Plan and chat on iPhone. When you train, your Apple Watch keeps sets, reps, and heart rate in view. Start on either device — both stay in sync.

    Dorsi iPhone training screeniPhone
    Watch — Companion training interfaceApple Watch

    Why Apple Watch only — for now

    I could read Whoop or Oura too. The plumbing isn't hard. What's hard is making the call right when signals from different sources disagree — and the more I take in before I've earned trust on one, the noisier my judgment gets.

    So this version reads only what your Apple Watch sees: HRV, resting heart rate, sleep, daily heart-rate patterns. HRV-guided training has decades of research behind it; my job is to read those numbers correctly first, then expand. Until then — fewer signals, sharper decisions.

    Your day could look like this

    Morning
    I read last night's sleep and suggest easing today's intensity.
    Noon
    Overtime shows up. You tell me "only 25 minutes." By the time you look, the plan is already compressed.
    At the gym
    Open your phone and follow along. Simple cues, nothing flashy.
    After
    I check in: “That's probably enough for today.” You leave feeling good.
    Dorsi

    I know my boundaries

    I'm a wellness companion, not a medical device. I suggest — I don't diagnose or prescribe. If something falls outside what I can safely judge (acute pain, dizziness, anything unusual), I'll point you to a healthcare professional.

    You might be wondering

    Who is Dorsi for?

    You're already training — gym, home, or both — and tired of being your own programming coach. You wear an Apple Watch. You want today's sets, swap-outs, and "that's enough for today" calls to just happen. If you're starting from zero with no experience, or you don't have a Watch, this isn't the right fit yet.

    How do you know if I should train today?

    I read several signals together — sleep, HRV, resting heart rate, and anything you tell me — to judge where you are today, and suggest whether to train and at what intensity. The more signals I can see, the sharper the call.

    How is Dorsi different from other fitness apps?

    Most apps log what you did or hand you a fixed plan. I'm built differently — I read your body's signals, listen to what's going on in your life, and adjust your training as it unfolds.

    Do I need an Apple Watch?

    Yes — Apple Watch is required. The decisions I make depend on reading your sleep, HRV, and resting heart rate from your Watch. Without those, I'd be guessing — and I'd rather not.

    Does this work without gym equipment?

    Yes — gym day, hotel room, or just floor space at home. Tell me what you've got and I rebuild the session around it. The focus right now is strength + functional movement (barbell, dumbbell, machines, push-ups, pull-ups, body-weight squats), so HIIT classes and follow-along cardio aren't where I shine.

    Is it free?

    Yes — I'm completely free during the beta period. Open the TestFlight beta from any button on this page.

    How do I get access?

    I'm in TestFlight beta now. Click any "Open Beta in TestFlight" button on this page to get the link — copy it to your iPhone, scan the QR code, or open it directly if you're on iOS.

    Just show up.

    Should you train, what to do, when it's enough — I handle every workout decision so you don't have to.

    Free during beta · Apple Watch + iPhone required