Training coach for iPhone and Apple Watch

A program that keeps up with you.

Three photos and a few answers become a program built around your body, your gym and your time. iris runs it with you set by set, and every week it adjusts to what you actually did.

See how it works Coming soon to the App Store

First assessment and first program free.

ProgramLegs First · 4 Days
Tap the button: the session ends and its box slides down the rope.

One loop, three steps.

Writing a program once is easy. Keeping it right, week after week, in a real gym, is the whole job. iris is built around that loop.

  1. 01AssessPhotos and your answers set the priorities.
  2. 02TrainThe program runs in the gym, set by set.
  3. 03AdjustEvery week the numbers move, with reasons.

01 · Assessment

Three photos. One order of priorities.

The camera guides you into place: a silhouette fixes the distance, the shutter waits until you hold still, and a photo that can’t be read is caught on your phone before it goes anywhere. What comes back isn’t a score. It’s which muscle groups come first for you, and how many sets each one gets.

  • Front, side and back, in the app or from your gallery.
  • Priorities from 1 to 5; weekly sets follow from them.
  • Posture is described as an observation, never a diagnosis.

    02 · Training

    In the gym, set by set.

    Weight and reps are already filled in: from the program the first time, from your last session after that. Finish the set, tap how it went, and the rest timer starts. There’s nothing to type.

    • Every change in weight comes with its reason.
    • When rest is over, your wrist taps or your lock screen lights up.
    • Works offline. The gym doesn’t need signal.

    03 · Adjustment

    Every week, four lines.

    Weigh in a few times a week. iris reads the four-week trend, where day-to-day swings cancel out, and compares it with the band your goal calls for. Then it writes four lines: what changed, why, what stayed, what’s next.

    • Calories move in steps of 200, never by feel.
    • Sets move two at a time, per muscle group, from your performance and effort.
    • Every four weeks, new photos re-rank your priorities. A one-step shift is noise, and iris says so.
    Goal
    Example · 80 kg Four-week trend

    This week’s report

    Principles

    Priorities, not flaws.

    iris never tells you what’s wrong with your body. It tells you what comes first. Tap a card to see how it says it.

    Three layers, always labelled.

    1. Measured

      What you enter and log: body weight, sets, reps, load. Shown as numbers.

    2. Inferred

      What the photos suggest: how muscle groups rank against each other, posture observations. Shown as an order or a sentence, never as a number.

    3. Can’t be measured

      Body-fat percentage, bone lengths, clinical posture, injury risk. iris says so, plainly.

    “I can’t see this clearly from this angle. Let’s look again at the next check‑in.”
    The most important sentence in the app.

    No body scores. No rankings. No comparing you with anyone else.

    Privacy

    Your photos are yours.

    Photos of your body are among the most personal things you can share. iris is built around that, not around the exceptions.

    • Checked on your phone

      Framing, light and pose are checked on the device. A photo that can’t be used never leaves it.

    • Encrypted on the way

      Photos travel over an encrypted connection, and only for the analysis.

    • No photo archive

      The iris server doesn’t keep an archive of your photos.

    • Your choice, one by one

      Health data, photo analysis and cloud backup are separate choices, all off until you turn them on.

    • Delete any time

      One session, or your whole account, sign-in included.

    • Not for sale

      Your data isn’t sold and isn’t used for advertising.

    iris is for adults. You declare that you’re 18 or over; your age is never guessed from a photo.

    Read the privacy policy

    Everywhere you train

    The session follows you.

    A program only works if it’s there when you are: on your wrist, on your lock screen, in the basement gym with no signal.

    • Apple Watch

      The whole session on your wrist: sets, rest, live heart rate. It works without the phone and syncs when they meet.

    • Lock screen

      The exercise, the set and the rest countdown on the lock screen and in the Dynamic Island. Weights stay off it.

    • Heart rate and Health

      Live heart rate from Apple Watch, compatible headphones or a Bluetooth strap. If you choose, sessions are saved to Apple Health as strength workouts.

    • Story cards

      Share a session as a card built from your own numbers. No scores, no comparisons.

    • Saved after every set

      Everything lands on your phone first. A session cut short still counts.

    Pricing

    The first program is on us.

    The assessment, your first program, logging every session and the rest timer are free. A subscription keeps the program moving.

    Free

    $0

    • Photo assessment and priorities
    • Your first program
    • Session logging and rest timer
    • Apple Watch app
    • Weigh-ins and weight-loss safety checks

    With a subscription

    • The weekly adjustment, with its reasons
    • A four-week reassessment from new photos
    • Edit the program: session length, priorities, exercises
    Save 58%
    Coming soon to the App Store

    US prices. The App Store shows the price for your country. Cancel any time in the App Store.

    Questions

    Good questions.

    Is iris a medical app?

    No. iris is a training app. It doesn’t diagnose, treat or assess any health condition, and it doesn’t build rehabilitation programs. If you have pain or an injury, talk to a doctor or a physiotherapist.

    Can iris tell me my body-fat percentage?

    No. It can’t be measured reliably from a photo, so iris doesn’t guess. It tells you which muscle groups come first instead.

    Do I need a full gym?

    No. Choose a full gym, a limited gym or home, and iris only picks exercises your equipment allows.

    What if I lose weight too fast?

    If the four-week trend shows you losing more than 1% of your body weight a week, iris eases the calorie deficit and tells you why. If your BMI is under 18.5, it won’t build a program with a deficit at all. None of this needs a subscription.

    Does it work without an Apple Watch?

    Yes. The watch is optional; the whole session runs on the iPhone.

    Who is iris for?

    Adults who already train, or have decided to start, and want a program built for them that keeps adapting as they go.

    When can I get it?

    iris is coming to the App Store soon, for iPhone (iOS 18 or later) and Apple Watch (watchOS 11 or later).

    More questions