iPhone · Apple Watch · AirPods Pro 3 · Siri

Track every set.
Track every beat.

Say “Start today’s workout” to Siri on your iPhone or Apple Watch, log sets by voice, and see your heart rate on every set — from your Watch or AirPods Pro 3. Strength, HIIT and core training for every level.

Try it free for 7 days.

1,324
Built-in exercises
Per-set
Heart rate · Watch or AirPods
Multi-week
Programs · home or gym
7 days
Free to try
At a glance

Everything in Iron Karnet

One app for your training, your heart rate and the rest of your routine. Tap any feature to see it in action.

What makes it different

Your workout, live and connected

Per-set heart rate from your Apple Watch or AirPods Pro 3, mapped to every exercise — the core of how Iron Karnet trains with you.

Live workout stream

Start on your wrist. Watch it live on your phone.

Begin a workout on Apple Watch and your iPhone turns into a live dashboard — current heart rate, reps, sets, and step-by-step exercise instructions, all streaming in real time as you train.

  • Start workouts from Apple Watch
  • Live heart rate, reps & sets on iPhone
  • Animated exercise demos on your wrist — and in HD on iPhone
Heart rate, your way

No Apple Watch? No problem.

Iron Karnet reads heart rate from whatever you're wearing. Start on your Apple Watch for wrist heart rate, or train with just your iPhone and AirPods Pro 3. No device at all? Every workout still tracks sets, reps, volume and progress.

  • Live heart rate from AirPods Pro 3 during iPhone workouts
  • Animated demos and step-by-step instructions for most exercises — in HD on iPhone
  • Rest timer between sets, with one-tap water logging
Heart-rate insights

See which exercises drove your heart rate

After every session, Iron Karnet maps your heart rate to each exercise you performed — so you can see exactly which movements spiked your effort and how your intensity flowed across the whole workout.

  • Tap any exercise to see it on your heart-rate chart
  • Average and peak heart rate for every exercise
  • Time in zones and heart rate for every set
Workouts & planning

Train your way

Ready-made workouts and programs, circuits you design and plans you schedule — then see how far you’ve come.

Workouts & programs

Ready when you are.

Pick a ready-made workout for today, or follow a multi-week program built for home or the gym. Filter by time, category or equipment. Prefer your own routine? Build it, or scan a friend’s QR code to import theirs.

  • Ready-made Strength, HIIT and Core workouts, filtered by time and equipment
  • Multi-week programs from beginner to advanced, home or gym
  • Build your own, or import a friend’s by QR code
HIIT circuits

Manage your HIIT circuits

Create and arrange circuit-based HIIT workouts — group exercises into circuits, set work and rest, and fine-tune the flow before you train.

  • Group exercises into circuits
  • Set work & rest intervals
  • Reorder and fine-tune the flow
Scheduled workouts

Plan it on your phone. It's ready on your wrist.

Schedule a workout in the app and it syncs straight to your Apple Watch — so when it's time to train, it's already there. No setup at the rack, just start and go.

  • Schedule workouts in the app
  • Missed a workout? Choose to skip it or slide it to your next training day
  • Auto-syncs to your Apple Watch
  • Ready to start when you are
Progress & Analytics

See how far you've come

A calendar of every session, a muscle map of what you’ve trained this month or year, and strength trends for every exercise — so every workout adds to the story.

  • Muscle map: see which muscles you’ve trained, by month or year
  • Max-weight trend, volume and history for every exercise
  • Calendar with each day’s workouts, water and steps
Hands-free

Without opening the app

Siri, Home Screen widgets, your Apple Watch and the Lock Screen — your workout is always one glance or one sentence away.

Your usual workout

It remembers your Mondays.

Train the same routine on the same day each week? Iron Karnet learns your weekly rhythm and has that workout ready again next week — on your Home Screen widget, on your Apple Watch, and when you ask Siri. No scheduling needed.

  • Learns your workout for each day of the week
  • “Hey Siri, what’s my workout today?”
  • Today’s workout on your widget and Apple Watch
Live Activity & widgets

On your Lock Screen. On your Home Screen.

Start a session and it lives on your Lock Screen and in the Dynamic Island — live heart rate, your current exercise and a rest timer counting down. Between workouts, Home Screen widgets show today’s workout and let you log water in one tap.

  • Mark a set done, skip rest or log water — without unlocking
  • Heart rate, exercise and rest timer at a glance, alongside your music
  • Home Screen widgets for today’s workout and water
And the rest of your routine

Everything else you track

The full picture of your training and health, syncing automatically with Apple Health.

Supplement Manager

Your stack, organised

Catalog supplements, scan labels with OCR, plan daily intake schedules, set reminders, and see full macro & micronutrient breakdowns.

  • OCR label scanning
  • Daily intake schedules & reminders
  • Macro & micronutrient breakdowns
Water Tracking

Stay hydrated, stay sharp

Log daily hydration, set personal goals, schedule reminder notifications, and watch your weekly and monthly trends climb.

  • Personal hydration goals
  • Smart reminder notifications
  • Weekly & monthly trend charts
Apple Health Sync

Connected to your whole health picture

Push and pull workouts, weight, water, supplements and body measurements to and from Apple Health automatically — no manual double-entry.

  • Two-way HealthKit sync
  • Workouts, weight, water & more
  • Automatic, in the background
Body Measurements

Measure the transformation

Log weight, body-fat % and per-muscle-group circumferences, with left/right symmetry analysis and one-tap HealthKit import.

  • Weight & body-fat tracking
  • Per-muscle-group circumferences
  • Left/right symmetry analysis
One app, every device

Feature by platform

iPhone is your full training hub. Apple Watch runs the workouts you've prepped. Here's what each device does today.

Feature iPhone Apple Watch
Training & workouts
Start & run a workout ✓ ✓Scheduled or favourited workouts
Live workout dashboardHeart rate, reps & sets ✓ ✓During a prepped workout
Workout categoriesStrength · HIIT · Core ✓ ✓
1,324-exercise library ✓ —
Animated exercise demosWith step-by-step instructions ✓HD with free download ✓During workouts
Build & share workoutsQR import ✓ —
HIIT circuit management ✓ ✓Run only
Scheduled workouts ✓Plan & schedule ✓Runs today's
Usual workout of the dayRemembers your weekly routine ✓Siri & widget ✓Ready on your wrist
Live ActivityLock Screen & Dynamic Island ✓ —
Home Screen widgetsToday’s workout & water ✓ —
Heart rate & Activity
Per-set heart rate ✓AirPods Pro 3 ✓Wrist sensor
Heart rate via AirPods Pro 3 ✓ —
Heart-rate insightsPer-exercise breakdown ✓ —
Health & progress
Progress & analyticsCalendar & trends ✓ —
Supplement ManagerOCR label scanning ✓ —
Water tracking ✓ ✓
Body measurements ✓ —
Apple Health sync ✓ ✓
✓ Available — Not available

Start training free for 7 days

Iron Karnet is available on the App Store for iPhone and Apple Watch. Download it, try everything free for 7 days, and start tracking every set and every beat.

Download on the App Store