SwingCoach: Kettlebell Workout

Train at home with automatic rep counting and spoken form cues.

SwingCoach helps you train the Russian kettlebell swing at home. Your iPhone camera counts your reps and checks your form.

Set your iPhone down, step back, and swing.

LIVE REP COUNT Set your iPhone at hip height, 3–4 m (10–13 ft) away, and stand sideways to the camera. The countdown waits until the camera sees you. The camera finds your hips, knees, and arms and counts each Russian swing as you train. The screen stays awake, and the count is big enough to read from across the room. If the count looks wrong, fix it after the set.

FORM CUES YOU CAN HEAR SwingCoach speaks one short cue when a fault repeats:

• "Hips back": hinge more, bend your knees less
• "Arms long": keep your arms long
• "Stand tall": finish tall at the top It also counts down your rest out loud. Set the coach voice to On, Timing only, or Off.

START WITH A FIVE-SWING CHECK Do five comfortable swings. SwingCoach gives you one clear place to focus, then a three-session starter plan for your level. The last session repeats the check, so you can compare with your baseline. Plan your sessions and turn on optional reminders.

TRAIN YOUR WAY

• Open training: swing at your own pace and finish when you are ready.
• Rep goal: pick 10, 20, 30, or 50 swings, or set your own count. The workout ends when you reach it.
• Pause, resume, or end at any time.

REVIEW YOUR REPS After the set, see the reps to work on first, each with one plain sentence. Each rep shows the deepest hinge and the final lockout, with a gauge for the hip, knee, and arm angles. Rate how the session felt, then see your week and your swings for each week in History.

APPLE WATCH (OPTIONAL) See your heart rate and active calories on your wrist. Start, pause, and end from your wrist while SwingCoach runs on your iPhone. Save the workout to Apple Health. The iPhone camera does the counting, so the Watch is never required.

YOUR CAMERA STAYS PRIVATE

• No account and no sign-up.
• Pose analysis runs on your iPhone with Apple's Vision framework.
• No video is recorded or uploaded.
• Your rep counts, form measurements, and rep snapshots stay on your devices.
• The iPhone app sends crash reports and usage analytics to Google Firebase. They contain no camera images, rep counts, or Health data. You can turn off usage analytics in Settings.

SwingCoach gives movement estimates from a 2D side view. It is not a medical or injury assessment and does not replace a qualified coach. Train within your ability and clear the space around you before you swing.

Requires iOS 17 or later. Apple Watch features require watchOS 10 or later.