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Three ways to count, all on-device: the iPhone camera reads your body pose with Apple's Vision framework, an Apple Watch counts from your wrist, and AirPods count from the motion sensors in your ears. Every source has its own sensitivity setting — if the count comes out low, raise it; if it counts extra, lower it. You can also enter a result by hand.

No. The iPhone camera counts your jumps with nothing on your wrist and nothing in your ears — prop the phone up 2–3 metres away, with light in front of you and your whole body in frame. AirPods count hands-free too. A Watch adds live heart rate, wrist workouts and better calorie tracking.

The workout is recorded on your device while it runs, so you can keep the clip: at the finish you can save it to your camera roll in 720p or Full HD. If you don't save it, it's deleted. Nothing is ever uploaded.

Ones with motion sensors: AirPods Pro (all generations), AirPods 3 and later, AirPods Max, Beats Fit Pro, Beats Studio Pro, Beats Solo 4 and Powerbeats Pro 2. Counting with AirPods needs Motion & Fitness permission — you can turn it on in iOS Settings → Rope Flow. Other headphones play sound fine, but can't count: use the camera or the Watch instead.

Yes. RopeFlow is offline-first: everything works without a network, and syncs when you're back online.

On your device first. Create an account and it syncs securely to the cloud; you can delete your account and data anytime from the app.