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Sign in with the same Apple Account, open Treadwin and tap Restore Purchases on the subscription screen or in Settings. Treadwin checks your purchase with the App Store; there is no account to log in to.

Open the Health app, tap your profile picture, then Apps (under Privacy), then Treadwin, and make sure Treadwin is allowed to write workouts. Walks you log after that are saved. You can also check Settings, then Apple Health, inside Treadwin.

Steps are estimated from the distance you walked and a stride length based on your height and speed. If you would rather not send estimated steps to Apple Health, turn off Include steps in Treadwin Settings, under Apple Health.

In Treadwin Settings. New values apply to the walks you log from then on; walks you already saved keep the numbers they were saved with.

Check that notifications for Treadwin are on in your iPhone Settings, under Notifications, and that a Focus mode is not silencing them. Reminders are scheduled on your iPhone, so they work offline.

Deleting the app removes everything Treadwin stored on your iPhone. Workouts already saved to Apple Health stay there until you delete them in the Health app (Browse, then Activity, then Workouts, then Show All Data). For anything else, write to us.

Purchases are made through Apple, so refunds are handled by Apple at reportaproblem.apple.com.

No. There is no Bluetooth pairing and no treadmill account. You enter what your treadmill display shows (duration, speed and incline) and Treadwin does the rest, which takes about five seconds. That is also why it works with any walking pad or treadmill.

No. Treadwin works on iPhone on its own. Your walks are saved to Apple Health, where any other app you use can see them.

Yes. Most walking pads are flat, and Treadwin is built for them first. Trails such as the Grand Canyon Rim-to-Rim advance with distance, so every flat walk counts in full, and programs like Japanese Interval Walking and Desk Walk Zone 2 need no incline.

With the ACSM walking equation, the standard formula from the American College of Sports Medicine. It uses your speed, incline, duration and body weight. The result is an estimate, not a lab measurement, and it is not medical advice.

Apple Health counts only active calories, the extra energy you burn by moving. Treadwin shows your total burn for the walk, which also includes what your body uses at rest. Same walk, two ways to count it.

Treadwin saves each walk once, as an Indoor Walk workout, and editing a walk updates that workout instead of adding a new one. If your treadmill’s own app also writes to Apple Health, you may want to turn that off so the same walk is not recorded by two apps.

Both. Treadwin works in imperial (miles, feet, pounds, mph) or metric (kilometres, metres, kilograms, km/h). You pick one during setup and can switch in Settings at any time; your saved walks never change.

Treadwin needs a subscription. The annual plan starts with 3 days free, then costs $34.90 a year (about $0.67 a week). The weekly plan costs $7.99 a week, with no free trial. Prices are in US dollars; the App Store shows the price in your currency.

In your iPhone Settings, tap your name, then Subscriptions, then Treadwin. Cancel at least 24 hours before the trial or the current period ends and you will not be charged again. You keep access until the end of the period you paid for.

On your iPhone. There is no Treadwin account. Your Apple Health data is never used for advertising and never shared. The privacy policy explains the details.

Not for now. Treadwin is an iPhone app.