The Heart Foundation Walking app uses Apple Health on your phone removing the need to have any additional devices. For walkers with a Fitbit there is also a direct connection if you want to keep using your Fitbit. Other devices are presently not supported but may be included in further updates to the app.
The Heart Foundation Walking app integrates with Apple Health and uses your step data on our in-app leaderboards.
Please note in order for your step data to show in the app you must have an iPhone 5s or above.