on iPhone (Safari)

1. open heartability.com/dashboard in Safari and log in.
2. tap the share button (the square with an arrow). if you don't see it, tap the ••• button first.
3. scroll down and tap "add to home screen."
4. tap "add." the heartability icon is now on your home screen.
5. open it from the icon and log in once more. the app keeps its own login, separate from Safari.

on Android (Chrome)

1. open heartability.com/dashboard in Chrome and log in.
2. tap the ⋮ menu in the top right.
3. tap "add to home screen" or "install app."
4. tap "install." the icon shows up with your other apps.