Signing in and installing the app
Open steadychair.com/login on your phone and sign in with your email and password.
To install it, open Your account and follow Install the app on your phone: on an iPhone, Safari then Share then Add to Home Screen; on Android, Chrome's menu then Add to Home screen or Install app.
Change your own password under your name at the top, then Your account.
Forgotten it? The Forgot password link on the sign-in page emails you a link that lasts an hour.