Web: app.teambuyin.com
Go to app.teambuyin.com and enter your email. TeamBuyIn emails you a sign-in link. On a phone, you may get a one-time code instead, because mail apps open links in their own browser. You can also sign in with a password. After you sign in, you go back to the page you wanted.
Admins land on the dashboard. Technicians land on a page with their own stats and a prompt to get the mobile app. Technicians use the mobile app for everything else. Download it at teambuyin.com/download.
To log out, use the account menu in the sidebar and confirm 'Are you sure you want to log out?'
Note: Use the same email address that is on your Housecall Pro or Jobber account. If you did not get the email, check spam, then contact support from the chat in the bottom right corner of the app.