You can easily create an account in two ways:

From the Settings of StepsApp:

• Open StepsApp
• Tap on Settings
• Tap on “Create Free Account”
• Continue with Apple ID or Sign up with Email
   

From the Leaderboard Settings:

• Open StepsApp
• Tap on the ellipsis menu (three dots icon next to “Friends”)
• Tap on “Sign In” or “Create Account”
• Continue with Apple ID or Sign up with Email

Once you will be logged in you will be able to see all of your Friends and Groups, and visit your Profile to set up preferences in the Settings of the app.