From the supplied ORB Sport guide
Step-by-step instructions
Step 1
On the Launch Screen, tap the ‘Sign In’ option.
Steps 2 & 3
Enter your registered email address and password into the appropriate fields. Next, tap the ‘Sign In’ button located at the bottom of the screen.
Step 4
You're in! You've successfully Signed In to your account. You will see either the Home Screen, or the Welcome Screen if you’ve not fully completed the app setup.