Open the HMD OffGrid app, or navigate to https://offgrid.hmd.com
Click the 'Sign Up' link on screen
Input the required account details shown
Once you have completed all the details, accept the terms and conditions of service and click the 'Sign up' button
Check and confirm your phone number is correct
Enter the one time passcode (OTP) sent to your mobile number
You have now created a HMD OffGrid user account, and can continue to setup a satellite connected device or use the app for two way messaging over an internet connection.