If you are starting fresh, the first step is to visit the Google Play or App Store on your device and download TracerPlus. Once downloaded - selected the second option - Login (Subscription Users).
The next window will ask you to login with your username and password. As a register by device user, you will click the menu (3 lines) button on the top right-hand corner.
It will lead you to an options box where you will have to swipe to the right to login with device ID, when it turns blue, press done.
It will take you back to the TracerPlus Login screen where you will type in your Account ID (the account ID is listed in the Subscription Portal and in your order confirmation email sent by our orders team), as you can see in the image below the device ID is already populated, press log in when you are ready.