You don’t need to sign up on Sportlyzer. Your club has to add your email address to your kids’ account as a family contact. If that is done, then all you need to do is download Sportlyzer Parent App, open it, and authenticate yourself with your email.
Follow these steps:
Download the Sportlyzer Parent App from the buttons below or by going to Play Store / App Store.
Enter your personal email address to the app (the email you have given to your club).
Sportlyzer will send you an email.
Open this email on your phone (from your phone's email app or by logging in through the mobile browser).
Click on the link to verify your email and the Parent App will be ready to use.