After downloading Talk, it's simple! Enter your email and password as in the following image:
After this, the adult will have an account as the Talk moderator and their children will be a part of it. Just create your profile with your photo, name and surname and then add your children as shown below!
Create your profile:
Adding your children:
On your child's device, download and access Talk with your login and password and you will see a few options to set it up as belonging to the child!