What is the difference between a profile and an account?
For free accounts, there is no difference.
PREMIUM accounts can create as many user profiles as desired on one account. All you need is a valid e-mail address that isn’t already registered on Calaméo.
The profile used to create the account is the "administrator" by default and can create additional user profiles. The administrator can also define privileges within the account (access to publications and to subscribers for one or several subscriptions, profile management, etc.).