We will keep it quite simple:
Otherwise, we place no Cookies on your browser by default.
Only if you purchase a solution, we will place a cookie, and if you register, we will also record your e-mail address.
We store essential information in a database (such as session identifiers, your e-mail address, first name that you give to us), in order to provide you with registration functionality and be able to collect content that you pay for.
We do not store timestamps, IP addresses, browser information and similar in a central database - this information will be however stored in audit logs which are managed by our hosting provider Heroku, for the purposes of tracking any abuse and monitoring the quality of the service.