Also read the terms of service
This policy tells you how your data is used. I personally don't gather your information, but I use third parties. The third parties collect and analyse your data to provide and improve their services, among other things.
This service collects your email and username. Your name will be publicly shown on leaderboards. You do not have to use these features if you don't want to.
This policy may be updated at any time, with or without notice and for any reason. Re-read this when changed to stay informed about how your information is collected and used.