I try to collect the minimal amount of information possible about users and don't sell it to third-parties. Your login email will be stored and associated with whatever lessons you create on app.teacherjake.com or read.teacherjake.com so that you can edit or delete them. In the future, I may add statistics like number of games won and lessons studied. If so, they will be made available in your profile tab so that you can view them.
If you would like your profile information and all of your lessons deleted, I plan to add this feature in the future. In the meantime, you can email me at admin@teacherjake.com and I will delete it manually.
My site serves Ads by Google so they will also have access to your email address if you login with Google. Google will collect whatever you have consented to in the pop-up.