Please read the grand parent comment. If you collect data that can be tied to the user using your app/site (e.g. create a session and store the id as a cookie),

Please read the grand parent comment. If you collect data that can be tied to the user using your app/site (e.g. create a session and store the id as a cookie), you need to get consent for that. On top of that, the user should be able to view and remove the data you have collected for them.