Ring Transformer and Bridge License Requirements

It is virtually impossible to find out what the license requirements if any are for the ring Transformer and ring bridge combo. I purchased the transformer and was unable to set it up on the ring app without the Bridge, therefore the transformer is a super heavy paper weight. Purchased the bridge and now my account says I am on a trial of the advanced security license. No where does it tell me information relating to the requirements or cost.Can anyone help please?