Setting up tickets
You can do ticketing in Brick River if you click the "Ticketing" checkbox in the Properties panel.
And then you have the option to put a little message on the ticket. A short little message.
People getting their tickets
Once people register AND PAY, their tickets are available to them off of the confirmation page. There is a big button that says "View/Send Tickets". They can get to the confirmation page, right after they register or from their confirmation email.
The participant can print the tickets or email them to the registrants. The system will email each registrant a link to their ticket.
Scanning tickets at the door
You just need a smartphone to scan tickets. No special app needed.