To alert your friends to an upcoming event, navigate to the event by tapping Events (at the bottom), locating the event and tapping on it, then tapping one of the share buttons at the top of the page (as shown in the red oval).
QR Code: Use the QR code digitally or add it to printed materials. If the person scanning the code already has Aftergame, the code will take them right to the event in the app.
Share Icon: This will open all your sharing options; choose an option to share the game link with one or more people or tap Copy URL to share the link however you like.
The URL will bring people to the webpage for the event (shown below) so they can see the games happening and, if they want, they can easily download the app from that page.