My events is a free online event management application with QR code (Checkin/Checkout) and Paypal payment support
http://myevents.apphb.com/
Vinod Sebastian
https://ticketing.events/
https://ticketing.events/
https://eventjoy.com
https://devpowertools.pro/
Thiago Rezende Mendes Costa
Michael Totschnig
Unknown
