Mobile app for iOS & Android for the event Fete du Lacs des Nations, in Sherbrooke Quebec. Integration with PayPal for ticket purchase. Based in Cordova/PhoneGap. We also developed a back-end system that managed push notification and tickets. The tickets synchronized with Paypal and send an e-mail with a unique QR code for the ticket. Later this QR code was read in the entrance of the event. All worked flawlessly!