Syntonic CEO presented "Don't Be Left Behind in the App Economy" at this year's #TelaVivaMovel event in Säo Paulo, Brazil. #movel#mobile#MobileApps#mobilepayments#4G#5G(link: https://syntonic.com/2019/05/dont-be-left-behind-in-the-app-economy-tela-viva-movel-event-in-brazil/) syntonic.com/2019/05/dont-b…