"..Pricing by app is already starting in CALA with Telefonica taking the lead. Colombia was the first market where the Spanish group launched the ”paquetes de internet”, a number of social media, mobile email and Internet packages that range in price according to the amount of services a subscriber wants access to. A speaker from Movistar Chile at the event confirmed that this is the trend – evolving from access per MB and per hour to access per application – and anticipated that the “paquetes” will be soon extended to the Andean country".
See "Price discrimination by app is a hot topic at Mobile VAS CALA"- here.
Telefonica uses Sandvine's DPI solutions (see "Sandvine Exposes Telefonica/O2 Use Cases" - here mentioning that "Telefonica recently introduced a menu of tiered pricing plans that accommodate subscribers' personalized network usage patterns and budgets ).