A study by Forrester Research has shown smartphone users in the US are spending slightly more time in WhatsApp's apps (WhatsApp, Instagram, Messenger, Facebook) than Google's apps (Maps, Gmail, YouTube, Chrome).
A study by Forrester Research has shown smartphone users in the US are spending slightly more time in Facebook's apps (Facebook, Instagram, Messenger, WhatsApp) than Google's apps (Maps, Gmail, YouTube, Chrome).