CallApp Social Caller-ID & Dialer identifies a billion unknown callers & updates your phone-book with picture & info. TechCrunch disrupt finalist & Israel’s start-up of the year - CallApp is #84 most downloaded app in Google Play & the #1 Caller-ID & contacts App. CallApp makes any conversation more exciting & productive CallApp was founded in 2011 by a group of passionate industry experts, and launched its beta in 2012. At CallApp, they are on a mission to change the way people communicate.