Explore WhatsApp Clock Sign, Single Tick, Double Tick

WhatsApp is an instant messaging mobile app with 800 million active users(April 2015) currently owned by Facebook from February 19,2014.We will try to explore WhatsApp's user interface a little bit deeper but before that we will go through actual working of WhatsApp which will help us understanding its service. How WhatsApp Works? WhatsApp follows a 'store [...]

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