Who doesn’t know what is WhatsApp? With over 1.2 billion monthly active users this popular Facebook-owned instant messaging app is now one of the most popular app all over the world, and its popularity keeps growing.
This multi-platform messaging app allows us to exchange text messages and phone calls for free, not to mention the ability to share videos and pictures. Users can install WhatsApp on almost every smartphone, since the app support Android, Windows and iOS platforms. The competition with other similar messaging app (such as Telegram) is very tough, so developers keep working very hard to further improve the performance of our beloved app.