WhatsApp Messenger v2.16.188
Requirements: 2.1+
Overview: WhatsApp Messenger is a messaging app available for Android and other smartphones. WhatsApp uses your phone's Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to message and call friends and family. 

Switch from SMS ... http://www.apkformod.com/whatsapp-messenger-v2-16-188/