WhatsApp Messenger

WhatsApp Messenger is a smartphone messenger available for Android and other smartphones. WhatsApp uses your 3G or WiFi (when available) to message with friends and familyhttp://www.9apps.com/android-apps/WhatsApp-Messenger/. Switch from SMS to WhatsApp to send and receive messages, pictures, audio notes, and video messages.http://www.9apps.com/android-apps/WhatsApp-Messenge
WHY USE WHATSAPP:
★ NO HIDDEN COST: Once you and your friends download the application, you can use it to chat as much as you want. Send a million messages a day to your friends for free! WhatsApp uses your Internet connection: 3G/EDGE or Wi-Fi when available.