WhatsApp Messenger is a FREE messaging application available for Android and other smartphones. WhatsApp uses your phone's Internet connection (4G / 3G / 2G / EDGE or Wi-Fi, as available) to allow you to send messages and call friends and family. Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, documents and voice messages.
(4.1 and up)
Ice Cream Sandwich (4.0 - 4.0.4),Jelly Bean (4.1 - 4.3.1),KitKat (4.4 - 4.4.4),Lollipop (5.0 - 5.1.1),Marshmallow (6.0 - 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)