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. FREE CALLS: Call your friends and family for free with WhatsApp Calling, even if they are in another country. * WhatsApp calls use the Internet connection of your phone instead of the voice minutes of your cellular plan. (Note: data charges may apply. Contact your provider for more information. Also, you cannot access 911 or other emergency service numbers through WhatsApp).
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]