★ NO NEED TO ADD BUDDIES: Your Address Book is used to automatically connect you with your contacts. With push notifications WhatsApp is ALWAYS ON and ALWAYS CONNECTED. ★ NO NEED TO LOG IN/OUT: No more confusion about getting logged off from another computer or device. ★ SAY NO TO PINS AND USERNAMES: Why even bother having to remember yet another PIN or username? WhatsApp works with your phone number, just like SMS would, and integrates flawlessly with your existing phone address book. Chat with your friends all over the world as long as they have WhatsApp Messenger installed and avoid those pesky international SMS costs. ★ NO INTERNATIONAL CHARGES: Just like there is no added cost to send an international email, there is no cost to send WhatsApp messages internationally. ★ GROUP CHAT: Enjoy group conversations with your contacts.
★ MULTIMEDIA: Send Video, Images, and Voice notes to your friends and contacts.