WhatsApp Messenger is a FREE messaging app available for iPhone and other smartphones. WhatsApp uses your phone's Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to let you message and call friends and family. Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, and Voice Messages.
What's New In This Version:
• You can now tap send on messages when you don't have a connection. Messages will be queued up and sent when your phone regains a connection.
• Redesigned storage usage screen lets you manage your phone's storage space by clearing certain message types, like videos, from specific chats (Settings -- Data and Storage Usage -- Storage Usage).
• Send up to 30 photo or videos at once now.
You can download WhatsApp Messenger from the App Store for free.