WhatsApp Messenger is a FREE messaging app available for iPhone, Android, 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, documents, and Voice Messages.
Schedule your texts through iOS Messages and WhatsApp. Use the app to compose message reminders, import your contact's birthdays, schedule repeated text to send later.