Petal - A simple, no-fee credit card
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Klutch Card - Klutch Card is the first credit card with automation
BetterChat for WhatsApp - Gorgeous new full-featured WhatsApp client for the Mac.
Mercury - Mercury is banking* for startups
Number To Whatsapp - A utility tool which lets your start a Whatsapp conversation without saving the contact of the said person first.