Coinbase - Bitcoin, safe and easy.
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.
Binance - Cryptocurrencies exchange platform
BetterChat for WhatsApp - Gorgeous new full-featured WhatsApp client for the Mac.
Poloniex - US-based cryptocurrency exchange with maximum security
Number To Whatsapp - A utility tool which lets your start a Whatsapp conversation without saving the contact of the said person first.