Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
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.
Zeplin - Collaboration app for UI designers & frontend developers
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
ActiveWords - Auto correct on steroids