Zeal - Zeal is an API Documentation Browser.
Zeplin - Collaboration app for UI designers & frontend developers
DevDocs - Open source API documentation browser with instant fuzzy search, offline mode, keyboard shortcuts, and more
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
Snippely - Snippely is a basic text and code organizational tool.
Abstract - A secure, version-controlled hub for your design files