Wondershare PDFelement - All-in-one PDF editor
Zeplin - Collaboration app for UI designers & frontend developers
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
Abstract - A secure, version-controlled hub for your design files
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #