sPortable - instant messaging, video chat and phone calls

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.

Team App - Team App is a platform that allows teams and groups to improve communication by creating their very own smartphone app.

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.

Sporty - Beautiful app for creating/joining sports activities nearby

Wondershare PDFelement - All-in-one PDF editor