1. @telegram is a messaging app with a focus on speed and security.
  2. @HERE Maps with Offline Navigation is just like your satnav or GPS. See your location and get accurate directions to your home.
  3. @Wunderlist helps millions of people around the world capture their ideas, things to do and places to see. Whether you're using phone, tablet, PC or Mac
  4. @Skype: Say “hello” to friends and family with an instant message, voice or video call on Skype for free.
  5. @LinkedIn: Manage your professional identity. Build and engage with your professional network and find perfect job.
  6. @Office: Explore Word, Excel... for an easier screen-reading experience, new ways to work together on documents, and tools that help you do your job.
  7. @XE: Get free live currency rates, tools, and analysis using the most accurate data with offline features. Other services include XE Trade money ...
  8. @swarmapp is an app that helps you keep up and meet up with your friends with check in feature to place that you have just visited.
  9. @KAYAK searches hundreds of travel and airline sites to help you find and book your flight for the absolute lowest fare.
  10. @TutanotaTeam: The open source app Tutanota enables you to send end-to-end encrypted emails to anybody with a tip of your finger.
  11. @duolingo: Learn languages completely free, without ads or hidden charges. It's fun, easy, and scientifically proven.
  12. @VyprVPN: encrypts your Internet connection to protect your online privacy and security, without sacrificing speed
  13. and of course @Twitter: Connect with your friends — and other fascinating people. Get in-the-moment updates on the things that interest you.

Thanks
@DejanMajkic