In September 2014 I started a L8 course in DBS to confront myself with a more professional development environment. One of the modules for the year is Mobile Application technologies and following is a list of the project I have added to my portfolio so far.
They are all fully working small mobile apps made using the MIT AppInventor 2.0, an open source project curated by the MIT. It is a tool widely used to show principles of programming to students across the world, and it allows to quickly build and deploy Android apps targeting (unfortunately) the Gingerbread APIs (Android 2.3).