This document discusses the "Greek-on-the-Go" mobile learning app. It describes how the app supports new dimensions of the educational process by focusing on factors like the urgency of learning needs, mobility of learning settings, and interactivity of the learning process. The app provides Greek language learning through 16 thematic units containing 64 communicative contexts and over 50 videos. It has been downloaded over 1,500 times in 47 countries. The concept of the app emphasizes communication through carefully selected topics, authentic dialogues, and a variety of interactive listening, reading, writing and speaking activities.