Chapter 1. An approach for detecting social interactions on mobile devices -- Chapter 2. The urbis prototype development: a touristic guide application -- Chapter 3. Mobile apps for acting on the physical space -- Chapter 4. Development of a framework for technological embedding in private social solidarity institutions: technology for inclusion in the daily activities of third sector institutions the Portuguese case -- Chapter 5. Use of mobile devices in science education in a Brazilian public school located in a region of high social vulnerability: a case study -- Chapter 6. Mobile games for language learning -- Chapter 7. Mobile payment and its social impact -- Chapter 8. Factors for resistance to the use of mobile banking: a study on the resistance of Brazilian Internet users aged 45 years or older -- Chapter 9. Monitoring the physical activity of patients suffering from peripheral arterial disease -- Chapter 10. Continuous stress assessment: mobile app for chronic stress prevention -- Chapter 11. Mobile technologies for managing non-communicable diseases in Developing Countries -- Chapter 12. UX Design guideline for health mobile application to improve accessibility for the visually impaired: focusing on disease Retinitis Pigmentosa.