1 A mobile app is a software program created to run on mobile devices, taking advantage of their unique features (e.g., GPS, camera) for a specific interaction. Increasingly personalized user experiences thanks to data analysis.
2 You improved your English by completing a WebQuest because you used the language to research, analyse, select and re-elaborate information in an active and guided way,
3 I keep a notebook or list in my notes app to jot down definitions of new words so I can refer back to it