The document discusses mobile-assisted language learning (MALL) and analyzes student usage of English learning apps. It finds that students preferred apps with: 1) Easy, short audio/video content for listening/reading rather than vocabulary/grammar. 2) Various topics, functions and units across news, podcasts and talks. 3) Features like customizable playback controls and note-taking. Students used apps mostly for individual input building and fluency rather than collaboration. Continued use depended on app language level matching students' abilities and providing timely, authentic content. The study implies apps should focus on "light" principles, gradual scaffolding, and individualized, field-dependent learning over form.