Mobile-Assisted Language Learning (MALL) has been a vibrant area of second language acquisition (SLA), which provides flexible and anywhere access to language learning materials. This paper surveys work on the role of MALL technologies such as mobile apps, multimedia tools, and context-aware systems on learning achievement and learner autonomy. It addresses how mobility and access impact language acquisition, especially vocabulary mastery, listening skills, and motivation. The survey sheds light on the pedagogical and technological issues experienced by learners and teachers and offers insights into future avenues for incorporating MALL in formal and non-formal language learning contexts.