Self-regulated learning (SRL) is associated with increased academic achievement and improved learning outcomes for students. Thus, it is import to find ways to improve SRL, such as through training. Face-to-face training, discipline-dependent training, and paper-and-pencil diaries are limited in the number of students they can reach. The current randomised control study implemented discipline-independent online training and novel mobile-app based diaries and tested SRL motivation and perceived strategy use in 73 University students from mixed disciplines and study mode. Results showed that participants in the combined condition (training with diaries) improved more than other conditions. Specifically, they improved on SRL knowledge, metacognitive strategies, cognitive strategies (elaboration, organisation and critical thinking), and resources management strategies (time-management and effort regulation). The present study extends previous findings, showing that positive effects can be found for SRL when a discipline-independent approach is used coupled with online training and a mobile-app based daily diary.