This article focuses on the design of programs for supporting students for the difficult transition from high school to university. Two programs are presented in the field of mathematics, which rely on digital resources. Both devices have chosen a flexible organisation, allowing students to work at their own pace. The first is based on questionnaires, which allows students to choose resources appropriate to their own difficulties. The second aims to develop a system that can identify patterns of learning and provide appropriate resources to each profile. The question of the effectiveness of these devices remains open.