In-app reflection guidance for workplace learning means motivating and guiding users to reflect on their working and learning, based on users’ activities captured by the app. In this paper, we present a generic concept for such in-app reflection guidance for workplace learning, its implementation in three different applications, and its evaluation in three different settings (one setting per app). From this experience, we draw the following lessons learned: First, the implemented in-app reflection guidance components are perceived as useful tools for reflective learning and their usefulness increases with higher usage rates.
Second, smart technological support is sufficient to trigger reflection, however with different implemented components also reflective learning takes place on different stages. A sophisticated, unobtrusive integration in the working environment is not trivial at all. Automatically created prompts need a sensible timing in order to be perceived as useful and must not disrupt the current working processes.