Diary study: Real user experiences in the BAUR app
September 25, 2025
Our user researchers Paula and Aileen recently conducted a diary study with 17 participants in the BAUR Shopping app - the first of its kind for some time. The aim was to gain deeper insights into app usage and understand how users find their way around it. A traditional usability test would not have been able to provide all the desired information. Communication with the participants was straightforward via WhatsApp broadcast - a communication option that was easy to implement and cost-effective to use after clarifying data protection aspects. Recruitment was carried out via push notifications in the app and a survey to ensure that the participants used WhatsApp, agreed to be contacted and basically met the criteria for participation (e.g. affinity for online shopping, frequent use of the app, etc.). The feedback on the study itself was consistently positive. For example, the participants praised the inviting recommendations on the homepage and the good handling as well as the many options of the filter function in the product list. The authenticity of the shopping situations in which the customers found themselves, which is not available in this form in other test environments, was particularly valuable. This allowed them to answer the questions when and where they wanted, for example at home on the sofa or on the move. The diary study thus provided important insights into the actual use of the BAUR app and showed how valuable this method is.