Due to the steady advance of digitalisation, it can be commonly observed that all products are increasingly developing into services in runtime contracts (subscriptions). In this context, the term "Everything-as-a-Service" (XaaS) is usually used. As a result, consumers are entering into more and more (term) contracts over which they need to keep an overview (e.g. compare, monitor terms, etc.) and interact with providers (e.g. cancel). To support this, there are already many apps, service providers and emerging start-ups. PhD student Erik Dethier is looking at how information technology can help consumers manage their contracts, finances and thus their providers. Together with his colleagues from the research group Consumer Informatics, he is conducting research on consumers and their acceptance and integration of such IT into their everyday practices, as well as on developers of such IT/apps.