The Universum Mobile Campus app uses the micro-training method for digital knowledge transfer. The essence of a wide variety of knowledge is prepared in compact form and deepened through short and active learning steps. An algorithm is used for this in classic learning. The questions are to be answered in random order. If a question is answered incorrectly, it will come back later - until it is answered correctly three times in a row in the learning unit. In addition to classic learning, level learning is also offered. In level learning, the system divides the questions into three levels and asked them at random. There is a break between the individual levels in order to save the content in the best possible way. This is necessary in order to achieve a brain-friendly and sustainable acquisition of knowledge. A final test makes the learning progress visible and shows where possible deficits lie and, if necessary, a repetition is useful. With the Universum Mobile Campus app, professional training should be combined with joy. The playful approach to learning is implemented through the possibility of quiz duels. Employees can be challenged to a duel. This makes learning even more entertaining. The following game mode is possible: In three rounds of 3 questions each is determined who is the king of knowledge. The chat function within the Universum Mobile Campus app enables employees to exchange and promote one another. Topics that are available via the Universum Mobile Campus app are, for example, screen work, first aid, hygiene in the company, fire protection, healthy back, the General Data Protection Regulation and many more.