The Institute for Integrative Health Care and Health Promotion at the University of Witten/Herdecke and the German Association of Health Insurance Funds (Verband der Ersatzkassen) have investigated the effect of mindfulness-based interventions on the well-being of residents in nursing homes in the research project "Happiness and Mindfulness in Nursing Homes." The already evaluated and certified eight-week holistic health promotion program BERN (B - Behavior, E - Exercise, R - Relaxation, N - Nutrition) by Prof. Dr. Tobias Esch, chair and institute director, was adapted to senior citizens and developed into a mindfulness app for senior citizens. To enable other care facilities to benefit from the results, we offer free multiplier training to present the central results and practical recommendations for action of the designed mindfulness app for seniors.