Hanun Thalia, a student at Universitas Indonesia, writes about a novel technology-based approach for improving communication among family members, an approach that she argues can contribute to the achievement of the UN Sustainable Development Goals. KomU, an app, helps families learn to use the “I statement” and “sandwich feedback” methods of communication, two psychology-based approaches that foster direct but nonconfrontational communication and conflict resolution. Learning such healthy communication methods promotes mental well-being and developmental health, the essay argues.