Abstract Multidisciplinary One Health (OH) collaboration coupled with information communication and technology provides an avenue for combating and avoiding emerging and reemerging diseases. In 2020, AFROHUN-Kenya organized a OH App development hackathon to build an application for frontline community health workers to respond to OH challenges. This article describes the purpose, process, benefits and challenges of this hackathon. Forty-nine participants, divided into eight groups took part in the hackathon. The teams ranged from four to eight members, with 55% female. A total of eight applications were developed during the hackathon all of which are in the process of patenting, before deployment as open-source applications. In the post-hackathon survey, 95% of participants indicated that they had a better grasp of the topic because of the team members’ diverse perspectives and that working in multidisciplinary teams had resulted in new friendships and partnerships. In total, 72% of respondents indicated they would be interested in participating in another hackathon. However, 65% of the respondents suggested that the training time be lengthened. This study demonstrates that multidisciplinary hackathons effectively enhance learning, significantly impact communities and improve students’ soft skills, including project and time management, interpersonal communication, motivational strategies and problem-solving.