Our findings directly inform this, as they highlight which sociodemographic groups may be less likely to adopt the technology and why. Tailored information campaigns may then be developed to build trust and highlight the apps’ utility for these groups, as well as explain the benefits of comprehensive sexuality education. For example, our identification of education level as significantly associated with perceived relevance to parenting should be useful to future researchers in this area. Care should be taken to engage parents with lower levels of educational attainment to emphasize the importance of parent-child sexual communication on their children’s development. It is, however, noteworthy that this reduction in perceived relevance to parenting did not affect parents’ overall intention to use the technology. [...] We identified that relevance to parenting and quality of technology were the critical determinants of parental intention to use hypothetical sexuality education apps. Our findings contribute to the theoretical advancement of the TAM in the context of parent-child sexual communication and provide actionable recommendations for app developers, researchers, and educators. Future research should involve real-world evaluations of intergenerational sexuality education apps to further refine our understanding and improve communication tools available for parents and their children. This is with the overall aim of ensuring parents can engage in high-quality, unprejudicial, and open communication with their children on sexual health topics. Authors' Contributions: TRH and JT conceived of the project concept.