This study explores the critical success factors and barriers to mHealth implementation in South Africa and Tanzania. Through an unstructured literature review and semi-structured interviews with eight mHealth experts, the study uncovers common challenges, including lack of alignment with user needs, inadequate government support, and sustainability issues. Critical success factors identified include user-friendly design and adaptable tools offered at low or no cost. The findings offer insights for organizations and startups in the mHealth sector, highlighting essential considerations for success and barriers alongside strategies for overcoming obstacles and fostering an environment conducive to mHealth integration.