This document discusses the potential for mobile health (mHealth) education to help address the shortage of trained healthcare workers in developing countries. It notes that millions more health workers are needed to achieve health-related development goals. While traditional medical professionals are important, training paraprofessionals like community health workers is also essential. The document then reviews how mHealth education applications can deliver training, testing and support to both health workers and individuals. It identifies opportunities to maximize mHealth education's impact through adopting systemic approaches, promoting collaboration, and aiming for scale.