Mobile health (mHealth) apps are used on smartphones and wearable devices to manage medical information and health. The mHealth app market has grown to over $400 million with over 165,000 apps available on iOS and Android. MHealth apps are used for disease management and wellness tracking. While mHealth apps provide benefits like tracking health progress and education, they also pose risks like inaccurate medical information and privacy concerns if not regulated. For new mHealth apps to succeed, developers should solve problems, follow privacy and safety guidelines, engage medical experts, make interactive apps, and use social media to generate interest.