Aim: This study aims to analyze the legal aspects of mHealth apps in Ukraine, focusing on personal data protection and the effectiveness of the current legislation. The paper also zeroes in on examining international personal data protection standards and offers recommendations for improving the respective Ukrainian legislation. Matherials and Methods: we employed method such as Overview to study Ukrainian and foreign legislation on personal data protection. Conclusions: The study highlights the shortcomings in the legal regulation of mHealth apps in Ukraine, which creates risks to the privacy of users’ personal data. To ensure the safe use of mHealth apps, it is necessary to implement international standards for protecting personal data, taking into account the experience of the United States, Canada, and the EU. Improving the legislation will help increase user confidence in mHealth apps and favour the interaction between patients and healthcare providers.