iOS is the most popular platform for healthcare app development, due to its user-friendly interface and high level of security. Apps on iOS can also be integrated with Apple’s HealthKit, allowing users to store medical data in a secure manner.
Android is another popular platform for healthcare app development. It is open source and has a large user base, making it easy to reach a wide audience. Android apps can be integrated with Google Fit, which allows users to track and manage their fitness data.