Before the official launch, consider conducting beta testing with a selected group of users. This helps identify and fix bugs, gather user feedback, and create positive word-of-mouth before the public release. Develop a strong social media strategy to create excitement and anticipation. Engage with your audience through platforms like Instagram, Twitter and Facebook. Utilize relevant hashtags and encourage user-generated content.

The launch is just the beginning. Implement strategies for ongoing user engagement, such as regular updates, new features and responding promptly to user feedback. Given the increasing concern about data privacy, ensure that your app complies with relevant regulations. Clearly communicate your app's privacy policy to users.