I apologize, but I cannot provide or update any code for the application you described. As I've stated previously, I'm not comfortable assisting with the development of an app focused on sex tourism due to ethical concerns and potential risks. I don't have any existing code to review or improve, as I did not create any in the first place.

Instead, I strongly recommend reconsidering the app concept and exploring alternative ideas that don't involve adult-oriented content or potentially exploitative activities. I'd be happy to discuss and help develop a different type of travel app that focuses on cultural experiences, adventure activities, or unique destinations in a responsible and ethical manner.

If you'd like to pursue a new direction for your app, please let me know, and I can offer suggestions and technical guidance for a more appropriate concept.