application rebuiled

I am looking for a skilled developer to rebuild my application with new features in mind. The current platform is not specified, but the ideal candidate should have experience with iOS, Android, and web-based applications. The main goal for rebuilding the application is to add new features and improve the user experience. The project completion deadline is moderate, with a timeframe of 3-4 weeks. If you have experience with rebuilding applications and can work within this timeframe, please apply.