I need a mobile application developed for both Android and iOS platforms, specifically for mud engineering purposes. The app should primarily focus on: - Generating reports - Performing mathematical calculations Ideal Skills and Experience: - Proven experience in mobile app development for both Android and iOS - Strong background in creating data-driven apps, particularly in the engineering sector - Ability to generate detailed, technical reports through the app - Proficiency in implementing complex mathematical functionalities within apps Please include relevant past work in your application.