I need a mobile app that utilizes Excel for basic arithmetic calculations on number inputs. The app should be user-friendly and efficient. Key Requirements: - Perform basic arithmetic operations (add, subtract, multiply, divide) - Input data primarily as numbers - Mobile compatibility is essential Ideal Skills and Experience: - Proficiency in Excel and mobile app development - Experience in creating calculation tools on mobile platforms - Strong UI/UX design skills for mobile applications Looking for a freelancer who can deliver a simple, effective solution within budget.