I need an iOS app designed and built that will provide the best cycle route in London between two destinations. The main standout feature of this app is the ability for users to understand how much money and carbon they've saved compared to taking the tube. Key Features: - Cycle route: the app should provide the best cycle route for the user and provide time/distance/navigation - Environmental Impact: Displaying the user's savings in money and carbon compared to taking the tube would be a unique and engaging feature. - Tracker of user's money and carbon saved. Route Information: The app should provide the following information related to cycle routes: - Distance - Estimated travel time Customisation: - Users should be able to enter a specific length for their route rather than being limited to preset options. Ideal Freelancer: - Experience with iOS app development - Proficiency in map integration and route planning - Ability to create engaging and user-friendly interfaces Optional: Experience with environmental impact calculations Please provide examples of your past work in your proposal.