Bil i Oslo is the official application for car-related services in Oslo, designed to simplify parking and payment processes for users. It allows users to pay for parking at public locations without incurring additional fees, enabling them to terminate or extend parking sessions as needed. The app features automatic recommendations for parking zones based on the user's GPS location, along with a map function for easy navigation and selection of parking areas.

In addition to parking services, Bil i Oslo facilitates the payment of studded tire fees, offering options for daily, monthly, and seasonal payments. Users can manage their profiles by storing payment cards and vehicle registration numbers, and can even switch between multiple cards and vehicles seamlessly. The app is available in both Norwegian and English, and provides real-time information about handicapped parking spaces, further enhancing the user experience for motorists in the city.