2025-06-04 00:00:00 With this free Oslo Pass-app you can buy the official city card of Oslo. It offers free entry to more than 30 museums and attractions, free travel on all public transport in the city, discounts on sightseeing and special offers at restaurants and leisure activities. Key features: • The Oslo Pass is available for 24, 48 or 72 hours. Reduced rated for children and seniors