Get motivated to run ... with money! On Cadoo you pay to join running challenges, and if you complete them, you get your money back as well as a portion of the challenge losers’ money. Get fit. Get paid. Features: Challenges: Cadoo challenges are fitness challenges which cost money to join and have a fitness goal for you to reach. Participate with others: Join challenges with other Cadoo users. Challenges typically have 50 to 100 people participating! Running: Join a variety of running challenges! Choose from minute per mile challenges, distance based challenges, and time based challenges. Walking: Join a variety of walking challenges! Choose from distance based challenges, and time based challenges. Steps: Join a variety of step based challenges! Choose from distance based challenges, and time based challenges. Connections: Verify challenges with one of our connections. Sync to Strava, Fitbit, IOS-Health, Google Fit, Garmin, and more! Experience the most intense form of motivation on the internet. Get Fit, Get Paid.