The apps have become so popular that they help to constitute one of the Internet’s largest social network of fitness enthusiasts: 50 million and growing. MapMyFitness gives users access to a searchable database of more than 70 million global routes, online training tools, nutrition tracking, fitness calculators, event listings, and allows them to easily share activities with friends. Leveraging this highly engaged user base, the company who acquired the solutions now have a direct marketing line into a 50 million user buying ecosystem.