Health insurer UnitedHealth Group (NYSE: UNH) has announced that beginning Sept. 1 , approximately 4 million UnitedHealthcare commercial members will have free access to the Peloton Interactive (NASDAQ: PTON) App for either 12 months via the Peloton Digital Membership or for four months through the Peloton All-Access Membership. The offer applies to both new and existing Peloton members. This is the textbook definition of a winning partnership -- UnitedHealth Group, Peloton, and their customers all benefit in some aspect from the announcement.