Hasoffers.com is the Shizznitz! Fully-developed platform, Good UI/UX for Admin management and setup, Good affiliate tracking, Been around for years... Where Groupon and a bunch of other companies ran/run their affiliate programs... and your not paying the big affiliate programs a monthly nut... Only downside is that you're then stuck recruiting affiliates, tending the tribe- community managing... depends on application and people talent available...