The story began with a simple but powerful idea: . Group buying software was designed to unlock deep discounts—often 50% to 90% off—but only if a minimum number of people signed up. This created a "tipping point" that incentivized users to share deals with friends, effectively turning every customer into a marketer . The Software "Toolkit"

Tools to set the "tipping point" (minimum buyers) and expiration times.

The story took a turn when the market became heavily saturated . Merchants grew tired of the thin margins, and customers were overwhelmed by repetitive emails. The software eventually evolved from simple "clone" sites into more sophisticated .

Apps like Baidu Nuomi in China allowed users to buy and redeem coupons directly at restaurants and cinemas.