JackThreads, the members-only shopping site for dudes which was acquired by Thrillist back in 2010, has just passed 3 million members. The site grew by a million members over the past eight months, having hit the 2 million mark back in May 2012.

So far, JackThreads’ acquisition has proved to be an excellent move on Thrillist’s part; the company touts that its shopping service is breaking subscription records daily — this past Friday it saw over 12,000 sign-ups.

According to JackThreads founder Jason Ross, mobile is playing an increasingly important role in the company’s success. Ross revealed that since JackThreads first launched its apps and mobile site last year, sales on smartphones have risen rapidly. As of today, mobile devices are responsible for bringing in more than 30 percent of the JackThreads’ daily revenue.

Last we’ve heard, Thrillist is experiencing rapid growth rates, too: its revenues were on track to hitting $60 million last year. The company has more than 215 employees, has been profitable since 2007, and reached ~5 million total subscribers across its properties in August 2012.

After going strong for 7 years with just $2 million in funding, Thrillist announced a new $13.1M fund from Oak Investment Partners six months ago.