Digital and printable voucher giant Coupons.com, has acquired US startup Yub – in a deal thought to be worth about $30 million.

The 1998-founded company, which has nearly 500 employees across its offices in California and London, today announced the new purchase, but terms of the deal were not disclosed.

Coupons.com specialises digital printable coupons, digital paperless coupons and mobile promotions.

Yub hit PI headlines in November last year after securing millions of dollars of investment. The company unveiled what it calls, ‘the world’s first offline affiliate network’, allowing merchants, retailers and restaurants to harness the power of the online affiliate model to drive in-store purchases.

Yub’s CEO and founder Alex Rampell, said Yub is the first company to ‘effortlessly track consumers from online clicks through to offline purchases’, directly linking digital marketing spend to offline revenue.

“Coupons.com plans to bring its scale, affiliate network reach and merchant base to the Yub platform to increase consumer adoption,” a Coupons.com spokesman said.

Yub, which is a spin-off from leading alternative online payment platform, TrialPay, secured $12 million in funding from investors last year and teamed up with the likes of Burger King, The Body Shop and Gap to offer users discounts.