TUNE, an ad attribution and analytics company, has acquired MobileDevHQ, a provider of tools for mobile marketers. A TechStars graduate, MobileDevHQ had raised $750,000 in VC from Founder's Co-Op (which also is an investor in TUNE) and Social Leverage. The Seattle-based companies offered similar products and had some user base overlap. The acquisition will enhance TUNE"s unpaid user acquisition ability as many of MobileDevHQ's users are on a free tier. Formerly HasOffers, TUNE raised a $9.4 million Series A financing round in May at a valuation of almost $56 million.