In the United States, mobile dating is all about Tinder and Match.com. But in Germany, young singles are turning to Lovoo. This week, Meet Group announced it is acquiring the app for $70 million; the deal is expected to close in October. Geoff Cook, CEO of Meet Group, says adding Lovoo to its portfolio helps increase the company's footprint in Europe. Cook says it will be the largest app in Meet Group's portfolio when the deal closes.