Mobile app marketing has evolved significantly from 2011-2015. In the early years (2011-2012), marketing was less targeted and focused more on downloads than ROI. From 2012-2013, AppsFlyer helped advertisers gain attribution data to optimize for cost-per-install and lifetime value. They also grew their network of ad partners from 6 to over 260. By 2014, they provided platforms for agencies, reengagement campaigns, and worked with over 700 ad networks. OneLink was introduced to simplify cross-platform linking and deferred deeplinking to improve ROI.