Fyber, formerly SponsorPay, is an advertising technology company that empowers app developers to execute smart ad monetization strategies across all connected devices through a unified mobile supply-side platform. Serving approximately 150 million unique users per month, Fyber works with thousands of the world's leading developers, publishers, and advertisers.On March 22nd, 2021, Fyber was acquired by Digital Turbine at a valuation of $600M.