We use Orbit (orbit.love) at our company (reviewpad.com). It seems to be the kind of app that you're looking for, plus is targeted at communities based on developers which seems to be your case as well. You get metrics like reach and mentions performance, as well as a kind of management system of the active community members (there's a "love (for your company)" rank, an activity (with your socials) timeline and so on. Check it out.