I created Pushpin because it addressed a problem that I had myself at a previous employer. Namely that I needed to build a realtime API and there were essential

I created Pushpin because it addressed a problem that I had myself at a previous employer. Namely that I needed to build a realtime API and there were essentially no dev tools available to help with that. We (Fanout) have a paid service too: https://fanout.io/cloud/ https://fanout.io/cloud/ At this time, users are mostly other startups, for example LaunchDarkly (controlled feature rollouts) and Appbase (ElasticSearch-compatible BaaS). We have some promising discussions going on with larger companies as well.