App developers want to make kick ass applications that users want to download, and — let me go out on a limb here — they also want to make money. Monetizing apps can be tough, but with a more complete picture of how their users are interacting with their app, the opportunities to bring in more revenue become clearer — as does the way to better user experiences. Back in November, we covered Appboy, a startup on a mission to enable app developers to expand, engage, and better understand their user base — and, in turn, make more money.