How can app publishers turn making money off their products easier? That’s the big question app analytics company Localytics wants to answer.

And today, the company is getting a bit of help. Localytics has raised $5.5 million in a funding round led by Polaris Venture Partners. Returning investors included New York Angels, Launchpad Venture Group, and Hub Angels.

Localytics gives app publishers an easy way to track how smartphone owners are using their apps. By engaging people in a more time-sensitive manner,  the company says that app publishers have a much better chance of engaging them and getting them to shell out cash.

The funding joins the $3.25 million Localytics previously raised, bringing the company’s total to over $8.5 million.

Alongside the funding news, Localytics also launched its marketing automation system that allows publishers to send app users in-app contextual messages that you can tweak in real-time.

With the new funds, Localytics says it plans to expand its analytics platform, which it says is used in over 10,000 apps.

The Cambridge, Mass.-based company was founded in 2009 by Henry Cipolla, Brian Suthoff, Andrew Rollins, and CEO Raj Aggarwal.