<p>"The analytics has always been the foundation for us," said Raj Aggarwal, Localytics founder and chief executive. "But over time, we realized that retention of users was a big problem in the app space."</p><p>To solve this problem, the company has now publicly launched an app marketing platform which some of its existing customers have been testing for the past few months.</p><p>The platform can be used to help time coupons, discounts, and other offers in an application.</p><p>The early reviews were apparently positive enough to impress Series B investors to the tune of $5.5 million. Polaris Venture Partners led the round.</p><p><a href="http://www.boston.com/business/innovation/2012/09/12/with-new-funding-localytics-expands-from-app-analytics-messaging/sXuUhubq5V4ga0FhZztb1N/story.html">Keep reading...</a></p>