Jen LooperJen Looper is a Boston-based web and mobile developer, specializing in cross-platform educational and fitness apps for iOS, Android, Nook, Kindle and Windows phone. View her portfolio at www.ladeezfirstmedia.com.Jen's articlesCreate a Kid-summoning IoT Device with Spark OSMobileBy Jen Looper, September 10, 2014Spark OS is a new operating system designed to make IoT development easier. We take a look at how it works and what it can do.2D Animation Tutorial Using Spine for Mobile AppsMobileBy Jen Looper, July 30, 2014Spine is a new 2d animation tool ideal for mobile apps. Jen Looper shows us how to get started.Responsive Design vs ‘m.’ SitesMobileBy Jen Looper, July 02, 2014The segregation of the mobile experience to a subdomain, the ‘m’ domain, seems a little old school. In this article, I'll discuss why it may still be valid.Managing and Maintaining Your Apps PortfolioMobileBy Jen Looper, June 03, 2014When your portfolio grows larger than ten apps, it can become hard to maintain the quality of a portfolio. Here are some ideas to help you manage yours.Navigating iTunes Connect: a Developer’s GuideMobileBy Jen Looper, May 02, 2014iTunes Connect can be a daunting place to navigate. Read our guide for developers to get you started.