About the Authors

In 2010, Shawn Grimes taught himself Objective-C and iOS development and wrote his first iOS app for the iPad. From Baltimore, Maryland, Shawn attended Capitol College in Laurel, Maryland and graduated in 2003 with a bachelor's degree in software and Internet applications. He founded Shawn's Bits, LLC to create additional apps and present workshops for other aspiring iOSdevelopers. To help local developers, he co-runs the Baltimore Mobile Developers group with Chris Stone. Shawn and his wife, Stephanie, run Campfire Apps, LLC, a mobile app development company focused on children's apps.

Colin Francis is an iOS developer from Gaithersburg, Maryland. After extensively studying computer science, he trained himself in iOS development and worked with Shawn Grimes in Baltimore. Now he lives in Miami, developing iOS apps independently with a focus on utilities and audio-focused software applications.