Do you have a great idea for an app, but you don't know how to implement it? This is probably how most people feel. After all, everyone knows a problem that they would like to solve. However, there is usually a lack of technical know-how on how to develop an app for iOS, Android or Windows Phone. This overview leads you through instructions, tutorials and how-toss in app development from app development agency - from the beginning to the finished app. Have you ever tried hiring an agency to help you create an app?