Placie allows you to make your own app in the web service for any mobile device platforms. Placie designer provides visual programming web-tool that allows non-programmer to design apps by creating boxes and connecting them in your web-browser. When the design is completed, you can download your app to iPhone, iPad, Android, Windows Phone or BlackBerry. As a part of Placie, engineers can develop their own box that contains engineers unique logic, and distributed via Placie platform like Heroku's eco system. For service development side, this service is made by connecting existing well-known services and products, so each component is stable enough and proven in actual production. Placie's target is engineers and entrepreneurs. - Unsatisfied engineers who have to develop boring "someone had ever implemented somewhere" tasks like implementing in-app-purchase on each platform/ - Entrepreneurs who had great ideas, but cannot find suitable engineer to make it happen.