Design Software for Android and iPhone -- 3

Hello I am a student studying electrical engineering in my Master's degree. It is my dream to have an own product to sell. Therefor, I have many ideas in my free time and create the hardware myself. My biggest weakness is when one of my projects needs software. That's why I need the help of you. In this specific project, I want to provide the client a tool that allows the client to create customer specific rotationally symmetric chess pieces. Letting the client design in the existing Excel spreadsheet (video) is not very comfortable. That's why I need a software that runs on any smartphone (Android and iPhone), where the customer can move lines and corners with his finders. The Excel spreadsheet provides the whole calculation for all the points that need to be drawn on the screen when moving a line or an edge. Your task is to implement the mathematical model so that it can run on smartphones and tablets with a nice graphical user interface. A future addition is that the customer can order directly in this software. The software will ask the customer for personal data and for payment. Then the software uploads the geometry data to a server and sends it to the manufacturer. I look forward to hearing from you Patrick Büchele