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I need computer coding written, to act as a platform for a dichotomous key style iPhone/iPad app. I need the app to be able to ask a series of questions, and depending on the consecutive answers narrow down the pool of potential answers until only 1 remains. The questions are scientific plant/botanical based questions, and I have the question series and answers written, but I need them to be converted into app form. I also need to be able to update the information, and the app must pass Apple testing for bugs and crashes, so that it can be sold in the App Store.