Spelling App

Hi, I am looking to have an app built that will help people that now speak low German, that's a dialect of High German which is the language of Germany, no worries you only need to speak good English, I will personally be the voice and I am fluent in both Low German and English.
I will upload an excel spread sheet with a mock up of part of the app and in the excel spread sheet are more details of what i want it to look like when done. thanks for your bid.