1. Could I have “code” in subsequent sheets to manipulate data coming in through the form and output results.
2. Could you embed questions in an android app? If you could I would immediately have a lot of use for this.
Thanks and well done!
1. I'm not sure I 100% understand what you're asking here but it seems that what you're looking for is very possible by triggering workflows off of sheets. https://solutions.appsheet.com/workspace or https://zapier.com are a couple of great ways to do this.
2. If you can embed HTML in an Android then you should be able to embed one of the forms. I haven't done it before. Let me know if you try it and how it goes.