I need a very simple iOS app created (or my crap version fixed)

I have an idea for an app - but my brain is better than my Xcode skills. I have a working prototype but I can't make I well work I guess ;)

iOs 16 - phone only is fine - user enters a text field - that entry then becomes reflected in a Lock Screen widget. So basically to store combo numbers I need for a day then can replace - but don't want to keep having to unlock the phone.

It can look as basic as hell as I can do all the graphics and tidying up as a project on my own - but I just can't figure out the passing of variables from entry to widget (I'm old and miss assembly language)

I do have a prototype but it's a Frankenstein of cut and past so it might not help a proper coder...