I don't imagine you'll find too much info on any prospective competitors here of all places. Though I will say that €195 is a genuinely tiny investment that you can save for when your project is production-ready 195 euro for 1 project (i have 3 games/ideas)... this means 600 euros.. that's pretty e...

As someone who made lots of UWP, WinUI3 and MAUI apps, it makes sense to try NoesisGui with Unity... but the entree fee is too much.

What are the option? Don't tell me to stick with built-in web based GUI toolkit of Unity..