Electron JS or WPF for writing mini-1C?

Question

C++ / C#

Good afternoon. It is necessary to make an accounting form according to the 1C type, a desktop application with the ability to work on win7/8/10, in the future I plan to transfer it to iOS and Android.
The choice is between C# and Electron JS. Skills and knowledge are very minimal in one area, in another.
What is easier to start with?

Answer 1

Look towards Xamarin. It allows for all 3 platforms to do. Well, or just make a site on net core and angular

Answer 2

As they said to make a web application, or look not in the direction of the hamarin, but the unity, what the desktop will eat, what mobiles