When comparing Proton native vs Sciter, the Slant community recommends Sciter for most people. In the question“What are the best tools for building cross-platform desktop apps with web technologies?” Sciter is ranked 4th while Proton native is ranked 7th. The most important reason people chose Sciter is:
Only a single native DLL.
Ranked in these QuestionsQuestion Ranking
Pro Open source
Pro Uses native tools
Not running a browser to manage the GUI, it uses less resources than the alternatives.
Pro No chromium
Is not based on chromium.
Con Not popular
Not being popular as electron js, its development isn't quite at the same pace.
Con No styling
Being based on libui, CSS styling isn't available.
Con Linux version is not very mature
The Linux version is missing HTML/CSS features when compared to the Windows version.
Con Not fully HTML5 compliant
Lacking HTML5 functionality and W3C standards: grabbing a library like JQuery or Bootstrap and use it in Sciter will not work.
Con Not WYSIWYG
Not WYSIWYG like WebForms or WPF.