When comparing Fyne vs Tk, the Slant community recommends Tk for most people. In the question“What are the best cross-platform GUI toolkits?” Tk is ranked 9th while Fyne is ranked 24th. The most important reason people chose Tk is:
Once you understand how to style, the styling can look great.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Mobile support
Android and iOS are supported.
Pro Easy to learn
Simple and consistent API.
Pro Permissively licensed
Fyne is licensed under the 3-clause BSD license, which has fairly lax restrictions on usage.
Pro Easy styling
Once you understand how to style, the styling can look great.
Pro Great for beginners
Easy to pick up and run with it.
Pro Easy and good looking in Mac, Linux and Windows
Pro Bindings for several languages
Bindings for Python, C, C++, Ruby, Perl, Go, Java, Haskell and more, see Languages with a Tk binding.
Cons
Con Go specific
Fyne is only usable in Go applications.
Con Base looks are garbage without a good amount of styling
Going with the base look for your app is a bad idea because it looks like garbage with the defaults.
Con C# support lacking
Although the Eagle Project exists, which offers Mono and .NET Core support, C# support is not standard.
