Codename One vs Kivy
When comparing Codename One vs Kivy, the Slant community recommends Kivy for most people. In the question“What are the best free cross-platform (mobile and desktop no web) app development frameworks that can be used to create commercial apps?” Kivy is ranked 1st while Codename One is ranked 9th. The most important reason people chose Kivy is:
Kv design language is designed to work well with scalable graphical user interfaces (GUIs) as one of its primary focuses. It also segregates the logic from the design elements, making them easier to visually distinguish from each other.
Specs
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Pros
Pro High performance
Pro Open source
Pro Highly customizable
By utilizing lightweight component architecture and the built in graphical designer and theming options you are able to customize a good looking app on any platform.
Pro Java 8 support
Pro Works with all IDEs
Works with NetBeans, Eclipse, IntelliJ, etc.
Pro Multi-platform development environments (via build server)
You can even use Linux desktops to build native iOS apps, no need for a Mac.
Pro Vibrant & helpful community
Pro Attractive pricing
It is possible to build production grade apps even with the free version. Pricing is decent when compared to competitors like Xamarin.
Pro Kv design language
Kv design language is designed to work well with scalable graphical user interfaces (GUIs) as one of its primary focuses. It also segregates the logic from the design elements, making them easier to visually distinguish from each other.
Pro Multitouch gestures
Cons
Con Documentation & examples are terrible
Terrible documentation & not too many resources can be found.