When comparing Xamarin Forms vs Onsen UI, the Slant community recommends Xamarin Forms for most people. In the question“What are the best systems to deliver native Android and iOS apps from one code?” Xamarin Forms is ranked 4th while Onsen UI is ranked 6th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Many tutorials online to start learning
Pro Supports F#
Xamarin supports F#, giving developers a functional language for building native apps on iOS, Android and Windows.
Pro Free
Microsoft bought Xamarin and made it free.
Pro Cross platform
Pro Open source and free
Onsen UI is open source, and completely free to use.
Pro Can be used for web apps as well
Onsen UI is usable for classic web development as well as mobile.
Pro Large selection of components
Onsen UI provides a wide selection of components that are ready to use out of the box and are easily customizable.
Pro Easy to use
Onsen UI provides very clear, well-written and detailed documentation.
It uses popular technologies that are likely already familiar to developers (such as jQuery and Angular).
The framework is semantic and intuitive to use, making it quite fast to learn.
Pro Supports React
React is the most trending front-end UI framework, naturally supporting that is a plus.