How native is Nativescript?
Community and plugins
Nativescript community is growing day by day. A Slack channel is available and they are also putting some effort in the project internationalization.
There are also utilities that make using Nativescript less painful for those who are not used to the terminal. Telerik is developing a Visual Studio Code extension that can be installed from the following link. With this extension, you can launch your application from the IDE without having to execute manually the Nativescript commands.
Is it a mature technology?
Nativescript is a new technology and there are still some points where it can be improved. After having tested the tool, its development workflow could be difficult to the beginner, and there are some execution options, like livesync, where finding that you have some error in the XML markup might get unnoticed. I guess some of these things will get improved in future releases.
Native against standard.
Ionic is in a tough situation. Ionic’s team is working on Ionic 2 which will give support to Angular.js 2. This new framework is a revolution in Frontend development, and it was a must to have it in its version 2, but that has made them lose steam against technologies like Facebook’s React Native or Nativescript in things like performance. Nativescript 2.0 also supports Angular.js 2, what could be summed up as that Ionic might be less competitive than Nativescript for those developers who start an app from scratch.
All in all, hybrid apps framework market is in a revolution (again). There are good prospects for solutions that are closer to native, while Ionic should consider including some of them in their framework unless these native-UI solutions are not so valued by developers as they should be. We’ll see in the near future if Nativescript becomes the reference in hybrid app development, or Ionic Framework stands still in its current top position.