When comparing Ionic 2 vs Tabris Framework, the Slant community recommends Ionic 2 for most people. In the question“What are the best frameworks for developing cross-platform mobile apps with JavaScript?” Ionic 2 is ranked 8th while Tabris Framework is ranked 14th.
Specs
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Pros
Pro Android, iOS and Windows Phone compatible
Pro Deploy as PWA
Pro Native functionality via Cordova plugins
Pro Built on Angular 2
Pro Real device deployment
Connect your PC and mobile device through Wi-Fi using Tabris CLI - and just hit the Refresh button in your application to see the latest code version in action. No emulators or attempts to run a mobile application in the browser.
Pro Cordova plugins support
Most Cordova plugins work with Tabris as plug-n-play modules, without any special tuning.
Pro Beginner-friendly
Tabris is very easy to use. You can just download Tabris Dev App from Play Store/AppStore and run any example from GitHub or code snippet from documentation right away using Playground. Documentation is easy-to-follow, and to start developing in your local environment you should only download lightweight CLI tool that will pull application code from your PC to mobile device using Wi-Fi.
Pro Native widgets instead of web views
Tabris using native widgets - it makes your app run faster and look...native - regardless of platform. Stop trying to make your buttons look "like real iOS buttons" when you can just use the native ones.
Pro Completely free
Framework and all required tools are free. Playground and Dev App - free. Online build services -for free. For some time local build service was under a paywall, but now that feature is also free for everyone.
Cons
Con Old version
No point keeping this here, is the old version of ionic.