When comparing NativeScript vs Tabris Framework, the Slant community recommends NativeScript for most people. In the question“What are the best frameworks for developing cross-platform mobile apps with JavaScript?” NativeScript is ranked 5th while Tabris Framework is ranked 14th. The most important reason people chose NativeScript is:
Used by Svelte framework for native development.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Svelte Native
Used by Svelte framework for native development.
Pro Leverages knowledge in Angular
Angular is a very popular framework, and teams already developing angular will feel right at home with Nativescript + Angular
Pro Works great with vue.js
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 Nativescript + Angular apps for Android tend to have long startup times.
It's very difficult to have acceptable startup times with NS+Angular in Android. It's not uncommon to see apps taking 6 sec or more to start AFTER having been optimized with Webpack (mandatory!). The same app in iOS takes only 2-3 sec. Also, this seems to happen only with the NS+Angular flavour. People using plain NS (without Angular) don't seem to have the issue.