Kendo UI is separated into a commercial and open source frameworks. The core of Kendo UI is in the open source frameworks, but some usability and benefits of Kendo UI are lost without the commercial version.
Ranked in these QuestionsQuestion Ranking
Pro Free Core tools
Pro Platform-based UI
Kendo knows what device it is being viewed on so it can adjust the UI accordingly. If a user is on a PC the user will see things differently than on a mobile device. Between iOS and Android the user will also notice a different as it pulls from the core UI of those core systems.
Pro Theme Builder
An interactive tool that has been created to customize an apps theme. Users are able to select from many pre-defined themes, edit them, and download the theme to bring into a project.
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.
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.
Con Expensive commercial tools [$699, $1,499]
The other core tools developed with Kendo are the commercial tools. There is the Professional version for $699 that will result in more jQuery UI widgets and client support. The $1499 "DevCraft" Complete edition gets developers the DevCraft .NET toolbox, testing and debugging frameworks and applications, as well as priority support.