In The Bryntum Complete Bundle:
If you’re building a native app, you can leverage tools like PhoneGap and Sencha Cmd to easily convert a web application into a native app, ready for the various app stores out there.
With Ext Gantt you can view and manage complex project schedules easily in your web application. The component supports lots and lots of Gantt use cases: Critical Path highlighting, inline editing, drag drop, dependencies, lead/lag and much more. The user interface is intuitive and interactive and allows the user to work with both the mouse and keyboard. As a developer, you can also leverage the Ext JS component model and extend our classes as well as create your own plugins to add your own functionality.
If you have existing MS Project schedules, you can import those and you can easily export the chart to PDF and PNG.