There is no time limit on the free, branded version of ZingChart. We offer this version so developers and organizations can make sure the library adequately meets their charting needs. Note that the free branded version provides the same access to chart types and features as the paid licensed versions. The difference is that the former appears with the ZingChart watermark and context menu item on their charts.
We do expect free users to abide by our branded licensing agreement, which means that you cannot remove, hide, or reduce the visibility of the ZingChart watermark and context menu item. Also, the branded version can not be used in products that are intended for installation and/or distribution (such products require an OEM license). For questions about licensing, contact our sales team at firstname.lastname@example.org or talk to us on chat (see the bottom-right corner of the page).