When comparing Google Charts API vs ZoomCharts, the Slant community recommends ZoomCharts for most people. In the question“What are the best JavaScript libraries for creating visualisations of data as charts/graphs?” ZoomCharts is ranked 12th while Google Charts API is ranked 19th. The most important reason people chose ZoomCharts is:
ZoomCharts patented technology called Charts-on-Charts, which allows to dynamically build multiple interactive charts inside one canvas object.
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Pros
Pro FREE!
Pro Easy to use
Google Charts has a large selection of chart types to get started with and have up in running in very little time. It uses sensible defaults, but has flexible options to allow for customization when needed. Better than most other free to use Chart APIs and has great documentation provided by Google.
Pro Charts-on-Charts
ZoomCharts patented technology called Charts-on-Charts, which allows to dynamically build multiple interactive charts inside one canvas object.
Pro Multi-touch
ZoomCharts is built for mobile devices. All native multi-touch gestures are built in. Data navigation and exploration is as native as it could ever be.
Pro Interactivity
All ZoomCharts products have high level of interactivity available.
Pro Speed & Performance
ZoomCharts are canvas based, as tested with default settings, more than 20 times faster as svg based competitor with same data and default settings. Video available on ZoomCharts youtube channel.
Pro Extensive documentation
Most of ZoomCharts customers do comment that ZoomCharts Documentation is one of the best that they have seen
Pro Fantastic Support
They responded to my issue/question really amazingly fast and that means I didn't have to halt my project development. Also the attitude was great.
Cons
Con Proprietary
Con Cannot self-host
Google does not allow you to save or host the code yourself.