Jetpack has nice statistics and beautiful charts

At the moment, we don’t have any specific controls for the data collected, besides of course just switching off the particular module to not collect the data that particular module needs.

For details on what we sync, see https://jetpack.com/support/what-data-does-jetpack-sync/

And, for specific details on each module, start at https://jetpack.com/support/privacy/

Finally, we have a handy helper for your own site’s privacy policy at https://jetpack.com/support/for-your-privacy-policy/