I decided to install Jetpack from Automattic, because I’d like to have some form of feedback to see how people are interacting with my various sites.
There are various versions, from free to full-pay. I’ll start with free for now. Latest version was 7.3.0.
Main web-site is JetPack
Very easy to download plugin; click activate; select free; choose standard options.
Even though my WordPress sites are linked to my gmail.com account, I still needed to log-in to my WordPress.com account to complete the configuration for Jetpack stats.
This also works easily for my iPhone app (WordPress)