Forum for users of JoomlaWatch / ExtraWatch for Joomla, Wordpress, Drupal, Magento, Prestashop
JoomlaWatch / ExtraWatch has following features: live real-time visitor statistics, location of your visitors on a map, blocking of users based on bad word list,
front-end counters, click heat map, definition of goals and rules, graphs, directory size monitoring, monitoring of increase of database data in time,
nightly email reports, interactive HTML5 chart of traffic flow within your website, SEO report with keyword statistics and keyword position trends
It's because it shows only pageloads..
Imagine, how would you count a unique visitors from this all-time data?
Also, to determine the uniqueness, you would need to store all previous IP addresses.
This is technically quite hard to implement, and would require much more resources.