Conner Tolley

A simple plugin that will send a email stating the number of unique visitors the site has had in a certain time period.

Visitor Mailer

Receive email of visitors on a daily or weekly basis, NO additional plugins or add-ons are required.

hitmeter

This plugin inserts to site pages counter code of HitMeter – the free web sites statistic system. 
It just insert the counter code, not calculate any statistics.
You can place counter to the bottom of the page or you can choose the plase by using widget.

HitMeter Counter

Inserts to site pages counter code of HitMeter - the free web sites statistic system

Visitor Mailer vs HitMeter Counter