Review of IpStat  -  http://www.ipstat.com/

Statistics are real-time.

You need different code for each page you want tracked.

Statistics are public, and are viewed by clicking on the tracker button.  If you want password-protected statistics, the cost is $100/year.

Your site must not get over 5000 hits per day

Scripting:  CGI

General statistics:
Total unique page views & reloads
Unique page views & reloads for current day.
Maximum unique page views & reloads

Graphs:
Last 21 days (unique page views, reloads, total views)
Overall history (unique page views, reloads, total views)
Hits per hour
Hits per weekday
Hits per browser

Tables:
Last 10 hits (host, country, date, time, browser version, platform)
Hits per country
Hits per browser
Hits per platform
Hits per continent