| Thunderstats Free | Thunderstats Pro | Thunderstats Commercial
|
| Graphical webcounter | x | x | x
|
| Report last 10 visitors | x | x | x
|
| Report current visitors | x | x | x
|
| Report visitor domains | x | x | x
|
| Report visitor countries | x | x | x
|
| Report search engine referrals | x | x | x
|
| Report search phrases | x | x | x
|
| Report other referrals | x | x | x
|
| Report Operating Systems | x | x | x
|
| Report user agents (browsers) | x | x | x
|
| Report screen resolutions | x | x | x
|
| Report screen colour depths | x | x | x
|
| Report installed plug-ins | x | x | x
|
| Report Java support | x | x | x
|
| Report JavaScript support | x | x | x
|
| Report visits per section | x | x | x
|
| Report clickpaths | x | x | x
|
| Report first / last / single visit pages | x | x | x
|
| Report click-out counters | x | x | x
|
| Report download counters | x | x | x
|
| Report average visit lengths | x | x | x
|
| Configureable report layout | x | x | x
|
| Download statistics as .csv file | x | x | x
|
| Auto-mail statistics as .csv file | - | x | x
|
| Whois search links | - | x | x
|
| Real-time traffic monitor | x | x | x
|
| Trend analysis | x | x | x
|
| Support for multi-homed sites | - | x | x
|
| Support for virtual subsites | - | - | x
|
| Maximum history length | 7 days | 1 year | infinite
|
| Report selected time period | - | x | x
|
| Number of reports defineable | 1 | unlimited | unlimited
|
| Maximum pages monitored | unlimited | unlimited | unlimited
|
| Maximum lookups per day | 1,000 | licence | licence
|
| Banner-free | x | x | x
|
| Cost | free | ask for prices | ask for prices
|