Basic
$35/Month
Charter
$50/Month
Professional
$100/Month
Price data for all major US markets since 1995 Yes Yes Yes
Point in time fundamental data since 1995 Yes Yes Yes
Equihack Editor
Create your own Stock Screeners, Formulas, and Trading Models 
Yes Yes Yes
Point in time Backtesting Yes Yes Yes
Custom Rebalancing Strategies Yes Yes Yes
Portfolio Monitor Yes Yes Yes
Portfolio Visualization Tools  Yes Yes Yes
Stock Charts Yes Yes Yes
Time Travel
View screens on the given date, including de-listed securities
Y es Yes Yes
E-mail support Yes Yes Yes
Phone support No Yes Yes
Monte Carlo (run many similar strategies at once) No No Yes