The cost of the standard release of WinStock is just $20, which gives you access to unlimited stock quotes, portfolio management capabilities, a solid array of stock servers, and all of the features mentioned in earlier paragraphs. The downloadable release can be evaluated free of charge for 30 days before you're requested to register the product.
WinStock is also offered in a deluxe version called WinStock Pro. This $30 application includes all of the same great features found in the regular version as well as intra-day graphs, enhanced portfolio management (including multiple portfolios), automatic foreign currency conversions, enhanced alarms and indicators, e-mail and pager support, import/export of quotes (including export to popular formats like Metastock, QuoteLine, and QuoteTrack), and enhanced browsing (with built-in support for EDGAR and more data source for graphs and news).