Here is a quick list of differences between our two products.
|Crystal Gantt||Crystal Gantt Pro|
|Allows you to visualize Tasks within a single Project in the Gantt.||Allows you to visualize Tasks across multiple Projects in the Gantt, by first defining a Program. Optionally use JQL filters to select tasks that make up a Program.|
|Gantt specific data (Start/End date, Progress, Sort Order, Indent Level) gets persisted in custom fields that need to be added to your Projects.||Gantt Specific data gets persisted in a database outside JIRA, so no need for adding custom fields.|