DownloadX comes in two editions: Free and Professional. The Free edition can be used free of charge in your projects, but supports HTTP network protocol only and allows maximum of 10 files to be downloaded in a single session. The Professional edition supports HTTP, HTTPS, FTP and Secure FTP/FTPS (implicit and explicit) network protocols and allows unlimited number of files to be downloaded in a single session. The following feature matrix shows DownloadX features in detail:
| Feature | Free | Professional |
| Splits each file into several segments and downloads each file segment in a separate thread at the same time to get faster download speed. | Yes | Yes |
| Resumes downloads right where they left off in cases when connection is lost or download is stopped by user. With this feature you never need to worry about losing your download, whether you use wireless, dial-up or any other connection. | Yes | Yes |
| HTTP, HTTPS, FTP and Secure FTP/FTPS (implicit and explicit) network protocols support. | - | Yes |
| HTTP network protocol support only. | Yes | - |
| Unlimited number of files to be downloaded in a single session. | - | Yes |
| The maximum of 10 files to be downloaded in a single session. | Yes | - |
| Unlimited individual file size (up to 243 MB). | - | Yes |
| The maximum individual file size limit of 100 MB. | Yes | - |
| Unlimited number of files to be downloaded at the same time. | Yes | Yes |
| Separate method to get file size and last modified date from the server for the specified URL. | - | Yes |
| Proxy support for HTTP, HTTPS, FTP and Secure FTP/FTPS network protocols. 2 proxy methods for HTTP and HTTPS and 8 proxy methods for FTP and Secure FTP/FTPS. | - | Yes |
| Proxy support for HTTP network protocol only. 2 proxy methods for HTTP. | Yes | - |
| 12 customizable and sortable columns (indicators) for each file: file name, file size, downloaded size, downloaded percent, time elapsed, remaining size, remaining percent, remaining time, rate, URL path only, URL and number of file segments. | Yes | Yes |
| Adjust visual appearance: change font characteristics, set foreground and background colors and specify progress bar height, visibility and top margin. | Yes | Yes |
| Fires events for your application to handle. | Yes | Yes |
| Component file size (.cab file) | 190 KB | 280 KB |