| Product | Package | Licence | Links |
| Calc 5.3 | c9853a.exe | Free | Download from Flow Simulation
Download from CNet (download.com) |
| Calc 5.6 | Calc CD | Commercial | Buy CD |
| Calc 5.6 | Calc Bundle | Commercial | Buy Calc Bundle |
| Calc 5.6 | Calc567a.exe | Commercial | Buy Calc for Windows Mobile/Pocket PC |
'Classic' is equivalent to Pocket PC (no 'phone). Note: There are some compatibility issues with Calc Version 5.3 (the free version) on the newer Windows Mobile 5.0 devices.
See our FAQ for more details.