ScopeFIR™ operates in two modes, Trial Edition and Professional Edition. You may use its Trial Edition free for 60 days, but you must Register the Professional Edition with Iowegian International Corporation if you use it beyond the Trial period. The differences between the Trial and Professional Editions are summarized in the table below:
| Trial Edition | Professional Edition | |
| Cost | Free | See our web site |
| License Period | 30 Days | Unlimited |
| Maximum Number of Filter Taps to Write | 32 | 10000 |
| Maximum Zoom Levels | 2 | 35 |
| Printing/Print Preview | No | Yes |
| Coefficient Editor | No | Yes |
Both versions run using the same executable (this one). Upon receipt of your Professional Registration fee, we will provide you with a Registration Key which activates the features of the Professional Edition. (The full licensing terms for each program, plus additional information about Registration are found in the file "LICENSE.TXT", included in the distribution file.)
We offer registration through both Iowegian and third-party payment processing services. For current pricing and additional details about registrations, select ScopeFIR's Registration/Purchase Registration Now (On-Line) menu, or Iowegian's Registration web page.
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"ScopeDSP", "ScopeDSP Suite", "ScopeFIR", "ScopeIIR", and the Iowegian logo are trademarks of Iowegian International Corporation