The Swezey Digital Filter

Purchase the program

Be sure to try the free demonstration version before you buy. CLICK HERE!


The program is subject to my standard product disclaimer. To view the disclaimer Click Here!
Purchasing the program indicates that you have read and accept these conditions.

The program is $39.95 (US Dollars).

Please pay by credit card or check using PayPal.

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Review and complete your order

I will e-mail the program to you after the transaction has cleared.

Please allow several days for this to happen. Official PayPal Seal


If you are unable or unwilling to use PayPal please e-mail to make other arrangements Click Here!.

Free Upgrades

I believe that when you buy software you should be able to get any subsequent upgrades to it for free and that has always been my policy with this program. Any customer who has purchased the program since it was first introduced in 1999 can upgrade to the current version for free as long as they agree to the conditions in the disclaimer. I withhold the right to change this policy in the future but it is my current intention to continue it indefinitely.


If you have any questions please e-mail me Click Here!.

Thank you for purchasing the Swezey Digital Filter Program

Your support helps me recover significant development costs and continue my work in this area.

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(c) 1999-2012, Thomas F. Swezey. All rights reserved.