You may order CurveExpert Pro, GraphExpert Pro, and CurveExpert Basic quickly and easily via a credit card (Visa, MC, AMEX, Discover) or Paypal. Just click one of the boxes above, or select one of the following options:


Your license will work on any of the supported platforms (Windows, Mac, or Linux), and you may install simultaneously on up to three personally owned devices.

Upgrading from CurveExpert Basic

Registered users of CurveExpert Basic can upgrade to either CurveExpert Pro or GraphExpert Pro at a discount price of $35.  Visit the registered users area to upgrade, using the same password given to install CurveExpert Basic.

Upgrading from CurveExpert Pro 1.x to 2.x

Registered users of CurveExpert Pro 1.x can upgrade to 2.x at a discount price of $15.  Visit the registered users area to upgrade, using the same password given in your licensing email for CurveExpert Pro 1.x.

Site Licenses

For large orders of CurveExpert (multiple copies), discounted purchase prices are available. Site license orders can be made at the appropriate link below; simply click the link and pick the desired quantity. Note that you should remove "extended download service from your cart", since you can always redownload the software here at the CurveExpert website free of charge.

Please contact me if you have any questions about a site license order.