NOTE: this software is for Classic Mac OS (eg: OS 9) and cannot be used on Mac OS X.
Nisus Writer Classic is no longer for sale. This page is only for archival purposes.

Design Science Inc. is the creator of MathType, a more complete version of Nisus Writer's built-in equation tool. Registered users of Nisus Writer can upgrade to a MathType for a special low price. Check out this link for everything you ever wanted to know about MathType.