Windows to Macintosh Crossgrade:
If you currently own KaleidaGraph on a Windows platform, you can purchase a copy of KaleidaGraph on a Macintosh platform for $99 (instead of paying the full price of a new product purchase). You are still entitled to use your Windows product and can even upgrade it if you desire.

Macintosh to Windows Crossgrade:
If you currently own KaleidaGraph on a Macintosh platform, you can purchase a copy of KaleidaGraph on a Windows platform for $99 (instead of paying the full price of a new product purchase). You are still entitled to user your Macintosh product and can even upgrade it if you desire.