You could have downloaded Convertigo 1.1 for Mac from our software library for free. The application lies within Business Tools, more precisely General. This Mac app is an intellectual property of midnite.liteman.
From the developer:
Convertigo is a simple utility designed to easily give you access to common units conversions. The design focuses on giving you a fast, clean, simple interface so that your conversions don't interfere with the rest of your workflow.
You may want to check out more Mac applications, such as Dynadot Account Management Client, which might be related to Convertigo.