Our website provided a free download of Minvoice 2.180821 for Mac. The program lies within Business Tools, more precisely Finances. The actual developer of this software for Mac is Computer Dimensions Inc.
From the developer:
Minvoice is a minimal, one-step-above-paper invoicing app (with a few improvements). Designed for quick startup and ease of entry.
You may want to check out more Mac applications, such as Personal Finance, Putler or Small Business Tracker Deluxe, which might be related to Minvoice.