Memm
10 months ago
For the record it says Mac is not currently supported in big, bold, capitals letters on the main product page under the requirements section. It also says it in the FAQ. It also says it in the Blender Artists thread. You can also try for free before supporting the project. And you can get a refund as per Blender Market policies.
And now it also says it in the reviews. : )
Also please keep in mind a Mac version is planned for some point in the future when time and development budget allows. Thank you for supporting Unwrap Me and have a great day!