Hi, I downloaded a standalone version of 6.1.0 for macOS. After the unzip I just hit on the app. The app was started with a splash screen and 2 sec later crashed. Why?

My OSX version is 10.9.5. I think it's cool.

Hi Buba,

I apologize for the delayed reply. It looks like we need to bump up our minimal system requirements. For macOS the minimal requirement has to be increased to OS X 10.10 Yosemite. If you can't update your macOS then you can try using an older version of WireframeSketcher. You can find older versions here: https://wireframesketcher.com/download-archive.html

Version 5.0.4 works fine by me. Can I buy a license for it? Thx

Yes, a new license will also work for older versions.