Downloading MathMental 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program lies within Education Tools, more precisely Teaching Tools. This free software for Mac OS X is a product of Ujweng.
From the developer:
MathMental is a tool that lets you practice mental arithmetic and math calculation. The program's interface is simple, practical, and flexible. The tool supports machine-generated mental arithmetic test questions with custom difficulty levels. You can set the total number of tests, the time of the test and the total time of each question, and the number of operators. In addition, it supports setting fill in the blank type questions.
You may want to check out more Mac applications, such as eduMap, eimantai Exam or Rocky Shore Ecology AU, which might be related to MathMental.