Wiris acquired MathType in 2017. Since then:
If you have old documents containing MathType equations ( .eqn files) and no valid key: mathtype 744516 product key free top
: To activate, users navigate to the Help > Unlock/Register MathType menu within the application to enter their purchased key. Risks of Using "Free" Product Keys Wiris acquired MathType in 2017
A pop-up window frozen his screen: Trial Period Expired. Please enter your product key to continue. mathtype 744516 product key free top