EquatIO (Desktop) is compatible with the following Operating Systems and Microsoft Word versions:
Windows : 8, 10
Mac OS : 10.11 El Capitan, 10.12 Sierra, 10.13 High Sierra, 10.14 Mojave
Microsoft Word (Windows) : 2013 and 2016
Microsoft Word (Mac) : Word 16
Inserting equations as MathType and LaTeX are currently only supported from Word 16(v16.16.9) for Mac and Word 2016(build 1906)for Windows. Inserting equations as images will still work on Office 2013 for Windows.