For users on the web or iPad, you can install the MathType add-in directly through the Microsoft Marketplace or by selecting Get Add-ins tab in Word [1.15, 1.25]. Google Workspace:

MathType 6.0 is a powerful interactive equation editor for Windows and Macintosh. It allows you to create mathematical notation for word processing, web pages, desktop publishing, and presentations. It was specifically designed to work seamlessly with Microsoft Word, PowerPoint, and Adobe InDesign. Key Features of Version 6.0