Microsoft 365 Apps for Business: Designed for use on up to 5 PCs or Macs, as well as 5 tablets – including iPad, Android, or Windows, and 5 phones. But before you buy, let's compare Microsoft Office versions so you can choose the right software for all the things you do. What you might not realize, is that Office comes in a variety of versions designed for different needs, uses and computers. From the power to create documents and presentations, to the ability to design database apps and stay in touch via email, Office simplifies the way you work online, and off. Microsoft Office and Microsoft 365 give you access to the programs you need to work, play, and stay connected.