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What's the difference between Microsoft 365 and Office 2019?

Office 2019 Office 2019 for Mac Office for business Microsoft 365 for home

Microsoft 365 is a subscription service that ensures you always have the most up-to-date modern productivity tools from Microsoft. There are Microsoft 365 plans for home and personal use, as well as for small and midsized businesses, large enterprises, schools, and non-profits.

Microsoft 365 plans for home and personal include the robust Office desktop apps that you’re familiar with, like Word, PowerPoint, and Excel. You also get extra online storage and cloud-connected features that let you collaborate on files in real time. With a subscription, you'll always have the latest features, fixes, and security updates along with ongoing tech support at no extra cost. You can choose to pay for your subscription on a monthly or yearly basis, and the Microsoft 365 Family plan lets you share your subscription with your family for up to 6 people, and use your apps on multiple PCs, Macs, tablets, and phones.

Most of the Microsoft 365 plans for business, schools, and non-profits include the fully installed desktop apps, but Microsoft also offers basic plans with the online versions of Office, file storage, and email. You decide what works best for you: Small business, Enterprise, School, or Non-profit.

Office 2019 is sold as a one-time purchase, which means you pay a single, up-front cost to get Office apps for one computer. One-time purchases are available for both PCs and Macs. However, there are no upgrade options which means if you plan to upgrade to the next major release, you'll have to buy it at full price.

Office Online is a free version of Office that you can use in a web browser. All you need is to sign up for a Microsoft Account with a new or existing email address. Try the Office Online apps.

Not sure what you have now? See What version of Office am I using?

Ready to install Office? See Install Office on your PC or Mac.

Compare Microsoft 365 subscription with Office 2019 (one-time purchase)

One-time purchase
(Example: Office Home & Student 2019)

Microsoft 365 subscription
(Example: Microsoft 365 Family*)


Pay a single, one-time cost

Pay a small monthly fee, or save by paying for a full year

Office applications

Get Office apps like Excel, Word, and PowerPoint.

Get the latest version of Office apps like Excel, Word, PowerPoint, and Outlook. You'll always get the latest features, new tools, security updates, and bug fixes. PC users also get Access and Publisher.

Feature updates

Security updates are included, but you won’t get any new features. Upgrades to major releases aren't included.

Your version of Office will always be improving. You'll get all the latest features and updates, as well as security updates and bug fixes.

Install Office on more than one computer (Mac or PC)

One-time purchases can be installed once on either a PC or Mac.

With Microsoft 365 Family, you can install Microsoft 365 on all your devices and sign in to five at the same time - that means you can use Office no matter where you are or what device you’re on. This includes PCs, Macs, tablets, and phones. You can also share you subscription with up to five other people.

Advanced features on tablets and phones

Install the mobile apps for free and get basic editing features on tablets or phones under 10.1"

Install the mobile apps for free and get extra features when you sign in to Office apps on your device.

Extra online storage

Not included.

Securely store your files in the cloud and access them from anywhere. Get 1 TB of OneDrive cloud storage per user, for up to 6 users including yourself. (Microsoft 365 Family).

Technical support is included

Initial technical support is included for installing only.

Contact us throughout your subscription at no extra cost for help with technical issues, or for subscription and billing support.

* This Microsoft 365 subscription is for home or personal use only.