There are two versions of Office today, Office 365 and Office 2019. Office 365 is a cloud based version that you pay for monthly or on an annual basis. Office 2019 is a desktop (perpetual) version you pay for one time up front.
Office 365 is cloud based but you don’t have to be connected to the internet to use it. It uses the cloud for updates and additional features like OneDrive which gives you 1 TB of free online storage and email access. There are Office 365 plans for home and personal use, as well as for small and midsize businesses, large enterprises, schools, and non-profits. Home allows up to 6 users to share the subscription on PC’s and mobile devices while personal is for a single user.
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.
One note for all versions whether online on desktop is that none of them include backup even for email so make sure you plan to backup your information in case of a hardware failure, virus or ransomware. CCT does offer a backup program where we will set up the backup for you. Just call us at (419)379-1412 for more details. We also offer Office 365 if you would like to purchase it.
One of the big differences between the two is that Office 365 will keep you updated with the latest version of Office apps as long as you connect to the internet. That's why it doesn't have a year designation. As long as you maintain your subscription you will have the latest version of software. It also adds new features as they become available and web based features not available on the desktop version. You won't get those features until the next time you buy the latest desktop version. Also technical support is included as long as you have your Office 365 subscription while only installation assistance is provided for the desktop version. It's clearly the case of “pay me now or pay me later”.
Articles with more details:https://www.computerworld.com/article/3205968/what-are-the-differences-between-office-2016-office-2019-and-office-365.html