You won’t need to pay a sum to upgrade an app it will automatically update the software for you and without any extra cost.
Since Microsoft office has changed its model into a subscription model, you’ll always have the most up to date version of the Office 365 suite. Today, if you want to purchase Microsoft Office 365, you have to buy it as a subscription to enjoy and benefit from all the features and upgrades they offer. However, in the last couple of years, they’ve changed their way of business. Microsoft Office managed their business like this for a long time. All you had to do was pay once to purchase Microsoft Office, and then you would have the software in perpetuity. Whenever you had decided to buy a computer, you could also buy a Microsoft Office box. In the past, Microsoft Office would sell boxes of software that included some of these applications.
