Article
Microsoft Office vs. Microsoft 365: What’s the Difference for Mac Users?
The short answer: they’re mostly the same thing wearing different name tags. In 2020, Microsoft renamed its Office 365 subscriptions to Microsoft 365. The apps inside (Word, Excel, PowerPoint) never changed. Today, “Microsoft 365” means the subscription you pay for every year, and “Office” survives only on the one-time-purchase versions like Office Home 2024. If you came here trying to figure out which one to put on your Mac, the name is the least important part of that decision, and our buyer’s guide walks through the part that matters: the price math.
But if you want to understand why your Mac’s dock says “Microsoft 365 Copilot” while the box at Best Buy says “Office Home 2024,” read on. The whole story takes about five minutes.
Same apps, different label
Start with what didn’t change, because it’s the thing people worry about most. Word is still Word. Excel is still Excel. PowerPoint is still PowerPoint. Whether you buy a Microsoft 365 subscription or a one-time copy of Office 2024, you get full desktop versions of these apps on your Mac, running natively on Apple Silicon.
The rename was a marketing decision, not a software one. Microsoft wanted a brand that covered everything bundled into the subscription beyond the classic apps: OneDrive cloud storage, Teams, the Defender security app, and now Copilot AI. “Office” described a suite of document apps. “Microsoft 365” describes the whole bundle. That’s the entire logic behind it.
A short history of the name changes
Microsoft has rebranded this product line three times in five years, which is why your aunt, your IT guy, and the Amazon listing all use different words for the same software. Here’s the timeline, with Microsoft’s own announcements linked so you can verify everything.
April 2020: Office 365 becomes Microsoft 365
On March 30, 2020, Microsoft announced that Office 365 would become Microsoft 365 on April 21 of that year. Office 365 Personal became Microsoft 365 Personal. Office 365 Home became Microsoft 365 Family. Microsoft called it “the subscription for your life,” and the announcement was explicit that subscribers didn’t need to do anything: same price, same apps, new name.
A companion announcement covered the business side the same day. Office 365 Business Essentials became Microsoft 365 Business Basic, Office 365 Business Premium became Microsoft 365 Business Standard, and so on. Confusingly, some enterprise and education plans kept the Office 365 name (Office 365 E3, Office 365 A1), which is why your college might still hand you something called “Office 365 Education” in 2026. If a student in your life mentions free Office 365 from school, that’s a real, current thing, and it’s the first option we recommend checking in our buyer’s guide.
October 2022: “Office is becoming Microsoft 365”
Two years later, Microsoft went further. The Office.com website and the all-purpose Office app were rebranded as the Microsoft 365 app, and microsoft365.com put it bluntly: “Office is becoming Microsoft 365.” This is the change that generated all the “Microsoft is killing Office” headlines you may remember. It wasn’t true. The individual apps kept their names, and the one-time-purchase products kept the Office brand. Only the umbrella changed.
January 2025: the Microsoft 365 app becomes Microsoft 365 Copilot
The most recent rename is the one currently confusing Mac users. In January 2025, Microsoft renamed the Microsoft 365 app (the hub app, the one formerly called Office) to the Microsoft 365 Copilot app, across the web, mobile, and desktop. Microsoft says the new name reflects Copilot AI being built into the experience.
So if you’ve spotted “Microsoft 365 Copilot” on your iPhone or in your Mac’s dock and wondered whether you accidentally installed something new: you didn’t. It’s the same launcher app, renamed a third time. Your actual Word, Excel, and PowerPoint apps are untouched and still open the same way they always have.
What each name means today
Here’s the decoder ring, current as of June 2026 and verified against Microsoft’s own comparison page:
| If you see this name | It means |
|---|---|
| Microsoft 365 (Personal, Family, Premium) | The subscription. $99.99 to $199.99 per year. Always-current apps, 1TB+ of OneDrive, Copilot AI included. |
| Office Home 2024 / Office Home & Business 2024 | The one-time purchase. Pay once ($179.99 or $249.99), own it, no subscription. Still officially named “Office.” |
| Office 365 | The old subscription name, retired for consumers in 2020 but still alive in education and some enterprise plans. If your school offers it, it’s legitimate and usually free to you. |
| Microsoft 365 Copilot (the app) | The hub/launcher app formerly known as the Office app. Not a separate product you bought. |
| Microsoft Office (generic) | What everyone still calls all of the above in conversation, including us, including Microsoft’s own support pages. |
Notice the pattern: subscription products got the Microsoft 365 name, and the buy-it-once products kept the Office name. That single sentence resolves about 90% of the confusion. If it renews annually, it’s Microsoft 365. If you paid once and you’re done, it’s Office.
Even Microsoft blurs its own line, though. Its official support page comparing Microsoft 365 and Office 2024 describes a one-time purchase as a way “to get Microsoft 365 apps for one computer.” So the product named Office contains apps Microsoft now calls Microsoft 365 apps. If you’ve felt confused, you’re in good company: the company that did the renaming hasn’t fully kept its own story straight.
A useful way to think about it: Microsoft 365 is like a streaming subscription, while Office 2024 is like buying the box set. Same shows either way. One keeps adding new episodes as long as you keep paying; the other is yours forever exactly as purchased.
What this looks like on your Mac
A few Mac-specific notes, since this site exists for exactly these questions:
Your installed apps are individual apps. On a Mac, Word, Excel, PowerPoint, and friends live in your Applications folder as separate apps regardless of how you bought them. There’s no monolithic “Office” application, and there never was on macOS. The branding difference shows up in how the apps update and activate, not in how you use them.
The Mac App Store sells the subscription, not the box. Apple distributes Microsoft 365 for Mac through the Mac App Store, but only as a subscription. If you want the one-time Office Home 2024, you buy it from Microsoft directly or an authorized retailer. Our guide covers where to buy safely and which “lifetime Office” deals to run from.
Both versions run great on Apple Silicon. Office 2024 and the Microsoft 365 apps are native on M1 through M5 Macs and supported on the three most recent versions of macOS. The name on the receipt has zero effect on performance.
Your old “Office 365” subscription is already Microsoft 365. If you subscribed years ago and your bank statement or account page once said Office 365, you were converted automatically in 2020. Nothing for you to do.
So which one should you buy?
The naming history is trivia. The real decision is the fork underneath it: pay once and own it (Office 2024), or pay yearly for the bundle (Microsoft 365). That choice comes down to whether you collaborate in real time, whether you want Copilot, how many people in your house need the apps, and whether a student discount applies to you.
We’ve done that math, verified the prices against Microsoft’s pages, and ranked all six options for Mac users in the Independent Buyer’s Guide to Microsoft Office on Mac. The short version: most individual Mac users come out ahead with the one-time purchase, families with two or more real Office users come out ahead subscribing, and students should try their school email at office.com before spending a dollar. For a deeper look at just the own-vs-rent question, we wrote Should I buy Office 2024 or subscribe to Microsoft 365 for my Mac?, which includes a 60-second decision quiz.
Frequently asked questions
Is Microsoft Office discontinued?
No. The name has been de-emphasized in favor of Microsoft 365, but Office lives on as the brand for one-time purchases. Office 2024 for Mac is current, supported, and sold by Microsoft today.
Is Microsoft 365 the same as Office 365?
For consumers, yes. Office 365 Personal and Home became Microsoft 365 Personal and Family in April 2020 with no change to price or apps. The Office 365 name still appears on some education and enterprise plans.
Do Microsoft 365 and Office 2024 include the same apps on Mac?
The core four are identical: Word, Excel, PowerPoint, and OneNote. Office Home & Business 2024 and every Microsoft 365 subscription add the Outlook desktop app. The subscription also adds OneDrive storage, Copilot, Teams, and Defender, which the one-time versions don’t have.
Why does my Mac say "Microsoft 365 Copilot" now?
Microsoft renamed its hub app (formerly the Office app, then the Microsoft 365 app) to Microsoft 365 Copilot in January 2025. It’s a rename, not a new install, and your individual apps work exactly as before.
Do I need a Microsoft 365 subscription to use Word on a Mac?
No. Office Home 2024 includes full desktop Word for Mac as a one-time purchase. You only need the subscription for cloud features like real-time co-editing, OneDrive, and Copilot.
Sources: Microsoft’s consumer rebrand announcement (March 30, 2020), business rebrand announcement (March 30, 2020), Microsoft 365 Copilot app transition, Microsoft’s support article “What’s the difference between Microsoft 365 and Office 2024?”, and the official plan comparison page. Prices verified June 11, 2026.