Microsoft Office 2021 Home and Business for 1 PC Mac Download black friday and blocking unauthorized access attempts Educational Toys and blocking unauthorized access attempts whether it's Outlook some features require a Microsoft 365 subscription Office 2021 (this) Microsoft 365 Cost One time purchase Annual subscription Feature updates Fixed at 2021 — security patches only Continuous new features Devices 1 PC or Mac Up to 5 devices (Personal Family) OneDrive storage 5GB (Microsoft account free tier) 1TB per user Microsoft Copilot AI No Yes (with Copilot add on) Support period Until October 2026 Ongoing while subscribed Best for Predictable one time cost Latest features + multi device Microsoft 365 Personal and Family are also available at ITFactory