| Feature | Office 2021 Pro Plus (Perpetual) | Microsoft 365 (Subscription) | | :--- | :--- | :--- | | | One-time purchase | Monthly/Annual fee | | Cloud Storage | None (1TB requires separate purchase) | 1TB OneDrive included | | Support Lifespan | 5 years (fixed) | Continuous updates | | AI Tools & Copilot | No | Yes (with premium tiers) | | Device Limit | 1 PC (or 1 Mac) | Up to 5 devices per user |
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: Integrated communication software for video calls and messaging. How to Download and Install on PC | Feature | Office 2021 Pro Plus (Perpetual)