Microsoft 365 vs Proton Workspace: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Microsoft 365 and Proton Workspace side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Microsoft 365 leads on lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Microsoft 365
Productivity suite by Microsoft
Best for you if:
- • You want complete productivity suite
Proton Workspace
Privacy-first business suite with encrypted email, storage, and AI
Best for you if:
- • You want strongest privacy protections with end-to-end encryption and Swiss jurisdiction
| At a Glance | Microsoft 365 | Proton Workspace |
|---|---|---|
Starts at | From $6/user/mo, billed monthly Basic plan | From $12.99/user/mo, billed monthly Workspace Standard plan |
Category | File Management Productivity | Email Productivity |
Rating | n/a | 4.6/5 G2 4.6 32 reviews |
Free plan | No | No |
Watch out for | Existing customers stay on current pricing until renewal. | Storage limited to 1 TB per user on Standard |
Choose Microsoft 365 or Proton Workspace?
Choose Microsoft 365 if
- You want complete productivity suite
- You want desktop and web apps
- Budget matters ($6/user/mo, billed monthly vs $12.99/user/mo, billed monthly)
- You work in file management, not email
Choose Proton Workspace if
- You want strongest privacy protections with end-to-end encryption and Swiss jurisdiction
- You want all-in-one suite covering email, storage, meetings, VPN, and passwords
- You work in email, not file management
In-Depth Analysis
Microsoft 365
Productivity suite by Microsoft
Microsoft 365 is the default productivity suite for businesses worldwide, and for good reason.
Watch out
Existing customers stay on current pricing until renewal.
Strengths
- Pro: Complete productivity suite
- Pro: Desktop and web apps
- Pro: 1TB OneDrive included
- Pro: Teams included
- Pro: Familiar interface
Weaknesses
- Con: Subscription required
- Con: Per-user pricing
- Con: Sync issues possible
- Con: Feature bloat
- Con: Privacy concerns
Key features
Proton Workspace
Privacy-first business suite with encrypted email, storage, and AI
Proton Workspace pricing is fair for privacy-focused businesses, with Standard at $12.99/user/month and Premium at $19.99/user/month offering strong encryption and bundled tools like VPN and password manager.
Watch out
Storage limited to 1 TB per user on Standard
Strengths
- Pro: Strongest privacy protections with end-to-end encryption and Swiss jurisdiction
- Pro: All-in-one suite covering email, storage, meetings, VPN, and passwords
- Pro: Open-source and independently audited for security and compliance
Weaknesses
- Con: No permanent free tier for business (only 14-day trial)
- Con: Smaller third-party integration ecosystem compared to Google and Microsoft
- Con: AI assistant (Lumo) has limited capabilities compared to mainstream AI tools
Key features
Plans and prices: Microsoft 365 vs Proton Workspace
| Tool | Plans and prices | Source |
|---|---|---|
| Microsoft 365 |
| microsoft.com/microsoft-365/pricing read Sep 29, 2026 |
| Proton Workspace |
| proton.me/business read Oct 20, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Microsoft 365 pricing and Proton Workspace pricing.
Key Takeaways
Microsoft 365
- Lower entry price: $6/user/mo, billed monthly vs $12.99/user/mo, billed monthly
Proton Workspace
- Choose if you want privacy-first business suite with encrypted email, storage, and AI
What the data shows
On the data below, Microsoft 365 leads on lower entry price. We do not name an overall winner for this pair.
- Only Proton Workspace has a published user rating (4.6/5 from 32 reviews); Microsoft 365 has none we can show.
- Microsoft 365 has the lower entry price: $6/user/mo, billed monthly (Basic) against $12.99/user/mo, billed monthly (Workspace Standard) for Proton Workspace.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Microsoft 365 and Proton Workspace compare in 2026?
On the data below, Microsoft 365 leads on lower entry price. We do not name an overall winner for this pair. Only Proton Workspace has a published user rating (4.6/5 from 32 reviews); Microsoft 365 has none we can show. Microsoft 365 has the lower entry price: $6/user/mo, billed monthly (Basic) against $12.99/user/mo, billed monthly (Workspace Standard) for Proton Workspace.
What are Microsoft 365 and Proton Workspace used for?
Microsoft 365: Productivity suite by Microsoft. Proton Workspace: Privacy-first business suite with encrypted email, storage, and AI.
What does Microsoft 365 cost vs Proton Workspace?
Microsoft 365's cheapest paid plan is Basic at $6/user/mo, billed monthly. Proton Workspace's cheapest paid plan is Workspace Standard at $12.99/user/mo, billed monthly. Prices read on the vendors' pricing pages, latest check Oct 20, 2026.
What's the main difference between Microsoft 365 and Proton Workspace?
Microsoft 365's main strength: complete productivity suite. Proton Workspace's main strength: strongest privacy protections with end-to-end encryption and Swiss jurisdiction.