Vault Studio Pro vs Microsoft 365: which fits your work?

Who each is for

Microsoft 365 is for people and organizations who live in Word, Excel and PowerPoint: complex layouts, large workbooks with macros, co-authoring through OneDrive or SharePoint, and business compliance features. It needs a Microsoft account to install and activate, and the Personal and Family plans include Copilot and cloud storage.

Vault Studio Pro is for people who need to open, edit and return Office files, redact a PDF or encrypt a file, on any computer with a browser, without an account and without the file going to a cloud service.

Side by side

Choose Microsoft 365 if…

• You build complex Word layouts, or Excel models that depend on XLOOKUP, dynamic arrays or VBA macros.
• You co-author documents in real time or rely on OneDrive and SharePoint.
• You need a Business Associate Agreement: Microsoft makes its HIPAA BAA available to covered entities for its commercial online services through its Data Protection Addendum.
• You want Copilot, which Microsoft includes in Personal and Family plans.
• You want to remove metadata from Office files; Document Inspector does that in the desktop apps.

Choose Vault Studio Pro if…

• You don't want an account or cloud storage involved. Vault Studio Pro opens the file from your disk and saves it back; nothing is uploaded. See security.
• You need to edit an Office file on a computer where you can't install software.
• You need to redact a PDF so the text is removed, not covered. That's free here; see how it works.
• You want to password-encrypt a file with AES-256-GCM before sending it, using the File Safe.
• Your needs are everyday documents, budgets and decks, and you'd rather not pay a subscription.

Limits of Vault Studio Pro to know first

• Word import simplifies some things: headers and footers, exact fonts, text boxes and tracked changes from another program may be simplified or dropped. PDF export from Docs is image-only.
• Sheets has more than 70 functions but no XLOOKUP, FILTER, SUMPRODUCT or dynamic arrays; charts plot one series and aren't saved as native Excel charts; macros aren't run or kept.
• Slides turns gradients into solid colours, doesn't import charts or editable SmartArt, and drops group rotation.
• No real-time co-editing, cloud sync, mail merge or AI features.
• Projects stored in the browser aren't encrypted at rest; encrypted .vault exports need Vault Studio Pro and the password to open.
• No SSO, admin console, central policies or team billing.

Pro costs $9 for a one-off Week Pass, $15 a month, $99 a year or $299 once, and every Pro feature is unlocked for the first 7 days with no card. During the launch, a Founders plan costs $59 a year for as long as you renew (until 2026-12-01). See pricing. For accountants weighing Excel, read the finance guide.

Microsoft, Microsoft 365, Word, Excel, PowerPoint, OneDrive, SharePoint and Copilot are trademarks of their respective owners. Vault Studio Pro is not affiliated with, endorsed by or sponsored by any of them; the names are used only to identify the products compared. Competitor details come from each vendor's own pages, checked in September 2026, and can change. If something here is out of date, email [email protected] and we will correct it.