Microsoft OneDrive is the path of least resistance for Windows users. It is preinstalled, integrates with File Explorer, and is included with any Office 365 subscription. The convenience is real, but so are the tradeoffs.
Privacy and content scanning
OneDrive scans every file you upload against Microsoft's PhotoDNA database and other content-matching systems. Files flagged as policy violations can be removed and your account suspended. There is no end-to-end encryption option for standard OneDrive accounts.
FortressDrive cannot scan your files because we cannot read them. Files are encrypted on the way up with AES-256-GCM, the server stores only ciphertext, and decryption keys are bound to your session.
Storage and price
OneDrive is the cheapest if all you need is cloud storage plus Office. FortressDrive costs more per gigabyte, but the price includes an encrypted vault, AI assistant, crypto wallet, notes, journal and finance tools — features Microsoft sells separately or does not offer at all.
- OneDrive Free — 5GB.
- OneDrive 100GB — $1.99/mo.
- Microsoft 365 Personal — $6.99/mo, 1TB plus Office apps.
- FortressDrive SHIELD — 1GB free.
- FortressDrive DOMINION — $79/mo, 1TB plus Personal OS suite.
Lock-in
OneDrive ties your data to a Microsoft account and Windows ecosystem. FortressDrive runs in any browser, on any OS, with no lock-in. Export your files at any time as a single ZIP.
Verdict
Pick OneDrive if you are deeply inside the Microsoft ecosystem and trust Microsoft with your data. Pick FortressDrive if you want OS-independent, end-to-end encrypted storage that also replaces your password manager, notes app, and crypto wallet.