A buyer's guide to private cloud storage that does not scan your files, does not ban your account on AI flags, and does not collapse your photos and business data on a moderator's bad day.

Three private surfaces. Same zero-knowledge architecture.
None of these are "bad products". They are wrong tools for files you would not put on a public bulletin board.
| Provider | Zero-knowledge | Client-side encryption | Provider cannot decrypt | No plaintext analysis | User-controlled keys |
|---|---|---|---|---|---|
Google Drive Provider-managed encryption. Content accessible to provider-side systems. | |||||
DRIVUNOYou Encrypted on your device before upload (Argon2id + X25519 + XChaCha20-Poly1305). |
Provider-managed encryption. Content accessible to provider-side systems.
Encrypted on your device before upload (Argon2id + X25519 + XChaCha20-Poly1305).
Three private surfaces. Same zero-knowledge architecture.