# Proton Drive vs Tresorit — Cloud Storage & File Sharing

As of 1 Nov 2026, the panel rates [Proton Drive](https://whats-best.ai/software/cloud-storage/proton-drive) 3/5 and [Tresorit](https://whats-best.ai/software/cloud-storage/tresorit) 3.5/5 in Cloud Storage & File Sharing. Weighted by what each judge cares about, 0 of the 6 judges pick Proton Drive and 5 pick Tresorit, 1 calls it a tie. Proton Drive scores higher on 3 of 7 criteria (European sovereignty, Encryption, key custody & recovery and Sync, clients & file access). Tresorit scores higher on 3 of 7 criteria (Sharing & external collaboration, Administration, audit & governance and Export, API & self-hosting). Provenance — Proton Drive: UK / wider Europe; Tresorit: UK / wider Europe. Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering).

- Canonical page: https://whats-best.ai/compare/proton-drive-vs-tresorit
- Proton Drive: https://whats-best.ai/software/cloud-storage/proton-drive ([md](https://whats-best.ai/software/cloud-storage/proton-drive.md))
- Tresorit: https://whats-best.ai/software/cloud-storage/tresorit ([md](https://whats-best.ai/software/cloud-storage/tresorit.md))
- Category: [Cloud Storage & File Sharing](https://whats-best.ai/software/cloud-storage.md)
- Data as of: 2026-11-06

**AI-generated.** Both products were evaluated from public evidence by the same panel of AI judges under the same rubric; without that, no comparison is published. Not a hands-on test; no score can be bought, on either side. How scores are made: https://whats-best.ai/methodology

## The short answer

Proton Drive holds the security bench: encryption and security averages 8.7 to 7.8, with five judges leaning its way and one tie, and sovereignty runs 8.0 to 7.0 on six leans — its verdict records a Swiss entity, self-owned data centres in Switzerland and Germany, and a published GDPR data processing agreement, with payment and support subprocessors such as Stripe and Zendesk processing in the United States under standard contractual clauses. Tresorit takes sharing and collaboration 8.8 to 5.8 and administration and governance 7.0 to 5.8 on six leans each, plus portability and integrations 4.8 to 4.0 on five leans with one tie. Sync and access, 5.8 to 5.7, and pricing transparency, level at 5.8, split one lean either way with four ties each. On weighted totals, five judges put Tresorit ahead; the architect scores both 6.1.

**Choose Proton Drive if:**
- You rank encryption and security first: five judges lean Proton Drive there, 8.7 to 7.8, and the verdict records contents, names and metadata encrypted on the device with keys never leaving it.
- Your procurement wants a Swiss footing: the verdict records Proton AG contracted under Swiss law, self-owned data centres in Switzerland and Germany, and a published GDPR data processing agreement, and six judges lean Proton Drive on sovereignty, 8.0 to 7.0.
- You need long recovery windows: the verdict records ten years of version recovery on paid plans.
- You want code you can inspect: the verdict records open-source apps with published Securitum audits and a bug bounty reaching USD 100,000.

**Choose Tresorit if:**
- Your work runs through external sharing: six judges lean Tresorit on sharing and collaboration, 8.8 to 5.8, on encrypted links with password, expiry, disabled download and print, watermarks, and file requests for recipients without an account.
- You administer a team: six judges lean Tresorit on administration and governance, 7.0 to 5.8.
- You weight portability and integrations: five judges lean Tresorit there, 4.8 to 4.0, with one tie.
- Your team edits documents in place: the verdict records zero-knowledge office editing on Collabora.

## Overall

| | Proton Drive | Tresorit |
|---|---|---|
| Panel rating | 3/5 | 3.5/5 |
| Provenance | UK / wider Europe | UK / wider Europe |
| Sovereignty | not determined | not determined |

## The bench's picks

| Judge | Proton Drive | Tresorit | Pick |
|---|---|---|---|
| The IT Lead | 3/5 | 3.5/5 | Tresorit |
| The Data Protection Officer | 3.5/5 | 3.5/5 | Tresorit |
| The Architecture Practice Partner | 3/5 | 3/5 | tie |
| The Tax Adviser | 3.5/5 | 3.5/5 | Tresorit |
| The Agency Producer | 3/5 | 3.5/5 | Tresorit |
| The Skeptic | 3/5 | 3.5/5 | Tresorit |

## Criterion by criterion

Bench average per criterion, out of 5; the lean counts which product each judge scored higher.

| Criterion | Proton Drive | Tresorit | The bench leans |
|---|---|---|---|
| Sync, clients & file access | 3/5 | 3/5 | split 1–1 |
| Sharing & external collaboration | 3/5 | 4.5/5 | Tresorit, 6 of 6 judges |
| Encryption, key custody & recovery | 4.5/5 | 4/5 | Proton Drive, 5 of 6 judges |
| Administration, audit & governance | 3/5 | 3.5/5 | Tresorit, 6 of 6 judges |
| Export, API & self-hosting | 2/5 | 2.5/5 | Tresorit, 5 of 6 judges |
| European sovereignty | 4/5 | 3.5/5 | Proton Drive, 6 of 6 judges |
| Pricing transparency | 3/5 | 3/5 | split 1–1 |

## Sovereignty, side by side

| Dimension | Proton Drive | Tresorit |
|---|---|---|
| Legal entity | Not determined | Not determined |
| Hosting location | Not determined | Not determined |
| Hosting options | Not determined | Not determined |
| Open source | Not determined | Not determined |
| Data processing agreement | Not determined | Not determined |
| Transfer impact assessment | Not determined | Not determined |

## Facts, side by side

Only facts both products carry under the same definition; each is the vendor's own dated statement ([S*n*] → Sources).

| Fact | Proton Drive | Tresorit |
|---|---|---|
| Compliance · Certifications | SOC 2 Type II · ISO 27001 [S1] | yes · yes [S2] |
| Compliance · DPA | yes · yes [S3] | Business Subscription subject to EU Data Protection Laws · yes [S4] |
| Compliance · ISO 27001 | yes · yes [S5] | TÜV Rheinland · ISO 27001:2022 · yes [S6] |
| Legal · Entity | Proton AG · Route de la Galaise 32, 1228 Plan-les-Ouates, Geneva, Switzerland [S7] | Tresorit AG · Pfingstweidstrasse 60b, CH-8005 Zurich, Switzerland [S4] |
| Legal · Governing law | Courts of the Canton of Geneva · Switzerland [S3] | Switzerland [S8] |
| Legal · Liability cap | 100 · amount paid [S3] | fees paid in past six months of the service [S4] |
| Pricing · Free tier | yes [S9] | yes · yes [S4] |
| Product · E2e encryption | File sharing is protected by end-to-end encryption [S9] | yes [S6] |
| Product · Encryption | yes [S10] | yes [S11] |
| Product · Password recovery | no [S3] | no [S4] |
| Product · Platforms | Windows · macOS · Android · iOS · web [S12] | Windows · macOS · Linux · iOS · Android · Web [S11] |
| Product · Revoke access | Revoke access to shared files and folders in one click [S9] | admin password reset and device access revocation via Advanced Control [S13] |

## Sources

- [S1] Security / trust page (business data security): https://proton.me/business/drive/security (checked 2026-11-01)
- [S2] Encryption, key custody & recovery — found from sitemap: https://tresorit.com/features/zero-knowledge-encryption (checked 2026-11-01)
- [S3] Terms of service: https://proton.me/legal/terms (checked 2026-11-01)
- [S4] Terms of service: https://tresorit.com/terms-of-use (checked 2026-11-01)
- [S5] Vendor homepage (Proton Drive for business): https://proton.me/business/drive (checked 2026-11-01)
- [S6] Encryption, key custody & recovery — found from sitemap: https://tresorit.com/de/cloud-sicherheit (checked 2026-11-01)
- [S7] Administration, audit & governance — found from sitemap: https://proton.me/business/features (checked 2026-11-01)
- [S8] Terms of service (data residency option): https://tresorit.com/legal/data-residency-option-specific-terms (checked 2026-11-01)
- [S9] Sharing & external collaboration — found from sitemap: https://proton.me/drive/file-sharing (checked 2026-11-01)
- [S10] Sync, clients & file access — found from sitemap: https://proton.me/drive/download (checked 2026-11-01)
- [S11] Pricing page: https://tresorit.com/pricing/business (checked 2026-11-01)
- [S12] Features page (Proton Drive): https://proton.me/drive (checked 2026-11-01)
- [S13] Security / trust page: https://tresorit.com/security (checked 2026-11-01)

## Questions

### Which is better, Proton Drive or Tresorit?

As of 1 Nov 2026, the panel rates Tresorit higher: 3.5/5 against 3/5. Weighted by what each judge cares about, 0 of the 6 judges pick Proton Drive and 5 pick Tresorit, 1 calls it a tie. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, [as the methodology describes](https://whats-best.ai/methodology).

### Is Proton Drive or Tresorit European?

Proton Drive is European (UK / wider Europe). Tresorit is European (UK / wider Europe). Provenance is read from each company’s own legal pages: who builds it and who owns it.

### Do Proton Drive and Tresorit have a free plan?

As of 1 Nov 2026, both vendors’ own pages state a free plan. Each product page links the pricing page it was read from.

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Cite as: whats-best.ai, "Proton Drive vs Tresorit", AI panel comparison, as of 2026-11-06. https://whats-best.ai/compare/proton-drive-vs-tresorit