Updated October 13, 2026 · ShieldCue Editorial Team
Proton AG vs Tresorit AG
Facts checked September 26, 2026.
What sets them apart
| Compare |  Proton AG |  Tresorit AG |
|---|---|---|
| Devices | 10 | 2 to 10 |
| Platforms | Windows, MacOS, Linux, Chromebook, Android, iOS, Chrome, Firefox, Android TV, Apple TV, Amazon Fire TV | Windows, MacOS, Linux, Android, iOS, Web |
| Owner | Proton AG | Swiss Post (Swiss Post Digital) |
| Longest plan (months) | 24 monthsHigher | 12 months |
| Server countries | from 140 | Not confirmed |
| No-logs audit | Securitum, 2026 | Not confirmed |
| Money-back period | 30 days | Not confirmed |
| Protocols | WireGuard, OpenVPN | Not confirmed |
| Features | Kill switch, Split tunnelling | Not confirmed |
| Streaming services | Netflix, Hulu, Disney+, Amazon Prime Video | Not confirmed |
Same on both: Jurisdiction (CH).
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Key differences
- Platforms: only Proton AG offers Chromebook, Chrome, Firefox.
- Platforms: only Tresorit AG offers Web.
- Longest plan (months) is higher at Proton AG: 24 months vs 12 months.
- Support channels: only Proton AG offers Community.
- Support channels: only Tresorit AG offers Phone.
- Founded is lower at Tresorit AG: 2011 vs 2014.
Our verdict on each
Proton AG
Proton AG suits readers who want a published no-logs audit, a free tier and a bundled privacy suite rather than a bare tunnel, with the company based in Switzerland. Paid plans reach servers in from 140 countries and cover 10 devices, alongside free storage of 5 GB.
Tresorit AG
Tresorit is an end-to-end encrypted cloud storage platform for business teams that exchange sensitive files and collaborate across organizations. More than 11,000 organizations use it to protect client information, contracts and intellectual property while controlling sharing and data residency choices.
Score breakdown
| Area | Proton AG | Tresorit AG |
|---|---|---|
| Cost | 9.3Higher | 8.6 |
| Offer | 9.4HigherTerm choice runs to 24 months with a 30-day refund window, and a free plan anchors entry pricing. | 9.1 |
| Privacy | 8.9 | 8.9 |
How the counts compare
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| Devices | 10 | 2 to 10 |
| Longest plan (months) | 24 months | 12 months |
Sources behind this comparison
Proton AG
- protonvpn.com: 16 facts, checked September 26, 2026
- proton.me: 2 facts, checked September 26, 2026
Tresorit AG
- tresorit.com: 11 facts, checked September 26, 2026
How they place
| Ranking | Proton AG | Tresorit AG |
|---|---|---|
| VPNs | 26 of 232 | 69 of 232 |
| Privacy tools | 24 of 280 | 247 of 280 |
| Secure cloud storage and backup | 8 of 70 | 15 of 70 |
| Free VPNs | 22 of 189 | 59 of 189 |
Every fact side by side
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| Features | No logs, Streaming | Not confirmed |
| Audience | Business | Business |
| Pricing model | Free | Free |
| Legal entity | Proton AG | Tresorit AG |
| Headquarters | Switzerland | Switzerland |
| Founded | 2014 | 2011Lower |
| Support channels | Email, Chat, Help centre, Community | Chat, Email, Phone, Help centre |
Privacy tools
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| Free plan | Yes | Not confirmed |
| Free plan limits | No data or speed limits, no ads, no time limit, 1 device, servers in 10 countries randomly selected, medium speed. | Not confirmed |
| Logging policy | No activity logs | Not confirmed |
| Open source | Yes | Not confirmed |
| Privacy tool type | Ad blocker | Not confirmed |
Password managers
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| Family plan | Pass Family: up to 6 users, 6 Pass Plus accounts, admin panel | Not confirmed |
| Passkeys | Yes | Not confirmed |
| Security audit | Independently audited by third-party experts; audit reports public | Not confirmed |
| Encryption | Zero-knowledge end-to-end encryption, 256-bit AES-GCM vaults, OpenPGP with ECC Curve25519 for vault keys | Not confirmed |
| Zero-knowledge encryption | Yes | Yes |
Secure email
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| End-to-end encryption | The VPN connection from the user's device to Proton's servers; Proton also markets Proton for Business with end-to-end encryption. | Not confirmed |
Encrypted storage
| Fact | Proton AG | Tresorit AG |
|---|---|---|
| Free storage | 5Higher | 3 |
| Price per TB per year | Not confirmed | €119.88 |
| Compliance certifications | GDPR, HIPAA, ISO 27001 | GDPR, HIPAA, NIS2, DORA, FINRA, CCPA, TISAX |
Where each stands against the rest
| Fact | Proton AG | Tresorit AG | Median |
|---|---|---|---|
| Devices | 10at the median | 2 to 10at the median | 10 |
| Server countries | from 140highest quarter | Not confirmed | 62 |
| Money-back period | 30 daysat the median | Not confirmed | 30 days |
| Longest plan (months) | 24 monthsabove the median | 12 monthsat the median | 12 months |
Median across 139 listed providers.
Pros and cons
Proton AG
Pros
- No-logs claims are audited rather than asserted: Securitum's audit (Securitum, 2026) sits behind a No activity logs policy.
- Free limits come with no caps on data or speed, no ads and no time limit.
- 10 simultaneous devices, above the ranked VPN median of 8.
Cons
- Support runs on email, chat and help centre, and there is no phone line among them.
- The free plan limits put you on a single device at medium speed with randomly selected countries, so constant use points at a paid plan.
- End-to-end encryption is marketed for Proton for Business, while the consumer plan encrypts only the connection from your device to Proton's servers.
Tresorit AG
Pros
- Encrypts files on devices before upload with zero-knowledge protection
- Offers EU-only choice alongside 12 global data residency locations
- Provides granular access rights and sharing policies for sensitive files
Cons
- Focuses on business file exchange and team collaboration workflows
- Applies granular access controls that add decisions for small teams
Who each suits
Proton AG
Who it suits
- Readers who want a VPN, a passkey vault and encrypted storage under a single account instead of separate subscriptions.
- Families sharing storage, since Pass Family covers several users and Pass Plus seats through a single admin panel.
- Teams buying under a business audience (business) who need GDPR, HIPAA and ISO 27001 certifications on file.
Who should look elsewhere
- Anyone needing more devices on a single account: Proton covers 10, while ESET Brasil plans run 3 to 25 devices.
- Readers choosing purely on server spread: AVG lists from 100 countries, a base close to Proton's from 140.
- Readers who want a different audit trail to compare: Session Technology Foundation lists Quarkslab 2021 against Proton's Securitum, 2026.
Tresorit AG
Who it suits
- Business teams exchanging contracts and client information securely
- Healthcare and finance staff handling sensitive data
- IT administrators enforcing access controls across organizations
Who should look elsewhere
- Individuals seeking casual personal file storage
Current offers
Tresorit AG
Current offer
First period offer
Yearly billing 20% off: 20% OFF on yearly billing
Applies when the Yearly billing option is selected on the SecureCloud plans
Source, checked September 26, 2026
Free trial
Free trial of any plan: 14 days free, any plan, no limitations
Payment information required even during the trial; converts to a paid subscription at the end of the trial
Source, checked September 26, 2026
Questions about each
Proton AG
What does Proton VPN cost, and how long are the commitments?+
The longest plan runs 24 months, the service is listed on a free model, and paid plans carry a 30-day money-back window. Across the ranked VPN field, monthly pricing has a median of €7.02 and long-term pricing a median of €3.97, which frames any quote you see.
Is there a free plan, and what are its limits?+
Yes. The free plan has no caps on data or speed, no ads and no time limit. It runs on a single device, reaches servers in a randomly selected group of countries and delivers medium speed, so the paid tier, which covers 10 devices, is the practical step for constant use.
Tresorit AG
What does Tresorit provide?+
Tresorit provides end-to-end encrypted cloud storage for secure file exchange and collaboration. It protects business data, intellectual property, client information and contracts. Teams work together through one secure and intuitive platform across teams, clients and partners.
How does Tresorit protect file privacy?+
Tresorit encrypts all files on the device before they leave it. Only the sender and intended recipients hold the decryption keys. The company states that outsiders cannot view the data at any point, even briefly.
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