Updated September 28, 2026 · ShieldCue Editorial Team
Proton vs Tresorit AG
Where Proton and Tresorit AG differ
| Compare |  Proton |  Tresorit AG |
|---|---|---|
| Price from | $4.99 | €4.99 |
| Free plan limits | Unlimited logins, notes, credit cards and devices; 10 hide-my-email aliases; passkeys and password health alerts; no 2FA authenticator, secure sharing, file attachments or dark web monitoring | 3 GB storage, 500 MB max file upload, 2 devices, 10 encrypted links per month |
| Platforms | Windows, MacOS, Linux, Android, iOS, Web app, Command line interface, Chrome, Safari, Firefox, Edge, Brave | Windows, Mac, Linux, Android, iOS, Web |
| Open source | YesHas it | No |
| Protocols | WireGuard, OpenVPN | Not confirmed |
| Logging policy | No permanent IP logs by default; temporary IP logs kept to combat abuse and fraud; authentication logging off by default; Proton states it has no technical means to access encrypted passwords or notes | Not confirmed |
Same on both: Free plan (Yes), Jurisdiction (CH).
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- Proton scores higher overall: 9.3 vs 8.9.
- Platforms: only Proton offers MacOS, Web app, Command line interface.
- Platforms: only Tresorit AG offers Mac, Web.
- Open source: only Proton.
- Founded is lower at Tresorit AG: 2011 vs 2014.
Our verdict on each
Proton
Proton bundles a password manager, VPN and encrypted storage in one account, with Pass starting at $4.99 and a free tier. It suits readers who want passwords, private files and a VPN in a single subscription, and who can live with free plan limits that leave out an authenticator, password sharing and file attachments.
Tresorit AG
Tresorit AG suits people who put end-to-end encryption and compliance above storage volume. It is a Swiss provider running since 2011, with end-to-end encryption and apps on Windows, Mac and Linux. The trade-off is price, since rivals hand out more free space.
Score breakdown
| Area | Proton | Tresorit AG |
|---|---|---|
| Cost | 9.2HigherEntry at $4.99 sits under the site median of €6.84, with storage at $95.88 per TB per year and a free plan. | 8.7Personal plan starts at €4.99, or €119.88 per TB per year, against a site median of €82.87. |
| Offer | 9.5Higher | 8.9Free plan holds 3 of space, end-to-end encryption is on, and apps cover Windows, Mac and Linux. |
| Privacy | 9.1 | 9.3Higher |
What we checked
Proton
- proton.me: 12 facts, checked September 26, 2026
- privacyjournal.net: 1 fact, checked September 26, 2026
Tresorit AG
- tresorit.com: 10 facts, checked September 26, 2026
- trusted.de: 1 fact, checked September 26, 2026
How they place
| Ranking | Proton | Tresorit AG |
|---|---|---|
| Privacy tools | 10 of 280 | 45 of 280 |
| Secure cloud storage and backup | 2 of 70 | 11 of 70 |
Every fact side by side
| Fact | Proton | Tresorit AG |
|---|---|---|
| Pricing model | Free | Free |
| Legal entity | Proton AG | Tresorit AG |
| Headquarters | Switzerland | Switzerland |
| Founded | 2014 | 2011Lower |
| Support channels | Email, Chat, Help centre, Community | Email, Chat, Help centre, Community |
VPN
| Fact | Proton | Tresorit AG |
|---|---|---|
| Devices | 10 | Not confirmed |
| Server countries | 140 | Not confirmed |
| Features | No logs, Streaming, Travel | Not confirmed |
| Audience | Business | Not confirmed |
| Money-back period | 30 days | Not confirmed |
| Features | Kill switch | Not confirmed |
| Streaming services | Netflix, Amazon Prime Video, Disney+, Hulu | Not confirmed |
| Owner | Proton Foundation | Not confirmed |
| Longest plan (months) | 24 months | Not confirmed |
Password managers
| Fact | Proton | Tresorit AG |
|---|---|---|
| Family plan | Pass Family: up to 6 users, includes 6 Pass Plus accounts and an admin panel | Not confirmed |
| Passkeys | Yes | Not confirmed |
| Security audit | Independently audited by third-party experts (Cure53 audit published July 2023), open source under GPLv3, public bug bounty | Not confirmed |
| Encryption | End-to-end encryption; 256-bit AES-GCM encrypted vaults; OpenPGP with ECC (Curve25519) for vault keys | Not confirmed |
| Zero-knowledge encryption | Yes | Yes |
Secure email
| Fact | Proton | Tresorit AG |
|---|---|---|
| End-to-end encryption | All fields end-to-end encrypted: passwords, usernames, web addresses, credit cards, note contents and metadata; 256-bit AES-GCM vaults; only the user can decrypt, Proton cannot | Not confirmed |
| Custom domains | Yes | Not confirmed |
Encrypted storage
| Fact | Proton | Tresorit AG |
|---|---|---|
| Free storage | 5Higher | 3 |
| Price per TB per year | $95.88 | €119.88 |
| Compliance certifications | ISO 27001, SOC 2 Type II | GDPR, HIPAA, NIS2, DORA, FINRA, CCPA, TISAX |
Pros and cons
Proton
Pros
- A single account covers a password manager, a VPN and end-to-end encrypted storage, with a free plan to start.
- Passkeys, custom domains and a Family plan with an admin panel suit single-user and shared use.
- Vaults use AES-GCM encryption with OpenPGP and ECC keys, and only the account holder can decrypt.
Cons
- Support runs on email, chat and help centre with no phone line.
- Free plan limits leave out the authenticator app, password sharing, attachments and dark web monitoring.
- Extra storage costs $95.88 per TB per year beyond 5 GB free.
Tresorit AG
Pros
- End-to-end encryption is on, so the provider cannot read stored files
- A free plan is offered and holds 3 for light use
- Compliance framing covers GDPR, HIPAA and NIS2 for regulated buyers
Cons
- Free storage of 3 sits below the 5 typical on the site, while MEGA gives 20 and Degoo 20
- Price per TB per year is €119.88 against a site median of €82.87
- Open source is no, so the client code is not published for outside inspection
Who each suits
Proton
Who it suits
- Readers who want a password manager, a VPN and private files under a single subscription rather than separate products.
- Households and small teams that need shared accounts, since the Family plan bundles several Pass Plus accounts and an admin panel.
- Buyers who care about open source under a copyleft licence, outside security audits and a public bug bounty.
Who should look elsewhere
- Apple Hide My Email at $0.99 if email aliasing is the whole job, since Proton adds a VPN, storage and a password manager.
- Apple Inc. at $0.99 when aliasing is the priority; Proton's $4.99 entry brings a VPN, storage and password manager in the same account.
- EasyOptOuts at $19.99 for a single higher priced subscription, against Proton's $4.99 entry and a free plan.
Tresorit AG
Who it suits
- Regulated teams that need GDPR, HIPAA and NIS2 compliance on file
- People who want client-side encryption and a provider that cannot read files
- Households happy with a small quota and a single vendor
Who should look elsewhere
- Bulk storage seekers, since MEGA gives 20 and Degoo 20 free against 3 here
- Buyers who require open source software they can inspect
- Apple Inc. shoppers weighing its 5 free allowance against 3 here
Current offers
Proton
Current offer
Discount code
40% off Pass Plus: 40% off
Shown on the Proton Pass pricing page alongside a 30-day money-back guarantee; applies to the Pass Plus paid plan
Source, checked September 26, 2026
Tresorit AG
Current offer
Free trial
14-day free trial of all paid SecureCloud plans: 14 days free
Payment information required at sign-up; subscription converts to paid automatically at trial end, cancellable during the trial
Source, checked September 26, 2026
Questions about each
Proton
How much is Proton Pass at the entry price?+
Proton Pass starts at $4.99, and there is a free plan beside it. The paid tiers widen the set of features, so the entry price only pays off if you want more hide my email aliases, passkeys and password health alerts.
What does the free plan leave out?+
The free plan covers as many logins, notes, cards and devices as you like, but it leaves out the authenticator app, sharing with other people, file attachments and dark web monitoring. Those sit on paid Pass plans, where entry starts at $4.99.
Tresorit AG
How much does Tresorit AG cost?+
The Personal plan starts at €4.99 and paid storage works out at €119.88 per TB per year. That per-terabyte figure sits above the €82.87 recorded across the site, so encryption is the trade for the higher cost.
Is there a free plan and what does it include?+
Yes, a free plan is offered, and it holds 3. Upload size, linked devices and the number of encrypted links you can share each month are all capped on that tier, so it works for documents rather than large media.
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