Proton Mail vs Tuta

Proton Mail and Tuta are both strong private email services, but there is no single winner. Tuta is cheaper and suits people who mainly want email, while Proton makes more sense if you want a wider privacy suite containing a VPN, password manager, cloud storage and other tools.

This is the summary, and the sections below explain the differences that a table cannot show fairly.

The short version

I personally prefer Proton Mail, mainly because of its interface and the wider Proton ecosystem. I have an active Proton Unlimited subscription and use more than the email service. Proton Unlimited also gives me Proton VPN, Proton Pass, Proton Drive, Proton Calendar and other tools under the same account. Because I use several of those products, the higher cost makes sense for me.

That does not make Proton the correct choice for everyone. Tuta is an excellent private email provider, and its paid plans cost less than Proton’s comparable options. If you mainly want an encrypted inbox, calendar and support for your own domain, Tuta may be the more sensible choice. You are not paying extra for a VPN, password manager or broader suite that you may never use.

Both providers offer free accounts. Trying both before paying is a practical way to find out which interface and approach suit you better.

Proton Mail pros and cons

Pros

• Wider ecosystem containing email, a VPN, password manager and cloud storage
• OpenPGP support for encrypted email outside Proton
• Works with Outlook, Thunderbird and Apple Mail through paid Bridge access
• Unlimited hide-my-email aliases with Proton Unlimited

Cons

• Comparable paid plans cost more than Tuta’s
• Proton Mail Plus includes less storage and fewer custom domains than Tuta Revolutionary
• Subject lines are not end-to-end encrypted
• Third-party email programs require a paid plan and Proton Mail Bridge

Tuta pros and cons

Pros

• Lower-cost paid plans for someone who mainly wants email
• More storage and custom domains on the entry paid plan
• End-to-end encryption for subject lines
• Unlimited addresses on domains you own with a paid plan

Cons

• No IMAP, POP3 or SMTP support
• Cannot be used through Outlook, Thunderbird or Apple Mail
• Does not support traditional OpenPGP interoperability
• Smaller ecosystem, with Drive and migration tools still in closed beta

Pricing and plans

Both Proton and Tuta offer free and paid plans. Both charge less when you pay yearly instead of monthly. Tuta’s comparable paid plans cost less than Proton’s, although the amount varies by currency and region. Check the current price shown on each provider’s own website rather than relying on a price quoted in a comparison that may use another currency or an expired offer.

Tuta may also display a headline saving on its pricing page. Check the payment screen carefully to see whether the displayed amount is its continuing yearly price or an introductory price that changes later.

Tuta’s plans cost less than Proton’s comparable plans, but the amount depends on your currency, so check the current price on each provider’s own site.

The free plans

Proton Free provides one email address and a small amount of mail storage, which can be increased by completing several account setup steps. It does not support a custom domain. Tuta Free includes 1 GB of storage and one calendar. It does not include additional addresses or support for a custom domain.

Neither free plan gives you everything included with a paid account, but both are useful for testing the interface, mobile apps and general email experience.

The paid entry plans

Proton Mail Plus includes 15 GB shared between Proton Mail and Proton Drive. It supports up to ten email addresses, one custom domain and ten hide-my-email aliases. It also provides access to Proton Mail Bridge, which lets Proton work with supported third-party email programs. Tuta Revolutionary includes 20 GB, 15 additional Tuta addresses, three custom domains and unlimited calendars and labels.

For email alone, Tuta gives you more storage, more custom domains and more provider-branded addresses while costing less. That makes it the stronger entry-level value for someone who mainly wants an inbox and calendar. Proton Mail Plus becomes more attractive if you prefer Proton’s interface, want hide-my-email aliases or need to use Outlook, Thunderbird or Apple Mail.

The larger plans

Tuta Legend provides 500 GB, 30 additional Tuta addresses and ten custom domains. It remains focused on email and calendar. Proton Unlimited also provides 500 GB, but that storage is shared between Proton Mail and Proton Drive. It includes up to 15 email addresses, three custom domains and unlimited hide-my-email aliases.

The important difference is that Proton Unlimited is not simply a larger email plan. It includes the paid tiers of Proton Mail, Calendar, Drive, Pass, VPN and Wallet. It includes the free tiers of Lumo and Proton Meet, rather than their highest paid versions.

Tuta Legend makes more sense when you want a larger private email account without buying a wider collection of tools. Proton Unlimited makes more sense when you will genuinely use several parts of the Proton suite.

Better for cost-conscious email-only users: Tuta, because its comparable plans cost less and provide more entry-level email storage and custom domains.

Encryption and privacy, in plain terms

Both services protect messages exchanged within their own systems. A message sent from one Proton user to another is automatically end-to-end encrypted. The same is true when one Tuta user sends a message to another Tuta user. End-to-end encryption means the message is encrypted before it leaves the sender’s device and can only be decrypted by the intended recipient.

This protection does not automatically extend to every external message. If you send an ordinary email from Proton or Tuta to someone using Gmail, Outlook or another outside provider, it is not automatically end-to-end encrypted. The recipient’s provider must still be able to process and store its copy.

Both services offer password-protected messages for communicating securely with people outside their systems. The recipient follows a secure link and uses a shared password to open the message.

Proton supports OpenPGP

Proton supports OpenPGP, an established standard for exchanging encrypted email between compatible services and applications. This gives Proton greater interoperability. A Proton user can exchange encrypted email with someone using another PGP-compatible setup rather than requiring that person to use Proton.

Tuta does not use traditional OpenPGP. It uses its own encryption system instead. That choice allows Tuta to encrypt more information inside its own service, but it means Tuta does not connect to the wider PGP email system in the same way Proton does.

Tuta encrypts subject lines end to end

Tuta end-to-end encrypts the subject line and the displayed names of the sender and recipient. Proton does not end-to-end encrypt subject lines. It encrypts them while they are stored, which is called encryption at rest, but Proton can technically process that information before it is placed into encrypted storage. This is a genuine privacy advantage for Tuta because a subject line can reveal sensitive information even when the message body remains protected.

It does not establish that Tuta is safer in every possible respect. Proton’s support for OpenPGP, account-monitoring tools and wider compatibility provide different advantages.

Both support private search

Both providers allow users to search encrypted email without handing a readable mailbox to the provider’s server. The search index is created and used on the user’s own device. Proton’s browser-based index can be affected by the amount of local storage available, but it is incorrect to claim that Proton must decrypt messages on its servers to search them.

Both now support post-quantum encryption

Post-quantum encryption is designed to protect data against possible future quantum computers that could defeat some encryption methods used today. Tuta introduced its TutaCrypt system first, in March 2024. Proton added post-quantum email protection on 5 May 2026.

Both providers therefore support post-quantum protection. Comparisons that claim only Tuta has it are now outdated. Neither provider should be described as having completed perfect forward secrecy for all email. Tuta describes further work in this area as a future aim.

Better for encryption coverage: Tuta encrypts subject lines end to end. Better for OpenPGP interoperability: Proton.

If you are worried about law enforcement

Neither Proton nor Tuta makes its users anonymous. Both remain subject to the laws that apply where they are based and can be required to respond to valid legal orders. Proton is based in Switzerland, which sits outside the European Union and is not part of the group of intelligence-sharing countries often called the 14 Eyes. Tuta is based in Germany, which is inside the European Union, subject to the General Data Protection Regulation, usually called GDPR, and is counted among the 14 Eyes countries.

It is tempting to read that as a straightforward win for Switzerland, and many comparisons do. It is not that simple. A country sitting outside the 14 Eyes still operates its own intelligence services and can still share information with other countries, so being outside the group is not a guarantee of anything on its own. A country inside the group is still bound by its own privacy laws, which in Germany’s case are among the strictest anywhere.

So these labels are useful context rather than a verdict. An intelligence-sharing arrangement can only pass on information a provider actually holds. The practical question is what each company keeps, and what its encryption places beyond its own reach. A provider that encrypts more of your data has less to disclose, wherever it happens to be based.

Both Proton and Tuta can be required to disclose information they already hold. In some circumstances, they can also be ordered to begin collecting limited information about a particular account. Encryption prevents them from handing over readable copies of properly encrypted stored messages. It does not hide every record connected to an account, such as payment information, an optional recovery address or some email metadata.

Apps, and moving your email

Both providers offer web, Android, iOS, Windows and macOS applications. Tuta also offers a Linux desktop application. Proton’s Linux desktop application is currently in beta, which means it is still being tested and may not be as settled as the Windows and macOS versions. The most important practical difference is support for other email programs.

Paid Proton users can use Proton Mail Bridge to connect their accounts to supported programs such as Outlook, Thunderbird and Apple Mail. Bridge handles the encryption locally while allowing the desktop program to communicate with Proton using standard email methods. Tuta does not provide IMAP, POP3 or SMTP access. These are standard methods used by email programs to receive and send messages.

Tuta made this choice as part of its encryption design. The result is that Tuta users must use Tuta’s own web, desktop or mobile applications. That may not matter if you are happy with the official Tuta apps. It can be decisive if you already organise several accounts inside Outlook, Thunderbird or Apple Mail.

Proton also has established tools for importing email from another provider. Tuta has recently moved a one-click migration tool into closed beta. Closed beta means it is being tested with a limited group and should not yet be treated as a generally available finished feature.

Tuta Drive has also recently entered closed beta. It is an indication that Tuta is expanding beyond email and calendar, but it is not yet a direct, generally available alternative to Proton Drive.

Better for third-party email apps and moving an established setup: Proton, particularly for Outlook, Thunderbird and Apple Mail users.

Aliases and custom domains

Both providers let paid users create additional addresses, but they approach aliases differently.

Tuta and custom-domain addresses

Tuta Revolutionary includes 15 additional Tuta-branded addresses, while Tuta Legend includes 30. Those limits apply to addresses using Tuta’s own domains. Paid Tuta plans also support an unlimited number of addresses on domains that you own. A custom domain is your own domain name used for email, such as name@example.com instead of an address ending in the provider’s domain.

This makes Tuta particularly generous for someone running several addresses on a personal or family domain. It would be misleading to say only that Tuta offers unlimited aliases. The unlimited allowance applies to addresses created on the user’s own domains, while Tuta-branded addresses remain limited by plan.

Proton and hide-my-email aliases

Proton Mail Plus includes ten hide-my-email aliases. Proton Unlimited includes an unlimited number. A hide-my-email alias is a generated forwarding address that conceals your real mailbox address. You can use a different alias for an online shop, newsletter or account and disable it later if it begins receiving unwanted messages.

These are different from having many normal addresses on your own domain. Tuta is more generous when you want numerous addresses attached to domains you own. Proton Unlimited is stronger when you want disposable masking aliases that keep your main address hidden.

Better for addresses on your own domain: Tuta. Better for disposable masking aliases: Proton.

The Proton ecosystem, and when it is worth it

The Proton ecosystem is the main reason I personally choose Proton. I pay for Proton Unlimited and use more than Proton Mail. The plan also gives me Proton VPN, Proton Pass, Proton Drive, Proton Calendar and other services under the same account.

Proton VPN provides a virtual private network, which encrypts the connection between your device and the VPN service. Proton Pass is a password manager, which stores and generates passwords in an encrypted vault. Proton Drive provides encrypted cloud storage.

The two I use every day are Proton Pass and Proton VPN. Having my password manager and VPN under the same subscription as my email is a more important reason for my preference than a general claim that Proton simply looks better. I like having these tools connected through one subscription. That makes the extra cost worthwhile for me.

It will not be worthwhile for everyone. Someone who already has a preferred VPN and password manager may gain little from Proton Unlimited. Someone who needs only email could pay more for a large suite and then leave most of it unused.

In that situation, Tuta Revolutionary may be the better fit. It provides more email storage and more custom domains than Proton Mail Plus while costing less.

Tuta also supports two-factor authentication using authenticator apps and security keys. Two-factor authentication requires a second verification method as well as the password. It offers session monitoring with encrypted session information.

Proton supports the same essential two-factor authentication methods and adds more optional monitoring tools. Proton Unlimited includes Proton Sentinel and dark-web monitoring, while Proton also provides a free account monitor. These additions give Proton more account-monitoring features. They do not prove that Proton is universally safer than Tuta.

Both providers also publish the source code for their client applications. Neither claims that its complete server-side system is open source, so the comparison should not be reduced to “Tuta is open source and Proton is not”. That would be incorrect.

Better for a wider privacy ecosystem: Proton, provided you will use more than email.

Comparison scorecard

• Pricing: Better for cost-conscious email-only users: Tuta.
• Encryption: Better for subject-line encryption: Tuta. Better for OpenPGP interoperability: Proton.
• Apps and moving email: Better for third-party email apps and an established desktop setup: Proton.
• Aliases and domains: Better for addresses on your own domain: Tuta. Better for disposable masking aliases: Proton.
• Ecosystem: Better for a wider privacy ecosystem: Proton, provided you will use more than email.

So which should you choose?

Choose Tuta when you mainly want affordable private email. It provides more storage and more custom domains on its entry paid plan, and its paid subscriptions cost less than Proton’s comparable plans. It also end-to-end encrypts subject lines and is generous with addresses created on your own domains. The main compromises are that you must use Tuta’s own applications and that it does not support traditional OpenPGP interoperability.

Choose Proton when you want private email as part of a wider privacy suite. Proton is the stronger fit if you want to keep using Outlook, Thunderbird or Apple Mail, need OpenPGP compatibility, want disposable hide-my-email aliases or intend to use Proton’s VPN, password manager and cloud storage. I prefer Proton because I use enough of the Proton Unlimited bundle to justify its higher cost, and because Proton Pass and Proton VPN fit how I use it day to day. That is a personal preference based on how I use the service, not a universal answer.

Both providers offer free accounts. Trying each one before paying lets you compare the interfaces, apps and everyday email experience for yourself. The better choice is the one that matches the services you will actually use.