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Alternatives · Email

FlowCrypt alternatives

As of Nov 13, 2026, the best FlowCrypt alternative for most people is Proton Mail (3.0 GPA), third in our ranking of email apps. It's also the best free one.

FlowCrypt compared with 5 alternatives: Proton Mail, Tuta Mail, Mailfence, Hushmail and StartMail.

FlowCrypt has a free plan. 3 of the 5 alternatives are free or have a free plan. 2 more offer a free trial.

Listings checked up to Nov 12, 2026 · Where the facts come from

Black Friday: is there a FlowCrypt sale?

At a glance

ToolPriceFree planRuns on
FlowCryptThis toolFree planYesiOS, Android, Browser extension
Proton MailFree plan · from $3.99/moYesWeb, macOS, Windows, Linux, iOS, Android
Tuta MailFree plan · from €3/moYesWeb, macOS, Windows, Linux, iOS, Android
MailfenceFree plan · from €2.50/moYesWeb, iOS, Android
HushmailFree trial · from $11.99/moTrial onlyWeb, iOS
StartMailFree trial · from $4.99/moTrial onlyWeb, Android

How each one differs from FlowCrypt

  1. Proton Mail

    End-to-end encrypted email service based in Switzerland

    • Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly.
    • Proton Mail also lists a web app and macOS, Windows and Linux apps.
    • Proton Mail lists no browser extension, which FlowCrypt has.
    • Proton Mail is open source, according to its own site.
    • Proton Mail also covers calendar.

    Suits: People who want an email provider that cannot read their messages

    Proton Mail vs FlowCryptProton Mail pricing and details

  2. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan).
    • Tuta Mail also lists a web app and Windows, macOS and Linux apps.
    • Tuta Mail lists no browser extension, which FlowCrypt has.
    • Tuta Mail is open source, according to its own site.
    • Tuta Mail also covers calendar.

    Suits: People who want mail, calendar and contacts encrypted by default

    Tuta Mail vs FlowCryptTuta Mail pricing and details

  3. Mailfence

    Private email from Belgium with built-in OpenPGP encryption

    • Mailfence starts at €2.50 per month, billed yearly (Base).
    • Mailfence also lists a web app.
    • Mailfence lists no browser extension, which FlowCrypt has.
    • Mailfence also covers calendar and documents.

    Suits: People who want OpenPGP encryption without installing a plug-in

    Mailfence vs FlowCryptMailfence pricing and details

  4. Hushmail

    Encrypted email and e-signable forms for healthcare practices

    • Hushmail starts at $11.99 per account / month.
    • Hushmail has no free plan, only a free trial, unlike FlowCrypt.
    • Hushmail also lists a web app.
    • Hushmail lists no Android app and browser extension, which FlowCrypt has.
    • Hushmail also covers templates and forms.

    Suits: Therapists and clinicians who must exchange protected client information

    Hushmail vs FlowCryptHushmail pricing and details

  5. StartMail

    Paid private email from the Netherlands with unlimited aliases

    • StartMail starts at $4.99 per month, billed annually ($59.88).
    • StartMail has no free plan, only a free trial, unlike FlowCrypt.
    • StartMail also lists a web app.
    • StartMail lists no iOS app and browser extension, which FlowCrypt has.
    • StartMail also covers inbox filtering.

    Suits: People who want a paid, ad-free mailbox hosted in the Netherlands

    StartMail vs FlowCryptStartMail pricing and details

Limits worth knowing in FlowCrypt

  • It works with Gmail only; an Outlook version is on a waitlist.
  • The free tier covers fewer than 100 users per domain and is described for companies below that size.
  • Workspace Key Manager is priced separately in euros: €799 a year for 10 seats and €899 for 20.
  • Using Google's client-side encryption needs a Workspace Enterprise Plus or Education Standard or Plus license.
FlowCrypt pricing and details

Common questions

What are the alternatives to FlowCrypt?

The alternatives to FlowCrypt in this directory are Proton Mail, Tuta Mail, Mailfence, Hushmail and StartMail. Each one has a side-by-side comparison with FlowCrypt.

Is there a free alternative to FlowCrypt?

Yes. Proton Mail, Tuta Mail and Mailfence have a free plan alongside paid ones.

Which FlowCrypt alternatives work on Windows?

The FlowCrypt listing does not include a Windows app. Proton Mail and Tuta Mail list one.

Which FlowCrypt alternatives work on macOS?

The FlowCrypt listing does not include a macOS app. Proton Mail and Tuta Mail list one.

Is there an open-source alternative to FlowCrypt?

Proton Mail and Tuta Mail are described as open source on their own sites.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Nov 12, 2026. Vendors change prices without notice, so confirm on their site before you buy.

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