Instead of FlowCrypt
FlowCrypt alternatives
FlowCrypt sends encrypted messages to OpenPGP users and password-protected messages to other recipients, who can reply securely without installing a plugin. It offers Gmail and Outlook integration, expiring messages, and enterprise controls for domain settings, security rules, authentication, and system integrations. A free plan is available; free attachments can be up to 25 MB. Enterprise supports domains with more than 100 users, but commercial pricing requires contacting FlowCrypt. Its supported platforms include a Chrome extension, other platforms, and a mobile application.
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Lockbin
Free plan LinuxMacWeb+1Larger attachments and desktop or web access — Lockbin supports attachments up to 100 MB and Linux, macOS, Windows, and web, while FlowCrypt’s free attachments reach 25 MB.
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SecureMyEmail
by SecureMyEmailFree plan AndroidiPhoneMac+2Encrypting existing accounts across email providers — SecureMyEmail works with existing IMAP accounts and built-in setup for several providers, while FlowCrypt focuses on OpenPGP or password-protected messages.
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Send It Secure
Free plan APIExtensioniPhone+2Portal delivery and identity verification — Send It Secure delivers through a portal and verifies recipient identity; FlowCrypt uses links and password verification.
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Secure Message
Free plan LinuxSelf-hostedWebSelf-hosted inbound email filtering and outbound rules — Secure Message is a self-hosted inbound gateway with filtering and outbound controls; FlowCrypt encrypts messages through email integrations.
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Mimecast Secure Messaging
by Mimecast Secure MessagingPaid AndroidiPhoneMac+2Organizations protecting sensitive email information — Mimecast Secure Messaging focuses on organizations protecting sensitive email and offers portal delivery; FlowCrypt also describes password-protected messages for individuals.
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Gpg4win
Free plan Windows - 12
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Cisco Catalyst Center
Paid APILinuxMac+3 - 16
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Symantec PGP Gateway Email Encryption
Paid LinuxSelf-hostedWeb+1 - 23
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Alternatives may suit you better if you need a larger attachment limit, a desktop or self-hosted setup, portal delivery, identity checks, or compatibility with more email providers. Compare each product’s delivery method and recipient verification with FlowCrypt’s links and password checks, and consider whether expiry, mail integrations, and admin controls match your needs. Pricing also matters: some alternatives are free, while others have paid plans or require a pricing request. Choose based on the workflow and platform you need, not encryption alone.
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