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FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted.

  • FreemiumOpen Source
  • Android
  • iPhone
  • Google Chrome
  • Brave
  • Firefox
  • OpenPGP
Avg rating of 3 (1)| 1 comments

FlowCrypt Screenshots

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FlowCrypt Features

  1.  GPG EncryptionFlowCrypt supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
  2.  PGP EncryptionFlowCrypt supports PGP, an encryption system used for sending encrypted emails and files.
  3.  End-to-End EncryptionFlowCrypt has E2E Encryption, for entire or parts of the app.

FlowCrypt information

  • Developed byTom James Holub
  • LicensingOpen Source and Freemium product.
  • PricingOne time purchase (perpetual license)
  • Alternatives21 alternatives listed

Supported Languages

  • English

Our users have written 1 comments and reviews about FlowCrypt, and it has gotten 17 likes

FlowCrypt was added to AlternativeTo by tjh on and this page was last updated .

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Brainless to set up, send and receive PRIVATE mails! I love it!

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Said about FlowCrypt as an alternative


Easy to integrate on any system

Positive comment ago
as an alternative to  


  • Firefox Extension
  • Google Chrome Extension
  • Encryption

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Communication •  Communication

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