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Best gpg4o Alternatives in 2026

12 apps from email encryption software ranked against gpg4o on the same published basis.

  1. 1
    Lockbin Free plan LinuxMacWebWin $10/mo7.3
    gpg4o vs Lockbin
  2. 2
    DataMotion Secure Email Exchange Free trial AndroidapiiOSWeb 7.1
    gpg4o vs DataMotion Secure Email Exchange
  3. 3
    Encryptomatic OpenPGP Win $2.50/mo6.9
    gpg4o vs Encryptomatic OpenPGP
  4. 5
    Mailvelope Free trial extensionWeb €3/mo6.9
    gpg4o vs Mailvelope
  5. 6
    FlowCrypt Free plan extension Free6.8
    gpg4o vs FlowCrypt
  6. 7
    Gpg4win Win 6.8
    gpg4o vs Gpg4win
  7. 8
    PDF Postman Win $79.99/mo6.8
    gpg4o vs PDF Postman
  8. 9
    SecureMyEmail Free plan WinMaciOSAndroid Free6.8
    gpg4o vs SecureMyEmail
  9. 10
    c.Email Free plan extension Free6.7
    gpg4o vs c.Email
  10. 11
    Proofpoint Email DLP and Encryption AndroidiOSWebWin 6.6
    gpg4o vs Proofpoint Email DLP and Encryption
  11. 12
    Secure Message WebLinux 6.6
    gpg4o vs Secure Message
  12. 13
    Send It Secure 6.6
    gpg4o vs Send It Secure
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