Alternatives to APG for all platforms with any license

  • GnuPG icon

    GnuPG

    GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features...

    Open Source Mac Linux PortableApps.com Xfce

  • Enigmail icon

    Enigmail

    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the OpenPGP standard. Sending and receiving encrypted and digitally...

    Open Source Mac Windows Linux Thunderbird SeaMonkey

    No features added Add a feature
  • OpenKeychain icon

    OpenKeychain

    OpenKeychain helps you communicate more privately and securely. It uses high-quality modern encryption to ensure that your messages can be read only by the people you send them to, others can send you messages that only you can read...

    Open Source Android Android Tablet K-9 Mail

    No features added Add a feature
  • GPGMail icon

    GPGMail

    GPGMail is an open source plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard.

    Open Source Mac

    No features added Add a feature
  • GPG Suite icon

    GPG Suite

    GPG for Mail is an open source plugin for Apple Mail. Encrypt, decrypt, sign and verify mails using OpenPGP with a few simple clicks. GPG Keychain is an open source application for Mac OS X. It allows you to manage your OpenPGP...

    Open Source Mac

    No features added Add a feature
  • WebPG icon

    WebPG

    WebPG is a free, open source suite of tools to bring GnuPG/PGP (gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the common man. WebPG encompasses several projects, from the...

    Open Source Mac Windows Linux Chrome Thunderbird SeaMonkey ... Chromium Firefox

  • iGPMail icon

    iGPMail

    iPGMail is an app that implements the OpenPGP standard (RFC 4880, RFC 6637) and allows the user to create and manage both public and private (RSA, DSA, ECDSA) PGP keys and send and receive PGP encrypted messages.

    Commercial iPhone iPad

    No features added Add a feature
  • OneTime icon

    OneTime

    OneTime is an open source encryption program that uses the one-time pad algorithm to allow two parties to communicate privately. It has features to assist with the bureaucracy of pad management, and comes with built-in help. OneTime...

    Open Source Mac Windows Linux

  • oPenGP icon

    oPenGP

    oPenGP is a solution to support OpenPGP standard (RFC 4880) on your iOS device.

    Commercial iPhone iPad

    No features added Add a feature
  • Ciphermail for Android icon

    Ciphermail for Android

    CipherMail for Android is an Android application which can be used with your existing Android mail application to send and receive S/MIME digitally signed and encrypted email with an Android smartphone.

    Free Android

    No features added Add a feature

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