OpenPGP for Android. It's open source and its goal is to provide a similar OpenPGP implementation as GnuPG.NOTE: BACK UP YOUR SECRET KEYS! Preferably before updating. There were many database changes. If something goes wrong, then email me... the keys can be recovered in that case.A fork of APG called OpenKeychain added most of the new features, which have now been merged back into APG.APG development is active again and I'm mostly working on the implementation of PGP/MIME now.Changes:* Fix K-9 integration that was broken in 1.1.0* Merge OpenKeychain development back into APG* new drawer layout (touch top left icon)* KeyRing without private master key Import* QR key sharing* NFC key sharing* colorized fingerprints* K-9 support* bugfixes* manage secret/public keys (eg. GPG/PGP)* encrypt/sign/decrypt/verify emails and files* integration with K9* HKP Keyserver support* basic key creation and editing possible* Intent API for other appsPlease rate it and suggest features you want.Source code is GPLv3 and can be found here: https://github.com/thialfihar/apg

K-9 Mail is an open-source e-mail client with search, IMAP push email, multi-folder sync, flagging, filing, signatures, bcc-self, PGP, mail on SD & more! K-9 supports IMAP, POP3 and Exchange 2003/2007 (with WebDAV).K-9 is a community developed project. If you're interested in helping to make the best email client on Android even better, please join us! You can find our bugtracker, source code, mailing list and wiki at http://k9mail.googlecode.com.We're always happy to welcome new developers, designers, documenters, bug triagers and friends. If you're having trouble with K-9, please report a bug at http://k9mail.googlecode.com rather than just leaving a one-star review. We don't mind you telling the world that you're frustrated, but if you use our bug tracker, we have a better chance of fixing whatever's giving you a hard time.You can find K-9's release notes at: http://bit.ly/new-k9(People sometimes call K-9: K9, K9 Mail, K-9 Email, K9 Email, K9 E-Mail, k9mail or k9email.)