ComplyCube
Autocrypt
GnuPG
GPG Suite
CrococryptFile
Chatlink.com
Delta Chat
File Encryption XP
S.S.E. File Encryptor
Ciphermail for Android
Kleopatra
Enigmail
OpenKeychain
PGP Tool
GnuPG
YAATA
Cellcrypt
Autocrypt Ciphermail for AndroidBased on our record, Autocrypt seems to be more popular. It has been mentiond 13 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Also, isn't downloading and using DeltaChat would be easier? It used autocrypt protocol out of the box as well bunch of useful features and feels more like comfortable messenger than email. Source: 12 months ago
You should look into the autocrypt standard and apps that can use it. Https://autocrypt.org/ Https://en.wikipedia.org/wiki/Autocrypt. Source: over 1 year ago
They can also use new headers then parse those, that is what Autocrypt does, See https://autocrypt.org/ . The email specification allows custom headers for extension. Source: over 1 year ago
Requirement 1: It should be backwards compatible with existing email systems. As examples, consider Delta Chat and the Autocrypt specification it's built on. https://delta.chat/en/ https://autocrypt.org/. - Source: Hacker News / about 2 years ago
That's why I said https://delta.chat/en/ ;) An email-based messenger with https://autocrypt.org/. Source: over 2 years ago
GnuPG - GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).
Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.
GPG Suite - Use GPG Suite to encrypt, decrypt, sign and verify files or messages.
Enigmail - Security extension to Mozilla Thunderbird and SeaMonkey
CrococryptFile - Strong file encryption tool
OpenKeychain - OpenKeychain helps you communicate more privately and securely.