Alternatives to GhostMail for all platforms with any license

ProtonMail

Secure email with absolutely no compromises, brought to you by MIT and CERN scientists. Swiss Based ProtonMail is incorporated in Switzerland and our servers are...

Freemium $ $ $ Open Source Web Android iPhone iPad
End-to-End Encryption Privacy focused Security & Privacy Encrypted Email ... Encryption Custom domain Anonymous email E2e encryption PGP Encryption 4096 Bit encryption Anonymity Encrypted Connection Mobile friendly Multiple languages Support for Multiple Users Self destructing messages Add a feature

483 Like
Tutanota

Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps. The Android app is published on...

Free Personal $ $ $ Open Source Web Android iPhone iPad F-Droid
Encrypted Email Privacy focused End-to-End Encryption Night mode/Dark Theme ... Custom domain Encrypted Email Privacy Protected Anonymity Clean design Encrypted calendar Encrypted Connection Encryption Integrated File Sharing Multiple Account support Web-Based Add a feature

282 Like
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...

Free Open Source Mac Linux PortableApps.com Xfce OpenPGP
PGP Encryption Encrypted Email Encryption Add a feature

121 Like
Enigmail

Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey.

Free Open Source Mac Windows Linux GnuPG Thunderbird ... SeaMonkey
Encrypted Email Add a feature

68 Like
mailbox.org

mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world....

Commercial $ $ $ Web
Built-in Calendar Custom domain Encrypted Email Privacy focused ... Security & Privacy CalDAV CardDAV Contacts Ad-free Encrypted Email Gpg encryption Support for IMAP PGP Encryption Self destructing messages Supports XMPP Two factor authentication Add a feature

36 Like
Mailvelope

Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard. Mailvelope integrates directly into the Webmail...

Free Open Source Mac Windows Linux Chrome OS Microsoft Edge ... Chrome Firefox
Browser extension Google Chrome Extensions Encrypted Email Encryption ... Firefox Extensions Add a feature

33 Like
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...

Commercial $ $ $ Open Source Mac GnuPG
Encrypted Email Add a feature

9 Like
APG

Android Privacy Guard (APG) is a free and open source application for Android devices, created by Thialfihar, that lets you encrypt and decrypt single files or emails.

Free Open Source Android Android Tablet OpenPGP
Encrypted Email Encryption Add a feature

9 Like
Know any more alternatives to GhostMail?
Suggest an application to this list
GPGMail

GPGMail is a PGP plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the...

Commercial $ $ $ Mac GPGTools
Encrypted Email Encryption Add a feature

10 Like
SCRYPTmail

SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate within scryptmail domain. ...
- Discontinued
  Service closing, see https://blog.scryptmail.com/discontinuing-of-service/
Freemium Web
Anonymity Encrypted Email End-to-End Encryption Web-Based Add a feature

9 Like