Encrypted email and calendar apps

Members by activity

Activity signals, not revenue.

1. 01hashgram_windows0★17 daysliveDesktop app that combines encrypted email, file storage, social feed, messaging, spaces, wallet, and network features in a peer-to-peer private communications suite.
2. 02Yandex Mail0★22 dayslivecommercialEmail service app offering secure mailbox management, spam filtering, and integrated calendar, documents, and notes for work and personal use.
3. 03whisper-post0★6 days—Web app that lets users schedule and send anonymous email messages to recipients, with encryption and opt-out.
4. 04Zoho Mail - Email and Calendar0★11 dayslivecommercialEmail and calendar app with offline access and secure communication for business users.
5. 05Aster Mail: Encrypted Email0★1 moliveopen sourcePrivate email app that encrypts messages end-to-end and offers aliases, custom domains, and standard mailbox features.
6. 06Proton Mail0★1 molivehand-codedopen sourceEncrypted email app that lets users send and receive private messages and attachments and manage inboxes with folders, labels, and multiple accounts.
7. 07pcontacts0★10 daysliveopen sourceAndroid app that syncs Proton Mail contacts to the system address book with client-side decryption for private access.
8. 08proton-mail-bin0★1 moliveopen sourceDesktop application that provides encrypted email and calendar access for a privacy-focused email service.
9. 09eclipso Mail Europe0★2 molivecommercialPrivacy-focused email app that combines mailbox, calendar, and cloud storage with real-time server-side data handling and ad-free plans.
10. 10proton-mail0★1 moliveopen sourceDesktop application that provides encrypted email and calendar access for a privacy-focused email service.
11. 11Bmail — Encrypted Email0★2 molivecommercialEncrypted email service with calendar, contacts, and drive, supporting PGP and custom domains for privacy-focused communication.
12. 12Foxcolab Mail0★2 moliveEmail app that provides end-to-end encrypted communication and manages multiple accounts from one inbox.
13. 13Proton Mail Bridge0★1 moliveopen sourceBackground application that encrypts and decrypts a paid hosted email account's messages locally, allowing use with standard email clients over IMAP and SMTP.
14. 14Soliton MailZen0★4 moliveenterpriseSecure enterprise email and calendar app that keeps corporate data in an encrypted container and separates business from personal information.
15. 15Proton Mail0★unknownlivecommercialEncrypted email and calendar desktop application that lets users manage multiple accounts, organize messages, and send password-protected emails privately.
16. 16Encrypted Email - Mailfence0★4 moliveEncrypted email service providing secure messaging, cloud storage, calendar, and contacts with OpenPGP support.
17. 17Virtru Email Protection0★5 molivecommercialEmail encryption app that lets users protect messages and attachments with end-to-end encryption, expiration dates, and remote revocation.
18. 18Voltage Mail0★1 yrabandonedlivecommercialMobile app that reads and writes encrypted emails for organizations using Voltage SecureMail, supporting integration with desktop and cloud email systems.
19. 19GoldKey Mail0★8 yrabandonedlivehand-codedcommercialGoldKey Mail is a secure, cloud-based email service with a secure calendar, spam protection, and group sharing, requiring a subscription.

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