PissMail AlternativesOnly apps categorised as Calendar Apps

The best Calendar alternative to PissMail is Proton Mail, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to PissMail and 12 are Calendar Apps so hopefully you can find a suitable replacement. Other interesting Calendar App alternatives to PissMail are Tuta Mail, mailbox, Posteo and Fastmail.

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PissMail alternatives are mainly Calendar Apps, but if you're looking for WebMail Providers or Email Clients you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to PissMail.
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Alternatives list

  1. Mailfence icon
    Sponsored

    This secure email platform offers end-to-end encryption, a comprehensive suite with Calendar and Documents. Mailfence is inter-operable with OpenPGP services, features digital signatures, provides keystores, and available as a PWA for mobile independence while ensuring no ads, trackers, or surveillance.

    72 Mailfence alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
  2. Proton Mail icon
     1066 likes

    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.

    98 Proton Mail alternatives

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Tor
    • Flathub
    • Snapcraft
     
  3. Tuta Mail icon
     549 likes

    Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.

    104 Tuta Mail alternatives

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Flathub
    • F-Droid
    • Android Tablet
    • Thunderbird
     
  4. Posteo icon
     88 likes

    Web- and IMAP-based email service. 4GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.

    77 Posteo alternatives

    Cost / License

    • Paid
    • Open Source

    Platforms

    • Online
     
  5. Fastmail icon
     78 likes

    Fastmail offers secure email hosting with comprehensive webmail services, including IMAP, POP, and SMTP protocols. It supports file sharing, shared folders, large mailboxes, instant messaging, and is compatible with popular email programs. Excellent for businesses with compliance features.

    74 Fastmail alternatives

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • Flatpak
     
  6. Mailfence icon
     65 likes

    This secure email platform offers end-to-end encryption, a comprehensive suite with Calendar and Documents. Mailfence is inter-operable with OpenPGP services, features digital signatures, provides keystores, and available as a PWA for mobile independence while ensuring no ads, trackers, or surveillance.

    72 Mailfence alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  7. Vivaldi Mail icon
     34 likes

    Vivaldi Mail is a free email service with no ads and no strings attached developed by Vivaldi Technologies. It also offers contacts and calendar features, search capabilities, folders management, WEB/POP/IMAP access, 10GB of storage capacity, 20 MB of maximum attachment size...

    101 Vivaldi Mail alternatives

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • Vivaldi
     
  8. GMX icon
     78 likes

    GMX Mail is a German-based free webmail service provided by GMX (Global Mail Exchange). In addition to an e-mail address, each GMX account includes a Mail Collector, Address Book, Organizer, and File Storage.

    64 GMX alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  9. Horde icon
     30 likes

    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.

    41 Horde alternatives

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
     
  10. VFEmail icon
     6 likes

    Free email with privacy and security.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Online
     
12 of 12 PissMail alternatives