ElectronMail is described as 'Electron-based unofficial desktop client for ProtonMail and Tutanota end-to-end encrypted email providers. The app aims to provide enhanced desktop user experience enabling features that are not supported by the official in-browser web clients' and is a Email Client in the office & productivity category. There are more than 10 alternatives to ElectronMail for a variety of platforms, including Mac, Linux, Windows, Chocolatey and Flathub apps. The best ElectronMail alternative is Thunderbird, which is both free and Open Source. Other great apps like ElectronMail are Betterbird, Pelton, Enigmail and Proton Mail Bridge.
Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.
Betterbird, a soft fork of Mozilla Thunderbird, improves user experience with advanced features, bug fixes, security patches, and multi-row descriptions similar to Outlook. Compatible with multiple platforms and can be used alongside Thunderbird, sharing the same profile.
Free, open-source client for Windows, macOS, and Linux, offering local email storage and search online or offline, privacy-focused with no telemetry or third-party servers, IMAP and SMTP support, intuitive interface, and multiple account support.
Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .
App to sync encrypted emails from Proton Mail with desktop email clients such as Mozilla Thunderbird, Apple Mail, and Microsoft Outlook.
GPGMail is a PGP plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard.
Desktop app for Gmail, available on macOS, Linux & Windows.
Unofficial ProtonMail extension. Provides notifications and makes it possible to close the ProtonMail tab, and even the browser, without getting logged out.
Vireo is a clean, fast, GNOME-native email client with a calm three-pane layout, unified inbox, and support for OAuth accounts. Fast to open, effortless to read, and private by default.
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It is not a mail app it is a backend for ProtonMail PAID users to sync with true mail client app.