Cost / License
- Free
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
- Self-Hosted
- Nextcloud
Apps similar to Shortwave include Thunderbird, which is free and open source. Other options are K-9 Mail, Betterbird, Microsoft Outlook and FairEmail. Email Clients like Shortwave are a crowded field, with more than 25 alternatives for Windows, Mac, iPhone, iPad and the web.
Shift consolidates web applications into one platform, simplifying access to Google and Microsoft accounts. It declutters tabs, supports email management for Gmail and Outlook 365, integrates with extensions like Grammarly, LastPass, and more, while providing custom notifications and quiet hours.








Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.




Dedicated Gmail client with clean integration of Google Calendar, Contacts, Google Drive, and Google Docs, Sheets, and Slides.




Download MailMag and aggregate all your emails under one smart application! – Do amazing things with your emails!




Generates individualized email replies in your writing style from imported messages without inbox access, supports screenshots, briefs, translation in 60+ languages, encrypted storage, business terms panel, tone controls, templates, spell check, and more.


Emilio is an AI-powered email manager that automates tasks to save users time. The key functionalities include sorting prioritized emails, summarizing messages and drafting emails with the user's tone.



ForthWrite is an AI email writing assistant that learns your writing style from your real sent mail and uses it to generate drafts that sound like you wrote them.




MailCode is a desktop mail client for people whose mailbox stopped being an inbox years ago and became an archive. It keeps every message on your own machine, indexes all of it, and answers a search.




Mejl is a Gmail client built to make email easier to read. It clears the clutter, groups mail into focused views, and helps you bring unread back to zero, one view at a time. See less, read more.


