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Shortwave vs Edison Mail: catalog facts
Shortwave	Edison Mail
Freemium Free to start with no credit card required, with paid options for more features.	Free Offered as a download; the homepage does not list prices.
Windows, macOS, Android, iOS	macOS, Android, iOS
AI filters written in plain English Drafts replies that match your writing style	Unified inbox across several email accounts Available on phones and the Mac
Built for Gmail accounts Relies on a hosted AI service that processes your mail	No Windows or Linux version Closed source
Downloadable app, Hosted service	Downloadable app
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.