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Spike vs Edison Mail: catalog facts
Spike	Edison Mail
Freemium Free for individuals; paid plans add AI and team features.	Free Offered as a download; the homepage does not list prices.
Windows, macOS, Android, iOS	macOS, Android, iOS
Chat-style layout can make long threads easier to follow AI features aim to help with organizing and responding faster	Unified inbox across several email accounts Available on phones and the Mac
Chat-style format is a matter of preference and not for everyone Advanced AI and team features require a paid plan	No Windows or Linux version Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is 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 22, 2026	Official website Full listing and sources Checked September 23, 2026

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