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Airmail vs Spark Mail: catalog facts
Airmail	Spark Mail
Freemium Available on the App Store; see the store listing for current pricing and subscription…	Freemium Free for individuals; paid plans add AI features and team tools.
macOS, iOS	Windows, macOS, Android, iOS
Supports Gmail, Exchange, iCloud, IMAP, POP3 and more Unified and smart inboxes with snooze	Automatic inbox categorization cuts down on manual sorting AI-drafted replies can speed up routine email responses
Apple platforms only Pricing details are not stated on the homepage	AI and team features are gated behind a paid plan Some categorization requires manual correction over time
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 23, 2026	Official website Full listing and sources Checked September 22, 2026

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