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Airmail vs Polymail: catalog facts
Airmail	Polymail
Freemium Available on the App Store; see the store listing for current pricing and subscription…	Paid Paid plans with a free trial.
macOS, iOS	macOS, iOS
Supports Gmail, Exchange, iCloud, IMAP, POP3 and more Unified and smart inboxes with snooze	Read tracking and follow-up reminders inside email Several inboxes in one place
Apple platforms only Pricing details are not stated on the homepage	Requires a paid subscription after the trial Read tracking may not suit privacy-minded recipients
Downloadable app	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account 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 October 2, 2026

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