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Polymail vs Yesware: catalog facts
Polymail	Yesware
Paid Paid plans with a free trial.	Paid Paid plans with a 14-day free trial and no credit card required.
macOS, iOS	Windows, macOS, Web, Browser extension
Read tracking and follow-up reminders inside email Several inboxes in one place	Works inside both Gmail and Outlook Real-time open, click and download alerts
Requires a paid subscription after the trial Read tracking may not suit privacy-minded recipients	Paid after the trial Focused on sales teams rather than personal email
Downloadable app, Hosted service	Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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