Compare ReplyPen
How ReplyPen compares with the AI already built into Gmail and Outlook and with other AI email tools. Each page says where the other product is the better pick, links every claim about it to that product's own pages, and shows the date we last checked.
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Built into your mail app
The AI that comes with Gmail and Outlook.
AI drafts for your own inbox
Tools that sort or draft replies for one person's mailbox.
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Fyxer
AI inbox sorting, email drafts and meeting notes
Sorts one person's inbox and drafts replies. No shared inboxes like support@.
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Ellie
AI email drafts in Gmail and Outlook
Background drafts in Gmail and Outlook, per team, with daily reply limits.
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Superhuman
Email app with AI drafts
A fast email app with Auto Drafts on its Business plan, priced per member.
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Helpdesks and helpdesk AI
For support teams that work in Zendesk, Intercom or a shared-inbox helpdesk.
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Fin
AI customer service in a helpdesk
Formerly Intercom. Answers customers on its own inside a helpdesk, per outcome.
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eesel
AI for helpdesks
AI inside your helpdesk, in monthly credit bundles from $299.
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Hiver
Helpdesk for shared inboxes
A helpdesk for shared inboxes, inside Gmail or as a web app, priced per user.
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Macha
AI on top of a helpdesk
AI on top of Zendesk and other helpdesks, from $299 a month.
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Alternatives roundups
Several options side by side, with prices. ReplyPen is on each list and says so.
Every claim about another product links to that product's own pages, checked most recently on 30 September 2026. Something out of date? Tell us and we correct it.