Superhuman is the most admired product in email, and it earns the admiration: a rebuilt, keyboard-driven client that makes fast people faster. It is also a different kind of decision than installing an extension. You move into Superhuman; QuillReply moves into your Gmail.
Superhuman is a full email client, now part of Grammarly. To deliver its speed and AI features, your mail flows through its systems, and the product replaces the Gmail interface entirely, keyboard shortcuts and all. It costs $25 to $30 per user per month for the entry plan.
QuillReply asks for none of that commitment. Gmail stays exactly as you know it; three buttons appear where your eyes already are. It requests no Gmail permission, reads only the email on your screen when you click, checks for replies inside your browser, and drafts responses in a voice learned from emails you chose. Free during the beta.
| QuillReply | Superhuman | |
|---|---|---|
| What it is | An extension inside the Gmail you already use | A replacement email client you switch to and learn |
| Access to your mail | None; reads only the open email when you click | Full mailbox, processed through their systems by design |
| Learning curve | None; it is still Gmail | A new interface and keyboard language (that is the point) |
| Follow-up reminders | Yes, including only-if-no-reply, checked in your browser; out-of-office does not count | Yes, built into the client |
| AI drafting | Full replies in a voice learned from your own emails; corrections stick | AI writing and triage built in |
| Email into a task | Apple Reminders, Google Tasks, Obsidian, Things 3, with suggested titles and dates | Reminders and snoozes live inside the client |
| Speed features (split inbox, snippets, scheduled send) | No; Gmail's own features remain yours | Yes, the core of the product |
| Price | Free during beta; simple pricing at launch | $25 per user per month billed annually, $30 month to month (Starter) |
If email is hours of your day and you want the whole experience rebuilt for speed, Superhuman is the best version of that idea: the triage flow, the split inbox, the keyboard-first design, the polish. QuillReply does not compete with any of it, because QuillReply is not a client. People who love Superhuman love the switch itself; if that is you, make it.
QuillReply is in beta ahead of its Chrome Web Store launch.
See how QuillReply worksComparison reflects publicly available information as of August 2026, including Superhuman's published help-center pricing; features and prices change, so confirm details on their site. Superhuman is a trademark of its owner (part of Grammarly since 2025). Gmail™ is a trademark of Google LLC. QuillReply is not affiliated with any of them. Corrections welcome: hello@quillreply.com.