Shortwave vs Superhuman Mail
A side-by-side comparison of Shortwave and Superhuman Mail, two Productivity tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
Superhuman Mail
ProductivityKeyboard-first AI email client for Gmail and Outlook, built for inbox zero.
View Superhuman MailAt a glance
| Attribute | Shortwave | Superhuman Mail |
|---|---|---|
| Category | Productivity | Productivity |
| Pricing | PAID | PAID |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms | Web, macOS, Windows, iOS, Android | Web, macOS, Windows, iOS, Android |
| Model support (differs) | Multi-model | — |
| Vendor (differs) | Shortwave | Superhuman |
The honest brief
Shortwave
An AI layer over Gmail — natural-language email search, thread summaries, and a voice-matching Ghostwriter in one client.
- AI summaries + Ghostwriter drafting
- Inbox bundling / split inbox
- Web, desktop, and mobile apps
- Fast keyboard-driven UI
- Gmail / Google Workspace only
- No Outlook or Microsoft 365
- No permanent free plan
Superhuman Mail
The speed benchmark for email — sub-100ms keyboard-first triage plus AI drafting in your voice, where most AI email peers bolt chat onto a slower client.
- Fast, keyboard-driven triage
- AI drafts match your writing voice
- Split-inbox triage and follow-ups
- Part of the Superhuman/Grammarly suite
- No standalone Mail plan — Business tier only
- Premium price ($33+/member/month)
- Closed source
- Suite bundling if you only want email