Overview
Superhuman is a premium email client built around one obsession: speed. Every interaction is engineered to respond in under 100 milliseconds, and the keyboard-first design means you can triage an entire inbox without touching the mouse. Since being acquired by Grammarly and folded into a broader productivity suite, the product has doubled down on AI. It now drafts replies in your own voice, summarizes long threads on arrival, and answers natural-language questions about anything buried in your inbox or calendar. It works on top of existing Gmail and Outlook accounts, so there is no migration pain - you keep your address and your archive. The target user is clear: founders, sales teams, recruiters, and anyone processing hundreds of emails a day where response speed directly translates to money. Teams at companies like Brex report responding to three times more email after switching.
Key Features
- Split Inbox automatically separates important mail from newsletters and notifications using AI labels
- Auto Drafts write full replies in your personal tone, ready before you even open the thread
- Ask AI answers natural-language questions across your inbox, calendar, and the web
- Instant Reply suggests one-tap responses for routine messages
- Shared conversations and team comments let colleagues collaborate on deals without forwarding chains
- Read statuses, send-later, snippets, and follow-up reminders built into the compose flow
Pricing
| Plan | Price | For |
|---|---|---|
| Starter | $30/mo ($300/yr) | Individuals who want core speed + most AI features |
| Business | $40/mo ($396/yr) | Power users needing Auto Drafts, Ask AI, CRM integrations |
| Enterprise | Custom | Larger orgs needing SSO, advanced security, dedicated support |
Comparison
Compared to Grammarly, which polishes whatever you write anywhere, Superhuman is a complete email environment - the writing help is only one part of a much faster inbox workflow. Compared to Notion AI, which centers on documents and knowledge, Superhuman is single-mindedly about email throughput. And where Motion automates your calendar and task scheduling, Superhuman automates the communication side; heavy email users often end up running both.
Hands-on Verdict
Superhuman is the email client I use for speed and AI triage — it summarizes threads, drafts replies, and shortcuts the inbox to zero. It’s more email-native than a generic Ellie and a faster client than a standard app. For drafting I use Ellie.
Who it’s for: busy professionals. Tip: use the AI split-inbox and summaries to clear volume fast — Superhuman’s speed is the point, so let it triage, then act on the important few.