Superhuman

Superhuman is a premium email client designed around one goal: getting through email as fast as possible. It layers on top of your existing Gmail or Outlook account and replaces the interface with a keyboard-first experience — nearly every action has a shortcut, search returns results instantly, and features like Split Inbox, snooze, and follow-up reminders keep a busy inbox under control. Its AI writes and refines replies, summarizes long threads, and helps triage what needs attention.

The audience is deliberately narrow: executives, founders, salespeople, and others who live in their inbox and will pay to save time. That premium positioning sets it apart from free clients and from productivity-oriented apps like Spark or Missive, and from AI-native newcomers such as Shortwave. Superhuman’s differentiator has always been speed and craft rather than breadth of features.

In 2025 Superhuman was acquired by Grammarly, positioning it inside a larger AI productivity suite while continuing as a standalone email product.

Key Features

• Keyboard-first navigation with shortcuts for nearly every action
• AI reply drafting and tone adjustment
• Thread summaries for long email chains
• Instant search across full email history
• Split Inbox to separate important mail from noise
• Read status, follow-up reminders, and snooze

Pricing

• Paid: Around $30 per month per user (billed annually), including onboarding; team and business plans available
• No free tier — a trial is typically offered

Best For

High-volume email users — executives, founders, investors, and salespeople — who treat inbox speed as a real productivity lever and are comfortable paying a premium for it.

Limitations

The price is the obvious barrier: free Gmail and Outlook cover most people’s needs, and Superhuman only makes sense if your time is worth the subscription. It also demands a real learning investment to reach its promised speed, and since it sits on top of Gmail or Outlook, it isn’t an email provider of its own.