Fast email client rebuilt with generative writing and triage tools.
At eight in the morning on a damp Thursday, I opened a messy four-way email thread involving an overdue website handover, two confused subcontractors, and an impatient client who wanted to reschedule their review call. Normally, untangling who said what requires reading collapsed quotes in Gmail, checking my calendar, drafting a diplomatic update, and finding three mutual slots. In Superhuman, I hit Enter, typed a brief instruction into the prompt bar asking to acknowledge the delay, calm the client, and propose two times next Monday afternoon, then tapped Tab. Within two seconds, it produced a three-paragraph reply that pulled the correct project topic from the original email, kept my typical polite British cadence, and checked my connected calendar to select vacant slots without overlapping my dental appointment. The draft required two minor word edits before I hit Command plus Enter to send it.
That small task shows what this software actually tries to accomplish. It does not replace your existing email host. Instead, it places a specialised, hyper-fast layer on top of Google Workspace or Microsoft 365, combining strict keyboard navigation with integrated artificial intelligence.
Superhuman expects you to keep your hands on the keyboard and leave the mouse alone. Every single action uses a single key or a short combination. Pressing E archives a conversation. Pressing H brings up a snooze menu so you can defer a message until tomorrow morning, next week, or a specific date. Hitting J and K moves down and up your message list. The entire interface responds in under one hundred milliseconds. When you click around a standard webmail client, you rarely notice the fractional delays, but when an application eliminates them entirely, your brain adjusts quickly.
The search function operates with equal speed. Rather than waiting for a remote server to spin through gigabytes of archives, Superhuman indexes your mail locally on your machine. Typing a query instantly displays results from five years ago. When an urgent query arrives while you are deep in another task, you tap Command plus K to open the command palette, type your action, and execute it without browsing nested configuration menus.
Split Inbox forms the backbone of this sorting method. Instead of one giant heap of unread messages, Superhuman segments your mail into designated priority groups. You might keep direct client queries in your main view, while calendar invites, team notifications, and product receipts sit in their own quiet tabs. Because the software applies these divisions cleanly, your central inbox only holds correspondence that demands personal attention.
Generative text tools often sound like eager marketing interns: too chirpy, too formal, or littered with generic American business jargon. Superhuman approached this problem by training its drafting model directly on your sent messages. If your customary sign-off is a brief 'Many thanks' followed by your first name, it will not suddenly draft an email signing off with 'Warm regards and best wishes for your journey.'
When you ask the system to expand an outline into a full note, it captures context from previous messages in the conversation. In my testing with an angry vendor dispute over an invoice, I typed 'agree to pay half now, other half on delivery of final files.' The resulting draft acknowledged our agreed milestones, cited the exact invoice reference from three emails prior, and maintained a firm, neutral tone. It avoided the sycophantic fluff common to basic language models.
Another helpful component is the instant summary. If you return from holiday to a twenty-message thread between four colleagues debating a contract revision, hitting the summary button produces an objective bullet-point breakdown of who agreed to what and what decision remains outstanding. It saves ten minutes of tedious reading across duplicate quoted text.
Despite the polished speed, living inside Superhuman creates several practical headaches. The most glaring issue is the complete absence of support for standard browser extensions. If you rely on specialized tools for customer relationship management, grammar checkers, or document signing that inject themselves into Gmail or Outlook, you cannot use them here. Superhuman offers a few direct integrations with services like HubSpot and Salesforce, but niche web extensions are shut out completely.
The desktop application also behaves rigidly regarding multiple windows. You are meant to work in one focused stream. If you prefer spreading out five different email drafts across three physical monitors while comparing spreadsheets, the interface feels restrictive. It pushes you toward a linear, one-message-at-a-time philosophy.
Offline reliability can also prove temperamental. While the app caches headers and recent threads well, drafting long messages on a commuter train with patchy mobile reception occasionally leads to sync conflicts. On two occasions, I found duplicate drafts waiting in my outbox once my laptop reconnected to reliable station Wi-Fi.
Mainstream email providers have added their own machine learning assistants, but their implementations often feel bolted onto twenty-year-old frameworks. Google Gemini in Gmail and Microsoft Copilot in Outlook frequently require multiple mouse clicks to activate, take several seconds to generate text, and often produce responses that feel noticeably synthetic. Superhuman builds its assistant straight into the keyboard flow, making generation feel like an extension of your own fingers.
The calendar integration outperforms standard web tools as well. In most email platforms, coordinating a call means opening a second tab, checking your diary, copying time slots manually, or sending an external booking link that some clients view as impersonal. Superhuman lets you press B to view your visual schedule directly alongside your draft. You highlight your availability, and the software writes readable text options straight into the body of the message. If the recipient agrees, Superhuman detects the time and creates the event.
Compared to desktop competitors like Apple Mail or Thunderbird, Superhuman eliminates administrative clutter. It includes read receipts that inform you when a client opens your proposal, link tracking that shows whether they clicked your portfolio, and automated reminders that bring abandoned threads back to your attention if nobody replies within four days.
Superhuman does not offer a free tier. It runs on a premium monthly or annual subscription that sits well above consumer utility pricing. Because plans evolve and team tiers add administrative controls, you should check the site for current prices before making a decision. Generally, you can expect to pay the equivalent of several specialist software subscriptions combined just for your inbox access.
For a solo operator or a small company director, this price only makes sense if you treat time as your scarcest asset. If you clear forty client emails every day and the software cuts fifteen seconds off each interaction, you gain back considerable working time every month. If you only send three messages a week to confirm an invoice, paying this fee is financial madness.
Students, casual computer users, and hobbyists should skip this product entirely. Standard webmail costs nothing and handles everyday tasks admirably. If you enjoy managing your inbox through mouse clicks, colourful labels, and drag-and-drop folders, the rigid keyboard philosophy here will only cause frustration.
Anyone tied to specific Gmail add-ons should also steer clear. If your daily billing workflow depends on a bespoke extension, Superhuman will break that chain. In that situation, tools like Spark or Shortwave provide lighter triage features while keeping closer ties to standard email conventions.
If you run an independent practice, consult on tight deadlines, or direct a small firm where responsiveness protects your revenue, Superhuman proves its worth. It strips away distractions, drafts sensible responses in your personal voice, and returns you to actual client work faster than anything else on the market.
paid — from From $30/mo