Superhuman Alternatives (2026): 10 Tools Compared

Superhuman is a fast email app with AI features that draft replies and keep your inbox in order. It's built for people who live in email, and plenty of them love it. But it isn't the only way to get through a crowded inbox, and you may want a different look, another set of accounts or a different way of working.

Here are ten Superhuman alternatives in no particular order, sorted alphabetically. Some are AI assistants that sit on Gmail, others are full email apps, and a couple are email services with their own approach. I've taken every description from each tool's own website, so check the current details there before you connect your inbox.

Superhuman alternatives at a glance

In the free plan column, Yes means the tool's own site describes a free plan or free version. Trial only means a free trial without an ongoing free plan. Offers change often, so confirm on the site itself.

Tool	Type	Good for	Free plan
Canary Mail	Email app	AI drafts and a unified inbox	Yes
Edison Mail	Email app	One inbox for many accounts	Yes
Fastmail	Email service	Mail on your own domain	Trial only
Fyxer AI	Email assistant	Sorting mail and drafting replies	Trial only
HEY	Email service	Screening who can reach you	Trial only
Mailbird	Email app	A unified inbox on your computer	Yes
Mimestream	Mac email client	A fast native Gmail app	Trial only
Missive	Team inbox	Sharing and discussing email with a team	Trial only
Shortwave	AI email app	AI search and filters for Gmail	Trial only
Spark	Email app	Smart inbox and team features	Yes

Ten AI email apps and inbox services to weigh up

Canary Mail

Best for: People with several accounts; it connects Google, Outlook, iCloud, Yahoo and others and offers an AI writer and thread summaries.

Edison Mail

Best for: Anyone who wants a unified inbox; it offers AI Compose and Mail Rules, and blocks spy pixels by default.

Fastmail

Best for: Small businesses who want a dedicated mailbox with calendar and contacts; it helps migrate mail from Gmail, Outlook and Yahoo.

Fyxer AI

Best for: Busy owners who want triage help; it labels mail, drafts replies for review, and connects to Gmail and Outlook.

HEY

Best for: People tired of noise; its Screener holds first-time senders until you decide, and apps cover web, desktop and mobile.

Mailbird

Best for: Windows users with several accounts; it connects Gmail, Outlook, iCloud, Yahoo, Proton and IMAP and stores mail on your machine.

Mimestream

Best for: Mac users who live in Gmail; it uses the Gmail API and runs only on macOS.

Missive

Best for: Small teams who handle email together; it adds shared inboxes, internal comments, tasks and an AI assistant.

Shortwave

Best for: Gmail users who want an AI agent for organising, writing and searching mail, available on iOS, Android, Mac and Windows.

Spark

Best for: People who want filters and collaboration; it connects IMAP, iCloud, Exchange, Outlook, Yahoo and Google and has an AI assistant.

What an AI email app can read once you connect your inbox

An email app with AI features usually reads your messages, your contacts and often your calendar. It needs that to sort, summarise and draft. That's useful, and it's also a great deal of private information, so read the permissions carefully.

• Whole inbox or selected mail. Check whether the tool reads everything or only what you ask it to.
• Where messages are stored. Some apps keep mail on your computer, others process it on their servers.
• AI processing. Find out whether your text goes to another AI provider and whether it's used for training.
• Removing access. Make sure you can revoke it from your Google or Microsoft account settings.
• Client confidentiality. If you handle sensitive client mail, check your own obligations first.

Email app, AI assistant or new mailbox: three ways to fix an inbox

Not every Superhuman alternative does the same job. An email app replaces the window you read mail in. An AI assistant sits on top of your existing mailbox and sorts or drafts. A new email service moves your mail to a different provider altogether.

• Email apps. Keep your current addresses and change how you read and sort mail.
• AI assistants. Keep your inbox and add triage and draft help.
• Email services. Move to a new mailbox, often with its own calendar, and plan the switch carefully.
• Team inboxes. Suit groups who answer the same mail together.

My piece on using AI to triage email instead of writing it explains why sorting often beats drafting, and my guide to improving Gmail without extra apps is worth a read before you install anything.

Trying a Superhuman alternative without risking your inbox

Connect one account first, ideally a secondary address, and spend a few days with it. Keep your old app installed for reference. Check what the new tool changes in your mailbox, such as labels, folders or read status, and whether it affects what other people see.

1. Start with one account, not all of them.
2. Check how it handles labels, folders and archived mail.
3. Test the drafting feature on low-stakes messages and read every draft before you send it.
4. Look at your sent mail to make sure replies look right.
5. Remove the old app's access once you're settled.

Questions to settle before you leave Superhuman

• Which features do I rely on, such as split inbox, snippets or reminders?
• Does the new tool work with my email provider and devices?
• Where do my drafts and messages get processed?
• Can my team share or hand over mail if needed?
• What does the free plan or trial include today?
• How do I disconnect and delete my data?

If you want help working out where AI belongs in your business, you can read about working with an AI consultant in the UK. My round-up of AI tools for small business owners covers email helpers alongside other tools.

Why a smaller email tool can be a sensible pick

Smaller makers often focus on one idea, such as a screener or a native Mac app, and update quickly. They may also support fewer platforms. Check that the site is current, read the help pages and keep your mail in an account you can access from anywhere, so you're never locked in.

Do you make an AI email app or inbox assistant? Tool makers can ask to be considered for a featured place on this list.

A short checklist before you switch email app

Choose two options that match your provider and devices, connect one account to each and run a normal week. Check what each reads, how drafts are made and what the free plan or trial includes. Keep the one that makes your inbox quieter.

Frequently asked questions

What can I use instead of Superhuman?

You can use another email app, an AI assistant that sits on your existing mailbox, or a different email service. The right type depends on your provider, your devices and how much you want AI to draft for you.

Are there free alternatives to Superhuman?

Some email apps have free plans and others offer only a free trial. The table above shows which is which, though offers change so check each site.

Is it safe to let an AI email app read my inbox?

Read the permission screen, check where messages are processed and whether your text goes to another AI provider. Start with a secondary account and remove access from your account settings if you change your mind.

Will I lose my emails if I change app?

Normally no, because your mail lives with your provider such as Google or Microsoft. Check that the app only reads and sorts mail, and keep your old app until you're happy.

Should I let AI send replies for me?

I'd read every draft before it goes out. Drafts are a starting point, and checking them protects your voice and your clients.