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Slashy vs Superhuman

Both are fast. Slashy does the work.

Both are keyboard powered inboxes. Slashy adds a proactive assistant that drafts from your meetings and CRM, tracks follow-ups, and works from iMessage and Slack as well.

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7 day trial · credit card required · cancel any timeBacked by Y Combinator

Everything you expect. More ways to work.

Comparison based on publicly available product information (superhuman.com/mail and help.superhuman.com) reviewed October 9, 2026. Features and pricing may change. The table covers Superhuman Mail; Superhuman Go is a separate product. An x in the Superhuman column means the feature is not on Superhuman's public pages. Superhuman is a trademark of Superhuman Platform Inc. Slashy is not affiliated with or endorsed by Superhuman. This table covers selected inbox workflows and is not a complete feature list.

Superhuman
Keyboard-first speedFly through your inbox with familiar shortcuts for everyday actions.
Unified inboxSlashy brings all your inboxes and calendars into one view. Superhuman documents a workaround using one tab per account.Tab workaround
Split inboxesBoth products let you separate important categories into focused inbox views.
Drafts in your style, with contextBoth personalize drafts using your email history. Slashy can also ground drafts in connected LinkedIn, CRM, and meeting-note context. On Superhuman, personalization is a Business plan feature.Partial
Trigger-based automationsRun automations from incoming email, on a schedule, before or after calendar events, and when a reply goes unanswered. Superhuman Mail offers auto labels, archive, drafts, and reminders.Limited
Read statusBoth products show whether a sent email has been opened.
Control email from iMessage and SlackRead, reply, and automate email from iMessage or Slack.
MCP accessBoth products offer MCP access for compatible AI tools.
Attio, HubSpot, and SalesforceConnect Slashy to Attio, HubSpot, and Salesforce. Superhuman lists HubSpot, Salesforce, and Pipedrive.Attio not listed
Meeting-note integrationsSlashy connects directly with Granola, Circleback, Fathom, Fireflies, and more.

Fast like you are used to. Then the work gets done.

Run it from your phone

Slashy texts you when someone who matters writes. Text back to reply, send, or schedule, without opening the inbox.

I see you’re still in the 10:00 meeting with Mike, want me to let Jane know you’re gonna be late? yea sg, emailed her btw, she also went to GT, could be good to bring up :)

The reply is waiting when you open the thread

Not a generic suggestion. Slashy writes it from the meeting you just had, the record in your CRM, your connected notes, and everything you have said to this person before, in your voice.

Gavin Belson gavin@hooli.com
Acquisition Offer for Pied Piper
Your middle out algorithm is impressive. Hooli is prepared to offer $10 million for Pied Piper. This is a rare opportunity, Richard.Gavin BelsonCEO | Hooli
InterestedNeed more detailsNot interested

Before we proceed, I’d need to understand how this affects our IP and the team.

Send

Nobody waits on you without you knowing

Slashy finds every thread waiting on your reply and every one that went quiet on their side, ranks them by urgency, and has the nudge drafted.

Replies you owe
Sarah ChenQ4 budget reviewUrgent3d
Mike TorresIntro to the Redpoint teamDue today1d
Acme LegalSigned contract attachedWaiting on them2d

Handle your inbox from iMessage

  1. 01.Tell Slashy what you need

    Ask for a reply, a summary, or a follow up in plain language.

  2. 02.Slashy handles it in your inbox

    It finds the right thread, uses the full context, and sends the finished draft back in iMessage.

  3. 03.Review and approve

    Get the result by text, request changes, or send it without opening email.

Find Monica’s last email, draft a reply confirming Thursday at 10:00 AM, and attach the Pied Piper deck.
Found Monica’s thread. I’m using the full conversation to draft the reply.
Done. I used your last Raviga thread for context and attached the Pied Piper deck.
From:richard@piedpiper.comTo:monica@raviga.comCc:laurie@raviga.comHi Monica, Thursday at 10:00 AM works. I attached the Pied Piper deck.SendSend later
Want me to send it, or change anything first?
Send it
Sent.

Built for people who live in email

Shortcuts, scheduling, integrations, tracking, and team tools are built into the same intelligent inbox.

Bring your inbox into the AI tools you use
Slashy MCPBring your inbox into the AI tools you use
Book meetings from the thread
SchedulingBook meetings from the thread
Connect the tools around your inbox
IntegrationsConnect the tools around your inbox
Set labels in plain English
Smart labelingSet labels in plain English
Every keyboard shortcut you expect
Power toolsEvery keyboard shortcut you expect
Know when your message lands
Recent opensKnow when your message lands
See every inbox in one calm view
Unified inboxSee every inbox in one calm view
Bring your team into any thread
Team commentsBring your team into any thread

Choose the plan that fits how you work

ProfessionalFor founders and growing teams that need one intelligent inbox across every account.
$25/user/mo.$30$300 billed annually
$30/user/mo.billed monthly
  • Intelligent drafts and rewrites
  • Multiple inboxes and calendars
  • Automations and reminders
  • iMessage, Slack, voice, and mobile access
Get started Get started
EnterpriseFor larger organizations that need advanced security, controls, and support.
CustomTailored to your organization
  • Everything in Professional
  • SSO and SCIM
  • Guided team onboarding
  • Custom security and data controls
Talk to sales

7 day trial · credit card required · cancel any time

Built with security from the ground up

Your data is encrypted, never used to train AI models, and protected by independently audited controls.

Encrypted in transit and at rest

Your data is encrypted in transit with TLS 1.2+ and at rest with AES 256 encryption.

SOC 2 Type II

Independent auditors evaluate our controls against the AICPA Trust Services Criteria for security and confidentiality.

No training on your data

Your emails are never used to train models. Our agreements require AI providers not to retain them.

Questions & answers

Does Slashy have a desktop app?
Yes. Use Slashy on your laptop with the desktop app or in any browser. A dedicated Windows app is coming soon.
Does Slashy have a mobile app?
Yes. Slashy has a native iPhone app. You can also read, reply, and manage your inbox through iMessage or Slack. Android is coming soon.
Does Slashy have all the Superhuman keyboard shortcuts?
Yes. Slashy supports all Superhuman keyboard shortcuts, so your existing muscle memory carries over.
Which email accounts does Slashy work with?
Slashy works with Gmail, Google Workspace, Outlook.com, and Microsoft 365, on web, desktop, and iOS.
What integrations does Slashy connect to?
Slashy connects to Attio, HubSpot, Salesforce, Granola, Circleback, Fathom, Fireflies, Slack, and more. You can also add any compatible external MCP server to bring its tools and context into Slashy.
How does Slashy protect my data?
Your data is encrypted at rest and in transit. Slashy is SOC 2 Type II certified and undergoes monthly third-party penetration testing. Your email is never used to train AI models.
What does it cost?
Slashy is $30 a month, or $25 a month billed annually ($300 a year), for unlimited usage. The 7 day trial includes every feature, requires a credit card, and can be canceled any time.

See how Slashy works for you

7 day trial · credit card required · cancel any time

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