Simma Book 20 min
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Why us

Why not Squarespace + Calendly + ChatGPT?

Because an AI bolted on top of five vendors can draft. It can't finish — and finishing is the whole job.

5 logins5 bills5 copies of every customer
Sq
Websitesquarespace · login 1
Ca
Bookingscalendly · login 2
St
Paymentsstripe dashboard · login 3
Ma
Email listmailchimp · login 4
AI
An assistant on topchatgpt · login 5
One job, two ways

"Get Jamie booked into Thursday's class."

A bolted-on assistant stops at the edge of each vendor's API. Here's how far each one gets.

The step
Bolted-on AI
Simma
Draft a friendly replyAnyone can write the words.
✓
✓
Read the real timetableAcross a calendar API — maybe, a second out of date.
~
✓
Hold the slotSo nobody else takes it while Jamie says yes.
✕
✓
Take the depositAgainst Jamie's class pack.
✕
✓
File it all to one customer recordThe chat, the booking and the money — once.
✕
✓

The record is where the job ends. And nobody in that stack owns the record.

The agent boom

Makes owning the software sharper, not weaker.

Every AI agent is only as good as the surfaces it can act on. Stacks rent their surfaces from each other, so their agents negotiate permissions across companies for every action. Simma's agents work inside software Simma ships.

So why hasn't an incumbent done this?

Because it's a platform build, not a prompt.

Not a quarter of prompt engineering on top of a plugin marketplace — the website builder, the bookings, the payments, the invoicing, the records, as one system in production. That build took twenty months, and it is the head start.

The honest counterpoint. Incumbents have distribution and speed, and vertical SaaS will keep adding AI features. The bet is that agents need one record to act on — and the record is the platform, not a feature.

Draft is a feature. Finish is a platform.

Book 20 minutes ↗ What's built, and what isn't