01
Event planners, producers & designers
Run every moving part of an event from first call to last load-out.
- Master timelines & run of show
- Budgets, fees & vendors
- Design boards & floor plans
- Guests & seating
For everyone who makes the event happen
Whether you plan it, host it, style it, feed it, shoot it, play it or pour it.
Two months free · Cancel anytime · Clients and vendors join free
Built by Kemishia Minta, founder of The Seremoni Edit. We run our two Houston venues on it.
Saturday 19 September · The Brick House · 144 guests
Ten professions. One platform.
Pick yours. You only see the tools you need, and you can add more anytime.
01
Run every moving part of an event from first call to last load-out.
02
Every space, hold and tour on one calendar, without double-booking.
03
From the first design board to the last centrepiece on the table.
04
Menus, headcounts and the kitchen plan, tied to the event they feed.
05
Know what’s out, what’s back and what’s already promised.
06
Book, shoot, deliver and get sign-off without a separate proofing site.
07
Bookings, packages and every detail of the night, in one place.
08
Bar packages, client details and the crew to pour them.
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Equipment, crews and cues for every production you run.
10
The right people, on the right shift, confirmed and paid.
Every workspace also includes CRM & inquiries · proposals & e-signatures · invoices & payments · client portal & messages · calendar · files
Collaboration
Your team, clients and vendors share one event. Each sees only their part, and clients and vendors join free.
You & your clients
Your client gets one link with the next thing to do. You get the signature, the payment and the answers, filed where they belong.
Your client on their phone
Your next steps
You, wherever you are
Quiet for now. Your client has the link.
Easier for you
Easier for them
Product
One record. Every part of the job reads from it.
Drag tables, seat guests, see it in 3D.

Every event, hold and load-in.

Budget, actuals and margin.

Send, sign and countersign.

Minute by minute, on every phone.

The look, shared with every vendor.

Mail & team chat
Send and receive from you@yourbusiness.com right inside Source of Truth, and talk to your team without opening another app.
No separate email subscription. Team email addresses are $5/month each, personal or shared. See pricing
Five tools that don’t talk to each other, at list price:
Public monthly list prices as of August 2026 (Aisle Planner Professional, Prismm Professional, Timeline Genius Pro, HoneyBook Essentials) and Microsoft 365 Business Basic for one user (email on your domain and Teams), compared with SOT Full plus one team email address. Your stack will differ.
The Founding 100
The first 100 event businesses to subscribe get founding rates, kept for as long as they stay.
Essentials1 team member · 100 GB
$40/monthStandard $59
Business3 team members · 500 GB
$79/monthStandard $149
Full8 team members · 1 TB
$179/monthStandard $249
Limited to the first 100 businesses
100 places across all three plans. Applied automatically at sign-up, no code.
The Founding 100
Our founding members have secured their rates. You can still join Source of Truth and get the tools built for your business.
Get started
Set up in a minute. Cancel before the two months are up and you pay nothing.
Founding 100. Lock in the founding rate for as long as you stay. How it works