MindTricksMindTricks

INVITATION ONLY TECH FOR PROFESSIONAL MENTALISTS

Sigma

Sigma — a discreet iOS application designed with, and for, professional mentalists. The final answer to borrowed phone, borrowed calculator.

What it is

IOS · INVITATION ONLY

Sigma — held on a dark stage under warm gold light.

iOS · Digital

Sigma

Sigma — close-up of the application on device.

The Instrument

Sigma

World-Class iOS app

$1,000One-time · Perpetual license

Sigma is engineered for the working stage. It disappears into the palm and behaves the way experienced performers already move. The result is quiet, repeatable, and yours alone.

  • Designed with working mentalists over four years of private testing.
  • Runs entirely on-device. No network dependency during performance.
  • Perpetual license tied to a single performer account.
  • Continuous refinement — updates delivered privately to license holders.

Sold to working performers only. All sales final.

Format
iOS application
License
One performer, perpetual
Delivery
App Store download + private docs
Updates
Included, indefinite
Support
Direct, from the makers

In their words

“It changed what I trust myself to do on stage. Quietly. That's the whole compliment.”
A. Marceau · Corporate mentalist, Paris
“I've bought instruments for twenty years. Sigma is the first one that actually behaves like a tool.”
R. Vale · Touring performer
“Discreet, dependable, and utterly the wrong thing to explain in public.”
I. Halvorsen · Close-up specialist

Questions

What we can say.

The method and effect is protected.

Who is Sigma for?
Working professional mentalists by invitation only. If you don't perform for money, this isn't for you — and that's not a marketing line.
How do I get an invitation?
Existing license holders have a limited number of invites to share with vetted performers they know. Reach out to an existing user (likely the person who sent you here).
Will you describe what it does?
Not publicly. Both the effect and method are protected. Full documentation is delivered privately to license holders after purchase.
Why this approach?
The internet is forever. LLMs now consume all websites, marketing copy and video transcripts. The more we say here. The more they know. This knowledge can never be removed from the models.
Refunds?
Because access is delivered instantly and the method is disclosed, all sales are final. Contact us before purchase with any questions.

Private access

Admit one.

Sigma is licensed to working performers only. If you have an invitation, the door is open.

Invitation required · All sales final