Pre-order price ends in --d --h --m --s

The most organic demonstration of π ever created.

As natural… and as deceptive as Hypermnesia. Recite the digits of π from any position, reveal where any sequence hides, and let spectators check everything themselves.

€89.99€99.99Save €10

Pre-order price. €99.99 after launch.

  • Secure Stripe checkout
  • VAT included
  • App Store code at launch
  • Always with you
  • No internet connection required
  • No external websites
  • No secret peeks
  • No crib sheets
  • No assistants

Official trailer

See it performed, then explained

A complete live performance, followed by a walkthrough of how HyperPi makes it possible.

What you can do with HyperPi

Every effect runs from the phone in your hand, with nothing to hide and nothing to look up.

  • Recite from any position

    Recite the digits of π starting from any position freely chosen by a spectator, or picked at random among the first 10,000 digits.

    Position 2,064 → 2601476990…

  • Find any sequence instantly

    Reveal the position of any three-, four- or five-digit sequence within the first 10,000 digits of π, and repeat the demonstration as often as you like.

    26433 → position 21

  • Entirely original effects

    Perform effects never seen before, including an impressive speedrun in which you enter dozens of digits in just a few seconds.

  • A suspense-filled finale

    End your demonstration with an unexpected, spectacular and suspense-filled finale.

Let them check. Everything.

Spectators can verify any sequence you recite using Google, artificial intelligence or any other source. The demonstration stays convincing from beginning to end, and natural enough to withstand even the most spontaneous verification.

Always on your phone, HyperPi can be performed as a standalone routine or woven seamlessly into any presentation involving the digits of π.

ChatGPT answering that the 10 digits of π starting at position 2064 are 2601476990
A spectator asks ChatGPT for the 10 digits at position 2,064. The answer matches, because the digits are real.

Two years in the making

This is not another “vibe-coded” project thrown together with AI over a weekend. Based on an original idea by Feodor, HyperPi was designed and developed by Bassem Allani, then tested and refined over many months to deliver an experience that is both seamless and reliable.

  • Feodor

    Feodor

    Original idea

  • Bassem Allani

    Bassem Allani

    Design & development

Pre-order HyperPi

Lock in the pre-order price today. You pay once, and HyperPi is yours on launch day.

  1. 1

    Pre-order today

    Pay €89.99 instead of €99.99.

  2. 2

    Launch day

    We email you an App Store code.

  3. 3

    Redeem and perform

    Download HyperPi and start performing.

  • The full HyperPi app, with every mode and effect
  • Works offline on iPhone & iPad (iOS 26 or later)
  • One-time purchase, no subscription

Pre-order price ends in

--Days
--Hours
--Mins
--Secs
Choose your pre-order

Secure payment by Stripe. VAT included. We use your email to send your App Store code.

Questions

How will I get the app?

On launch day, we email you an App Store offer code. Redeem it in the App Store to download HyperPi at no extra cost. If you added Integrations, a second code unlocks the add-on.

When does HyperPi launch?

In the coming weeks. The pre-order price is available until the countdown ends, and we email you as soon as HyperPi is live.

Is it a subscription?

No. HyperPi is a one-time purchase.

What do I need?

An iPhone or iPad running iOS 26 or later. No internet connection is needed during a performance.

How is it different from HyperPi Lite?

HyperPi Lite is our free π memorization trainer. HyperPi is the full performance app for magicians and mentalists, with every effect described on this page.

What does the Integrations add-on do?

It connects HyperPi to Bluetooth remotes, Lumen Duo displays, and online or local services such as Inject, Goo and MysterSmith, so searched digits, positions and sequences reach your peek devices. It costs €79.99 after launch. Pre-order customers get it for €19.

Can I perform HyperPi on TV?

TV rights are not included. Contact contact@hypermnesia.fr for television or broadcast use.

Another question? Email us

HyperPi app icon

Lock in €89.99 before launch

The pre-order price ends with the countdown. After launch, HyperPi costs €99.99.

Pre-order for €89.99

Pre-order price ends in --d --h --m --s