Master any memorized deck
Mnemonica: Stack Trainer is the iOS app that helps magicians learn Juan Tamariz’s Mnemonica, Simon Aronson’s stack, or any custom card stack — with focused study, smart drills, and per-card analytics.
One-time purchase · No subscription · iPhone & iPad
Everything you need to make a stack second nature
Iconic Preloaded Stacks
Start training immediately with renowned memorized stacks from magic legends — including Juan Tamariz’s Mnemonica and Simon Aronson’s stack. No setup required.
Custom Stack Builder
Working with your own system? Build and save any 52-card arrangement with the visual stack editor and train it exactly like the classics.
Study Mode
Review card sequences card by card or as a full stack overview in a sleek, distraction-free interface designed for focused memorization.
Dynamic Practice Modes
Train in both directions — card to position and position to card — with random prompts, sequential drills, and adaptive exercises that keep sessions fresh.
Targeted Training
Focus your drills on specific segments: first quarter, second half, or any custom range like positions 14–26. Learn the deck in manageable chunks.
Performance Analytics
Detailed statistics show your accuracy and response time per card, so you can identify weak spots and target them until every card is instant.
Designed for daily practice
Why memorize a deck?
A memorized deck is one of the most powerful tools in card magic. When you know the exact position of all 52 cards, effects that look impossible become almost self-working: instant card locations, any-card-at-any-number, demonstration poker deals, and predictions with no visible method.
The hard part has always been the memorization itself. Mnemonica: Stack Trainer turns it into a structured daily routine — study a small range, drill it in both directions, review your weakest cards, and expand the range as your recall becomes instant. Developed by magicians, for magicians.
Frequently asked questions
What is a memorized deck?
A memorized deck (or "memdeck") is a full deck of 52 playing cards arranged in a specific order that the magician knows by heart. Knowing the exact position of every card unlocks some of the most powerful effects in card magic — instant location, spelling tricks, poker deals, and seemingly impossible predictions.
What is the Mnemonica stack?
Mnemonica is the memorized deck order created by Spanish magician Juan Tamariz and published in his book "Mnemonica" (2004). It is the most widely used memorized stack in card magic, prized for its built-in effects, poker deals, and the ease with which it can be reached from new deck order.
Which stacks are included in the app?
The app ships with iconic memorized stacks — including Juan Tamariz’s Mnemonica and Simon Aronson’s stack — ready to train out of the box. You can also build and save your own custom stacks with the stack builder.
How long does it take to memorize a stack?
With focused daily practice, most people learn a full 52-card stack in a few weeks. Training in small ranges (13 cards at a time), drilling both card-to-position and position-to-card, and reviewing your weakest cards — all built into the app — is the fastest route to real fluency.
How much does the app cost?
Mnemonica: Stack Trainer is a one-time purchase of $4.99 (or the equivalent in your local currency — the App Store adjusts pricing per region). No subscription and no in-app purchases.
Does the app require an account or collect my data?
No account is needed and no personal data is collected. All your training data stays on your device. See the privacy policy for details.
Which devices are supported?
The app runs on iPhone and iPad and requires iOS 16.6 or later.
Start training today
Available now for iPhone and iPad.