Stack Trainer

Stack Trainer

Mnemonica Stack Practice

4 ratings
3 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • March 27, 2026
  • August 26, 2026

Features

Stack Trainer screenshot #1 for iPhone
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Stack Trainer screenshot #9 for iPhone
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About

This app helps magicians memorize and recall card stacks with gamified drills and performance scenarios. It offers various practice modes to build speed, accuracy, and long-term retention of memorized decks.

Gamified daily drills
Memorized deck recall training
Multiple practice modes
Performance tracking
Awards and personal bests
Apple Watch practice
Show original description

What's New in Stack Trainer

2.0.6

August 26, 2026

General UI refinements and usability improvements

1

In-App Purchases

$9.99

Stack Trainer Pro

Unlock Pro features with a one-time purchase.

User reviews

Perfectly simple app

Perfect for training mnemonic stacks

Not for memorizing!!

This is a great trainer for practicing; however, as a complete beginner, you can't learn the stack through comprehensive studying. The practice is meant for people who have already memorized the stack.

Response from developer

Thanks for the thoughtful feedback. We have been working on and have now released Stack Trainer Version 2, which now has a Mnemonica training course built in, available to Pro users. Thanks again for the feedback.

Absolutely love it!!!

Absolutely love this app, it is just what I needed to learn Mnemonica and then practice it daily!!!
Such a wonderfully made app.
Strengthen your recall with fun gamification.

Developer apps

FAQ

What is Stack Trainer?

Stack Trainer is a memorized deck practice and recall trainer for magicians. It helps users build, practice, and retain memorized deck stacks like Mnemonica, Aronson, and others through focused daily drills.

What memorized deck stacks can I practice with Stack Trainer?

Stack Trainer supports Mnemonica, Aronson, Redford, Particle System, Memorandum by Woody Aragón, Nikola Card System, Joyal, and custom-built stacks. The Mnemonica stack can be practiced for free.

What are the different practice modes in Stack Trainer?

Stack Trainer offers Core Recall for instant card and position recall, Stack Fluency for speed and accuracy, and Practical Stack Work for performance-style scenarios like ACAAN. Some modes require a Pro unlock.

Does Stack Trainer have ads?

No, Stack Trainer does not contain advertisements. It is a free app with an optional one-time Pro unlock for additional features.

What features are available in the free version of Stack Trainer?

The free version allows practice of the Mnemonica stack, daily reminders, habit tracking, awards, personal bests, trends, recent sessions, Core Recall, and selected stack practice modes. Filters are available to practice small groups of cards.

What is the Pro unlock in Stack Trainer?

The Pro unlock provides access to advanced memory support features such as custom PAO entries, in-game hints linked to PAO entries, notes and photos in Learn Stack mode, and spaced-repetition-based training with Adaptive Card Prioritization.

How does Stack Trainer help with long-term retention?

Stack Trainer uses retrieval practice, spaced repetition, adaptive card prioritization, visual reinforcement, awards, streaks, personal bests, and performance tracking to turn fragile recall into practical fluency for long-term retention.

What devices is Stack Trainer available on?

Stack Trainer is currently supported on iPhone devices. It also offers Apple Watch practice for on-the-go training.