Stack Trainer

Stack Trainer

Mnemonica Stack Practice

8 ratings
7 reviews
Free
In-App Purchases

Details

Released
March 27, 2026
Updated
October 28, 2026

Features

Stack Trainer video #1 for iPhone
Stack Trainer screenshot #2 for iPhone
Stack Trainer screenshot #3 for iPhone
Stack Trainer screenshot #4 for iPhone
Stack Trainer screenshot #5 for iPhone
Stack Trainer screenshot #6 for iPhone
Stack Trainer screenshot #7 for iPhone
Stack Trainer screenshot #8 for iPhone
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About

Enhance your memorized deck skills with daily practice sessions. This app offers guided learning for card sequences, detailed progress tracking, and various training modes to improve recall and fluency. It's designed for magicians to master their decks efficiently.

✓Daily practice sessions
✓Guided PAO learning course
✓Card-to-position and position-to-card recall
✓Speed and accuracy training modes
✓Progress tracking with focus cards
✓Support for iPhone, iPad, and Apple Watch
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What's New in Stack Trainer

2.3.7

October 28, 2026

- Fixed an issue where the first PAO lesson could stop responding to the arrows and close button. - Bug fixes and stability improvements.

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Subscriptions & In-App Purchases

$19.99

Stack Trainer Pro

Unlock Pro features with a one-time purchase.

User reviews

Absolutely amazing

The gamification of learning mnemonica is so helpful! This app is fantastic and I can’t stop recommending it to magician friends.

Super helpful!

Incredibly helpful practice tool, and beautifully designed. Even the watch practice games are good. My intro was the Rick Lax video, but I wonder if the anchors this app uses might’ve been more effective.

Matchup doesn’t work on iPhone anymore

Great app but matchup doesn’t work on my iPhone anymore. I can only see about 30 cards of the 42. When it was 15 pairs everything fit. Now it doesn’t fit anymore

Response from developer

Thanks for the detailed report, and sorry about that. You're right: on some iPhones Matchup was dealing 21 pairs, which is more than the screen can show. The next update (2.1.3) caps iPhone boards at 15 pairs again and makes sure every card always fits on screen. Thanks for helping make Stack Trainer better.

Great for beginners

I used this app along with an actual deck of cards. The real deck worked best to memorize the Mnemonica stack order & the app worked best to memorize the position of every card. The closer I got to having the order of all 52 cards memorized the more helpful this app became towards helping me memorize the position of each card at a moments notice. You would think that memorizing the order of the deck would automatically help you memorize the position of each card but it doesn’t. It’s like trying to memorize two different data sets at the same time. Again, a real deck of cards is great for memorizing the order, this app is great for memorizing the position of each card.

Update: After a month of training I found this app so helpful I decided to upgrade to Pro mode as a thank you for the help it provided 🤗
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Perfectly simple app

Perfect for training mnemonic stacks

Developer apps

FAQ

What is Stack Trainer?

Stack Trainer is an application designed for magicians to practice and master memorized card decks. It offers guided learning, daily practice, and detailed performance analytics to improve recall and fluency.

Is Stack Trainer free to use?

The core features of Stack Trainer, including Mnemonica practice in most modes and the first 5 cards of the PAO course, are free. Additional content and features are available through a one-time Pro unlock.

What devices does Stack Trainer support?

Stack Trainer is available on iPhone, iPad, and Apple Watch, allowing users to train on different devices and sync their progress.

How does Stack Trainer help me learn Mnemonica?

Stack Trainer offers a guided PAO (Person, Action, Object) course that teaches each card individually. It then tests your knowledge both ways: card to position and position to card, with spaced reviews to reinforce learning.

What are the Pro features in Stack Trainer?

The Pro version unlocks the full Mnemonica PAO course, additional card systems like Aronson and Redford, custom stack building, Improv mode, adaptive focus cards, and iCloud sync. This is a one-time purchase.

Does Stack Trainer have ads?

No, Stack Trainer is ad-free. The developer explicitly states 'No subscription. No ads. One purchase.'

How often is Stack Trainer updated?

The latest version is 2.3.7, and it was last updated on October 28, 2026. This indicates a relatively active development cycle for the app.

What is the age rating for Stack Trainer?

Stack Trainer has an age rating of 4+, making it suitable for a wide range of users interested in learning card memorization techniques.