Comparison

Stack Guru vs Stack Memory

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stack Guru

This app helps users memorize and practice a specific card stack, offering customizable practice modes and scheduled reminders. It features seamless integration with Apple Watch for on-the-go practice and progress tracking.

Highlights
  • Customizable practice modes
  • Scheduled practice reminders
  • Apple Watch integration
  • Dark mode support
  • CloudKit (iCloud) data security
  • Offline practice capability
Features
Read full description

Become Mnemonica stack guru! Select how and what to practice, schedule reminders and practice directly on your wrist using Apple Watch - all with dark mode support! WHY While studying Mnemonica by Juan Tamariz, I started to look for an app to serve me as a learning tool. I wanted the app to automatically remind me to practice as well as being able to quickly practice on my Apple Watch (preferably with an complication displaying some daily progress). Unfortunately I did not find what I was looking for and decided to implement the app myself. This app became Stack Guru. CUSTOMIZE Practice parts of the stack, or the whole stack - you decide! Create your custom practice experience by combining practice modes such as Card to Number, Number to Card, What Comes After, What Comes Before or ACAAN, together with selected parts of the stack. This let you either focus on cementing the basics or perfecting your existing knowledge and master the stack. REMINDER Repetition is the mother of all learning. Stack Guru can help you both memorize and to keep the stack fresh in memory. Simply set reminders and let the app notify when to have a quick practice session. Like your own personal stack trainer. APPLE WATCH Having the tool directly on your wrist makes it super easy to take a short break and focus on the stack. Anywhere and anytime! Use the complication to get the progress of your daily goal and have a quick practice session only a tap away. SECURE AND PRIVATE Practice result data stored online is stored using Apple CloudKit (iCloud) to keep the data secure and private to you. The private database data is accessible only by you. When Stack Guru is used offline, the data is temporarily saved on the device to be synchronized and removed later, when the app is back online.

About

Stack Memory

This educational tool aids magicians in mastering mnemonic and Aronson stacking techniques. It provides a focused environment for practicing and reinforcing complex card memorization methods.

Highlights
  • Mnemonic stacking practice
  • Aronson stacking practice
  • Card memorization aid
  • Magician study tool
  • Focused learning environment
Features
Read full description

Mnemonica and Aronson stack study aid for magicians.

Screenshots

Stack Guru4 screens
Stack Memory4 screens

Verdict

The call

The clearest difference is update cadence: Stack Memory at every 2 days against Stack Guru's monthly. Stack Guru's advantage is review sentiment (100% vs 73%) and rating (4.8 vs 4.5). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stack Guru holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews point the same way: 100% of Stack Guru's written reviews are positive against 73% of Stack Memory's.

UpkeepUpdate frequency

Stack Guru ships an update monthly, Stack Memory every 2 days. The most recent releases landed on June 4, 2026 and July 9, 2026 respectively.

Scorecard4 real differences · 6 level
Stack Guru versus Stack Memory: the parameters behind the verdict, then further details
ParameterStack GuruStack Memory
PriceFreeFree
Rating4.8 (5 ratings) — better4.5 (8 ratings)
Positive reviews100.0% of reviews — better72.7% of reviews
Number of ratings58 — better
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple WatchiPhone, iPad, Apple Watch
Requires iOS13.0 — better17.2
Further details — not scored
Size4 MB10 MB
Age rating4+4+
DeveloperJonas ErikssonCHRIS HODGE

Customer experience

Stack Guru

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stack Memory

All ratings8 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews11 reviews
Positive72.7%
Neutral27.3%
Negative0.0%

In-app purchases

None

Stack Guru

No in-app purchases

None

Stack Memory

No in-app purchases

Questions

Is Stack Guru free?
Stack Guru is free to download, with no in-app purchases.
Is Stack Memory free?
Stack Memory is free to download, with no in-app purchases.
Which has better reviews, Stack Guru or Stack Memory?
Stack Guru is rated higher. Stack Guru averages 4.8 out of 5 from 5 ratings, while Stack Memory averages 4.5 from 8 ratings.
Do Stack Guru or Stack Memory have ads?
Neither Stack Guru nor Stack Memory shows ads.
Which is updated more often, Stack Guru or Stack Memory?
Stack Guru ships an update monthly, and Stack Memory every 2 days. Most recently, Stack Guru was updated on June 4, 2026 and Stack Memory on July 9, 2026.

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