Comparison

Stack Master vs VRTX

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

Head to head
About

Stack Master

Master your favorite card stacks with this mobile training application. It offers multiple training modes and challenges to analyze your weaknesses and improve your learning curve. Supports various pre-set and custom stacks.

Highlights
  • Multiple training modes
  • 18 funny challenges
  • Supports pre-set stacks
  • Create custom stacks
  • Publish scores and compare with friends
  • Specialized training modules
Features
Read full description

Stack Master is a stack training application. To learn a stack, best option from my perspective, are the flash cards. There are some awesome flash cards applications but I wanted something "stack oriented", easy and fun, that runs on my mobile phone ; a simple mobile application that analyzes my weaknesses and "trains" me accordingly, remembering my "weak cards" and my learning curve. Stack Master offers you to study your stack without pain, using 9 clever training modes and 18 funny challenges. Stack Master supports multiple stacks (Mnemonica, Aronson, Osterlind, Redford, Si-stebbins, Rix...) and you can add and create custom ones, directly from the application. You can even publish your score challenges and compare them with those of your friends! Besides the 18 funny challenges and the 4 training modules, 5 special training modules are available as well: * "The core", if you bought this nice routine of Pitt Hartling, you'll be able to train yourself with this dedicated module. * "Perfect hit", if you wish to improve your practice of effects like "Mnemonicosis" of the master Juan Tamariz, then this module is for you. * "Miracaan", if you bought this nice ACAAN of Dorian Caudal, you'll be able to train yourself with this dedicated module. * "Decimals of Pi", if you bought this effect of Vincent Hedan, you'll be able to train yourself with this dedicated module. * "Sandbox", if you only need to experiment something with a virtual deck of cards, be my guest!

About

VRTX

This tool instantly generates acrostics for any word, perfect for creating unique storytelling routines in magic tricks. It offers easy export options and integrates with other magic applications for advanced functionality.

Highlights
  • Instant acrostic generation
  • Creative storytelling routines
  • Easy export to notes or sharing
  • Seamless API integration with magic apps
  • Dice-controlled acrostic selection
  • Expanded dictionary options
Features
Read full description

------------------------- • WELCOME TO VRTX • ------------------------- Created by Eddy Bouchenak and Guillaume 'GB' Bellut VRTX (pronounced vertex) is an acrostic generator design for magic tricks. ------------------------- Core Features (Included) ------------------------- • Instant Acrostic Generation – Generate an acrostic for any word with a single tap. • Creative Freedom – Use generated words to craft unique storytelling routines. • Easy Export – Save acrostics directly into a note or share them effortlessly. ------------------------- Powerful Add-Ons (Available Separately) ------------------------- • Seamless API Integration – Connect VRTX with other magic apps like Inject, Elips, WikiTest, and more. • Dice-Controlled Acrostics – Manually select a dice value or sync with Kinetic Mental Dice for automatic positioning. • Custom API Output – Export generated acrostics to any app or system of your choice (Glyphs, Voila, Hydra...). • Expanded Dictionaries – Unlock additional word lists to refine and customize your acrostic possibilities. VRTX is part of the new "In The Middle" (ITM) generation of magic apps, acting as a seamless bridge between applications—receiving input from one app, transforming it, and sending it to another. Please note: TV & Internet rights are not included with any of our products.

Screenshots

Stack Master2 screens
VRTX4 screens

Verdict

The call

The clearest difference is price: VRTX at Free against Stack Master's $24.99. VRTX also leads on rating (5.0 vs 3.8) and review sentiment (100% vs 83%). Stack Master's advantage is in-app purchases (none vs 23) and ratings volume (9 vs 1). On update cadence, ads and device support 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

VRTX is free to download; Stack Master costs $24.99 up front. VRTX sells 23 one-off in-app purchases. Stack Master asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

VRTX holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Stack Master has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Stack Master's written reviews are positive against 100% of VRTX's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
Stack Master versus VRTX: the parameters behind the verdict, then further details
ParameterStack MasterVRTX
Price$24.99Free — better
Rating3.8 (9 ratings)5.0 (1 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings9 — better1
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.6
Further details — not scored
Size36 MB99 MB
Age rating4+4+
DeveloperDevious-MonkeyGuillaume Bellut

Customer experience

Stack Master

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews12 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

VRTX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stack Master

No in-app purchases

23 purchases

VRTX

One-time23
  • Dizionario delle destinazioniFree
  • Dicionário de DestinoFree
  • ReisezielwörterbuchFree
Show 20 more
  • Dictionnaire de destinationsFree
  • Destinations DictionaryFree
  • Dizionario dei marchi$4.99
  • Dizionario degli animali$4.99
  • Dizionario degli oggetti$4.99
  • Dicionário de Objetos$4.99
  • Woordenboek van beroemdheden$4.99
  • Dicionário de Marcas$4.99
  • Dicionário de nomes$4.99
  • Dicionário de celebridades$4.99
  • Promi-Wörterbuch$4.99
  • Tierlexikon$4.99
  • Dictionnaire de prénoms$4.99
  • Dictionnaire d'objets$4.99
  • Animals Dictionary$4.99
  • Names Dictionary$4.99
  • Dictionnaire de marques$4.99
  • Celebrities Dictionary$4.99
  • Objects Dictionary$4.99
  • Full Version$134.99

Questions

Is Stack Master free?
Stack Master costs $24.99, with no in-app purchases.
Is VRTX free?
VRTX is free to download, with in-app purchases available.
Which has better reviews, Stack Master or VRTX?
VRTX is rated higher. Stack Master averages 3.8 out of 5 from 9 ratings, while VRTX averages 5.0 from 1 ratings.
Do Stack Master or VRTX have ads?
Neither Stack Master nor VRTX shows ads.
Which is updated more often, Stack Master or VRTX?
Stack Master ships an update every 3 weeks, and VRTX every 3 weeks. Most recently, Stack Master was updated on October 26, 2026 and VRTX on October 14, 2026.

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