Comparison

Stack Trainer vs HAKI

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

Head to head
About

Stack Trainer

This app provides a realistic card deck experience for close-up magicians to train their memory of card stacks. It offers various challenge modes and filters to aid learning and practice, with a focus on a clean, distraction-free interface.

Highlights
  • Realistic card deck simulation
  • Multiple mnemonic training approaches
  • Customizable stack filters
  • Lorrayne's peg words integration
  • Interactive quick-touch analyzer
  • Display and whisper modes
Features
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Stack Trainer forms part of a comprehensive suite of apps that dedicate to technical learning tools for Close-up magicians. Stack Trainer addresses those who are familiar with the concepts related to Aronson, Tamariz, Nikolas. If you know what these names relate to, and you apply the according techniques, then this app will help you stay tuned and inspired.  Stack Trainer provides a most realistic card deck experience. It sets the golden standard for mnemonic deck training. A radical slim design. Cycle through the logical phases of the challenges at hand. Name it the "virtual spectator" concept. Approaches: - Next Card: Sequentially displayed, name the next card - Each Card: Name each card's position in a shuffled stack - Each Position: Name each position's card in a shuffled stack - Get Position: Name the position of a given card - Get Card: Name the card at a given position - Next Suit: Name the distance to the next of the same suit - Wrong Card: Identify the one card that is displaced in the face-up spread stack - Missing Card: Find the missing card in the face-up spread stack - Spot: Spot a specific card in the face-up spread stack - Highest Card: Identify the high and low cards of a random sub-stack - Four of a Kind: Name the distance to the next of the same kind Filters: Filters can be set to reduce the actual stack to a substack of lower size addressing and supporting the gradual progress during the early learning phase of a stack. Filters also provide different perspectives onto a stack to inspire and engage expert users. These filters, applied to the chosen approach, can be set: - ranges 1-13, 14-26, 27-39, 40-52, and a custom range - pair and impair positions - red and black cards - any of the four suits - court and number cards Some Features: - Aronson, Tamariz and user defined stacks - Lorrayne's peg words for the 52 cards and 52 positions, plus 3 user defined sets - display and whisper modes - includes the quick-touch interactive analyser visualising the solution path and allowing for self imposed problem statements with decadic and tridecadic layouts - feedback driven development - feels almost like a true deck of cards. Practicing card magic you don't want no complicated, overloaded and distracting user interface. Less is more. - probably the most complete, and straightforward solution available. A card, the one downwards (or upwards), maybe its mates, maybe the next one of the same suit. Either on random walk, or deliberate choices on the complete map. Touch swipe, swipe. Swipe and again. To experience the look and feel of 'Stack Trainer' load the free 'Random Input' app available by this developer. Additional information: - License agreement - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy policy - https://yeahgic.com/pge_PrivacyStack.htm

About

HAKI

Features
Read full description

HakiKamoji brings Japanese-style kaomoji to life with full‑color customization and seamless sharing. - Browse dozens of themed packs, from cute and playful to cool and edgy - Pick any kaomoji and instantly adjust its color, size and style - Tap to favorite your top picks and access them in one place - Copy to clipboard or share directly into messages, social apps, email, and more

Screenshots

Stack Trainer4 screens
HAKI4 screens

Verdict

The call

The clearest difference is price: HAKI at Free against Stack Trainer's $3.99. Stack Trainer's advantage is update cadence (every 3 months vs every 6 months) and iOS requirement (15.6 vs 18.5). On ads, in-app purchases 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

HAKI is free to download; Stack Trainer costs $3.99 up front. Stack Trainer sells 2 in-app purchases, starting at $1.99 per 3 months and HAKI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stack Trainer ships an update every 3 months, HAKI every 6 months. Both last shipped on September 20, 2026.

Scorecard3 real differences · 7 level
Stack Trainer versus HAKI: the parameters behind the verdict, then further details
ParameterStack TrainerHAKI
Price$3.99Free — better
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.5
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperRalph Cos泉州丰泽哈基科技有限公司

In-app purchases

2 purchases

Stack Trainer

Subscriptions2
  • 3 Months Subscription7 Days trial$1.993 Months
  • Annual Subscription$2.991 Year
1 purchases

HAKI

One-time1
  • HAKI Kamoji PRO$1.99

Questions

Is Stack Trainer free?
Stack Trainer costs $3.99, and also offers in-app purchases.
Is HAKI free?
HAKI is free to download, with in-app purchases available.
Do Stack Trainer or HAKI have ads?
Neither Stack Trainer nor HAKI shows ads.
Which is updated more often, Stack Trainer or HAKI?
Stack Trainer ships an update every 3 months, and HAKI every 6 months. Most recently, Stack Trainer was updated on September 20, 2026 and HAKI on September 20, 2026.

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