BlackJack8 vs Spatial Disk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlackJack8
Learn and master card counting strategies for blackjack. This app offers three distinct counting systems and data analysis tools to help you predict remaining cards and optimize your gameplay. It's designed for both beginners and advanced players seeking to improve their decision-making at the table.
- Card counting strategy training
- Three counting systems (Hi-Lo, Hi Opt II, Zen)
- Data analysis for decision making
- Predict remaining cards
- EXP (expected value) calculation
- Beginner and advanced modes
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The number of cards remaining can be predicted by inputting cards. Players can predict the number of cards remaining by inputting cards, and deriving the best strategy by themselves. Three counting systems are introduced. HI AND LOW(FOR GENERAL BEGINNERS) HI OPT II(FOR ADVANCED AND CAUTIOUS PLAYERS) ZEN(FOR ADVANCED PLAYERS) Data analysis to determine when to make a decision.The number is set to be added to the EXP (expected value) of the method, which is considered independently. The higher the system count, the better it is for the player.g can be predicted by inputting cards.Players can predict the number of cards remainingby inputting cards, and deriving the best strategy by themselves.Three counting systems are introduced.HI AND LOW(FOR GENERAL BEGINNERS)HI OPT II(FOR ADVANCED AND CAUTIOUS PLAYERS)ZEN(FOR ADVANCED PLAYERS)Data analysis to determine when to make a decision.The number is set to be added to the EXP(expected value) of the method, which is considered independently. The higher the system count, thebetter it is for the player. ※You will need to purchase a subscription to access this app. Term of use => https://oncasi.win/terms-and-conditions/
Spatial Disk
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【What is a Spatial Disk?】 A Spatial Disk is a new visual experience service that converts past VR and 3D live concerts into high-quality 3D video, making it easy to enjoy on your smartphone. Replay past live concerts anytime, on your favorite device. You can re-experience immersive live performances anytime on your smartphone. ◆ Experience the live “as a space” A three-dimensional and immersive live experience that flat video cannot provide. Relive the excitement as if you were at the live venue once again. ◆ A new way to “own” live concerts digitally, like Blu-ray. ◆ Smooth playback even for heavy 3D lives Because the content is video, even 3D lives play back stably. Enjoy live performances without stress. 【Bug Reports / Inquiries】 Please contact us through the official website’s inquiry form. https://gugenka.jp/contact/ Publisher ©Gugenka®
Screenshots
Verdict
The clearest difference is in-app purchases: Spatial Disk at none against BlackJack8's 1. BlackJack8's advantage is update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement 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
Both are free to download. BlackJack8 sells 1 in-app purchase, starting at $29.99 per month. Spatial Disk asks for nothing beyond the download.
BlackJack8 ships an update every 8 days, Spatial Disk every 2 months. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.
| Parameter | BlackJack8 | Spatial Disk |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 8 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 61 MB | 152 MB |
| Age rating | 4+ | 4+ |
| Developer | ANYONE INC. | Gugenka Inc. |
In-app purchases
BlackJack8
- Subscription(1 month)1 Month trial$29.991 Month
Spatial Disk
No in-app purchases
Questions
Is BlackJack8 free?
Is Spatial Disk free?
Do BlackJack8 or Spatial Disk have ads?
Which is updated more often, BlackJack8 or Spatial Disk?
Other comparisons
