Comparison

BlackJack8 vs SEED by じゃんけんポーカー

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

SEED by じゃんけんポーカー

Features
Read full description

SEED by じゃんけんポーカー は、 「ポーカーを楽しみながら、自然と上達できる」ことをコンセプトにした アミューズメントポーカー店 SEED の公式アプリです。 本アプリでは、SEEDでの来店体験をよりスムーズに、より快適にするための機能を提供します。 ・SEED店舗に関する情報の確認 ・来店時に必要な各種案内 ・店内での注文をスムーズに行うための機能 ・店舗体験をサポートする各種機能 SEEDは、勝ち負けだけで終わらず、 「成長の過程そのものを楽しめるポーカー体験」を大切にしています。 店舗とアプリを通じて、 新しいポーカーの楽しみ方を体験してください。

Screenshots

BlackJack84 screens
SEED by じゃんけんポーカー4 screens

Verdict

The call

The clearest difference is in-app purchases: SEED by じゃんけんポーカー at none against BlackJack8's 1. On price, 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

Both are free to download. BlackJack8 sells 1 in-app purchase, starting at $29.99 per month. SEED by じゃんけんポーカー asks for nothing beyond the download.

UpkeepUpdate frequency

BlackJack8 ships an update every 8 days, SEED by じゃんけんポーカー every 9 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 7 level
BlackJack8 versus SEED by じゃんけんポーカー: the parameters behind the verdict, then further details
ParameterBlackJack8SEED by じゃんけんポーカー
PriceFreeFree
Positive reviews66.7% of reviews—
Update frequencyEvery 8 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size61 MB78 MB
Age rating4+4+
DeveloperANYONE INC.1900 Co.

In-app purchases

1 purchases

BlackJack8

Subscriptions1
  • Subscription(1 month)1 Month trial$29.991 Month
None

SEED by じゃんけんポーカー

No in-app purchases

Questions

Is BlackJack8 free?
BlackJack8 is free to download, with in-app purchases available.
Is SEED by じゃんけんポーカー free?
SEED by じゃんけんポーカー is free to download, with no in-app purchases.
Do BlackJack8 or SEED by じゃんけんポーカー have ads?
Neither BlackJack8 nor SEED by じゃんけんポーカー shows ads.
Which is updated more often, BlackJack8 or SEED by じゃんけんポーカー?
BlackJack8 ships an update every 8 days, and SEED by じゃんけんポーカー every 9 days. Most recently, BlackJack8 was updated on October 15, 2026 and SEED by じゃんけんポーカー on October 11, 2026.

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