Comparison

極限ガチャ vs ProbabilityPlayer

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

Head to head
About

極限ガチャ

Features
Read full description

極限ガチャとは,おいしい数学サイト内から発祥した高校数学の数学Ⅲの極限計算をランダムで5題出題するサービスです(iPhone,iPad両対応). 当アプリ版には,サイト内のweb版極限ガチャと比較し以下の特徴があります. 1.Web版よりも問題数増加.ガチャの組み合わせは現在23528232通り(web版は3759210通り) 2.ガチャ回し放題,時間制限無し 3.上級のみスイッチ((5)で必ず上級が出るようにできます) 4.追加情報記載(出典や問題の背景となる関連情報が記載されています) 5.タイマー搭載(ガチャを回してから100分まで計測可能で,タイムアタックにご利用できます) 6.新出問題判定機能(新出問題か既出問題かの判別ができます) 7.マーク機能(正解した問題等にタップすることでマーキングすることができます) 8.広告無し 9.初級〜上級の排出問題情報(問題と解答一覧付属.問題のTeXファイル付き) 10.アプリ向けに改善されたおいしい数学極限のページへのリンク(数学Ⅲ極限未習者でも1から勉強できます) 11.計算用紙機能(Apple純正のPencilKit使用でアプリ内で遅延なく筆記可能,特にiPadでアプリ内で快適に計算できます) 12.ダークモード対応(端末に合わせて自動でライトモードとダークモードの切り替えをします) 初めての方はまず「極限ガチャ」でGoogle検索しておいしい数学内にあるweb版やその他のガチャシリーズを無料でご利用し,体験してみてください. X(Twitter)で「漸化式ガチャ」「積分ガチャ」「極限ガチャ」でも是非検索ください. 1度の購入でiPhone,iPad両方でダウンロードして使えるユニバーサルアプリです. おいしい数学X(Twitter)アカウント @oicmath にて,随時開発の情報発信や質問対応等行っております. ※最新のiOS,iPadOSにアップデートできない端末は動作保証できませんのでご注意ください. ※当ページ下部の,デベロッパWebサイトのリンクからもアプリの詳細が確認できます.

About

ProbabilityPlayer

Practice probability problems for the Kyotsu Test, a common Japanese university entrance exam. This app focuses on mathematical probability questions and includes diagrams to aid understanding. It is designed to help students prepare for this specific academic assessment.

Highlights
  • Probability problem practice
  • Kyotsu Test focus
  • Mathematical probability
  • Diagrams included
  • University entrance exam prep
Features
Read full description

This is an app for Kyotsu Test, the test widely used in Japanese university entrance exams, dealing especially with probability problems in mathematics. I have applied to the rights holder to use the test.

Screenshots

極限ガチャ4 screens
ProbabilityPlayer4 screens

Verdict

The call

The clearest difference is price: ProbabilityPlayer at Free against 極限ガチャ's $5.99. ProbabilityPlayer also leads on review sentiment (100% vs 75%). 極限ガチャ's advantage is in-app purchases (none vs 1). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

ProbabilityPlayer is free to download; 極限ガチャ costs $5.99 up front. ProbabilityPlayer sells 1 one-off in-app purchase. 極限ガチャ asks for nothing beyond the download.

UpkeepUpdate frequency

極限ガチャ ships an update every 3 weeks, ProbabilityPlayer monthly. The most recent releases landed on August 21, 2026 and August 27, 2026 respectively.

Scorecard3 real differences · 5 level
極限ガチャ versus ProbabilityPlayer: the parameters behind the verdict, then further details
Parameter極限ガチャProbabilityPlayer
Price$5.99Free — better
Positive reviews75.0% of reviews100.0% of reviews — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size14 MB9 MB
Age rating4+4+
DeveloperAkira HiraokaMotonari Hibi

Customer experience

極限ガチャ

Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

ProbabilityPlayer

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

極限ガチャ

No in-app purchases

1 purchases

ProbabilityPlayer

One-time1
  • Premium$1.99

Questions

Is 極限ガチャ free?
極限ガチャ costs $5.99, with no in-app purchases.
Is ProbabilityPlayer free?
ProbabilityPlayer is free to download, with in-app purchases available.
Do 極限ガチャ or ProbabilityPlayer have ads?
Neither 極限ガチャ nor ProbabilityPlayer shows ads.
Which is updated more often, 極限ガチャ or ProbabilityPlayer?
極限ガチャ ships an update every 3 weeks, and ProbabilityPlayer monthly. Most recently, 極限ガチャ was updated on August 21, 2026 and ProbabilityPlayer on August 27, 2026.

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