Comparison

積分ガチャ vs Calculus Gacha!

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

Head to head
About

積分ガチャ

Features
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積分ガチャとは,おいしい数学サイト内で2021年5月19日にリリースした,高校数学の数学Ⅲの積分計算をランダムで5題出題するサービスで,web版の機能を受け継ぎ,さらに強化されたアプリ版になります(iPhone,iPad両対応). 当アプリ版には,web版に加え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157716720通り(web版は22604400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積分のページへのリンク(数学Ⅲ積分未習者でも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積分できます) 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「積分ガチャ」でGoogle検索しておいしい数学内にあるweb版を無料でご利用し,体験してみてください. X(Twitter)で「積分ガチャ」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

Calculus Gacha!

Features
Read full description

● Fun, Gacha-Style Learning Tackle randomly selected questions and instantly check explanations and formulas as you go. ●AI Tutor Stuck on a problem? Ask the built-in AI tutor for a hint, a solving strategy, just the first step, or an explanation using a simpler similar problem — all tailored to the question you're working on. ● Learn by Topic Integration, limits, factorization, indeterminate equations, recurrence relations, differential equations, and more. Each topic is organized into categories so you can focus on exactly what you want to study. ● Helpful Support Features Hints, scratch paper, a timer, and other tools make learning smoother and more efficient. ● Automatic Study Tracking All solved questions are saved on your device, allowing you to review your progress and understanding anytime. ● Smart Question Selection Based on your learning history, the app prioritizes topics you struggle with, helping you learn more efficiently. --------------------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/calculus-gacha-joy-math-27ae4f0afd3b80cb9754ce138cbc80ca?source=copy_link

Screenshots

積分ガチャ4 screens
Calculus Gacha!4 screens

Verdict

The call

The clearest difference is price: Calculus Gacha! at Free against 積分ガチャ's $5.99. Calculus Gacha! also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). 積分ガチャ's advantage is in-app purchases (none vs 3). On 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

Calculus Gacha! is free to download; 積分ガチャ costs $5.99 up front. Calculus Gacha! sells 3 one-off in-app purchases. 積分ガチャ asks for nothing beyond the download.

UpkeepUpdate frequency

積分ガチャ ships an update every 3 weeks, Calculus Gacha! every 2 days. The most recent releases landed on September 17, 2026 and August 16, 2026 respectively.

Scorecard5 real differences · 2 level
積分ガチャ versus Calculus Gacha!: the parameters behind the verdict, then further details
Parameter積分ガチャCalculus Gacha!
Price$5.99Free — better
Positive reviews72.2% of reviews
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size15 MB81 MB
Age rating4+4+
DeveloperAkira HiraokaShunsuke Nakamura

In-app purchases

None

積分ガチャ

No in-app purchases

3 purchases

Calculus Gacha!

One-time3
  • 不定方程式ガチャ利用オプション$0.99
  • AI Tutor Plus(500)$2.99
  • 履歴管理機能オプション$2.99

Questions

Is 積分ガチャ free?
積分ガチャ costs $5.99, with no in-app purchases.
Is Calculus Gacha! free?
Calculus Gacha! is free to download, with in-app purchases available.
Do 積分ガチャ or Calculus Gacha! have ads?
積分ガチャ shows ads; Calculus Gacha! does not.
Which is updated more often, 積分ガチャ or Calculus Gacha!?
積分ガチャ ships an update every 3 weeks, and Calculus Gacha! every 2 days. Most recently, 積分ガチャ was updated on September 17, 2026 and Calculus Gacha! on August 16, 2026.

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