積分ますたー vs Calculus Gacha!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
積分ますたー
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高校数学Ⅲレベルの積分問題を徹底的に練習するアプリです。 【特徴】 ・不定積分・定積分の問題をランダムに出題。ひたすらシャッフルして解こう ・手書きで解答を保存でき、計算過程をいつでも見返せます ・「○」「△」「×」で直近3回分の学習履歴を記録。苦手問題がひと目でわかる ・出題パターンを網羅。全問マスターすれば難関理系大学の入試も怖くない 【プレミアムプラン(買い切り)】 ・手書き解答を全問に無制限保存 ・「解答みる」を毎日何度でも使える ・ワークシートをPDFで出力できる ・サブスクなし、買い切り ・アップデートで増える問題も永久無料 【無料で使えること】 ・全問題のシャッフル練習 ・解答の閲覧(1日5回まで) ・手書き保存(10問まで) ・学習履歴の記録 【アプリの使い方】 設定 ホーム画面の左上の歯車アイコンを押下するとシャッフルする問題の設定ができます。
Calculus Gacha!
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● 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
Verdict
The clearest difference is update cadence: Calculus Gacha! at every 2 days against 積分ますたー's every 2 weeks. Calculus Gacha! also leads on iOS requirement (13.0 vs 26.0). On price, 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
Both are free to download. 積分ますたー sells 1 one-off in-app purchase and Calculus Gacha! sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
積分ますたー ships an update every 2 weeks, Calculus Gacha! every 2 days. The most recent releases landed on September 15, 2026 and August 16, 2026 respectively.
| Parameter | 積分ますたー | Calculus Gacha! |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 106 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Jun Yamashita | Shunsuke Nakamura |
In-app purchases
積分ますたー
- Premium Unlock$3.99
Calculus Gacha!
- 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









