A vs Calculus Gacha!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
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This app uses numerous animations and test questions to explain high school level physics. It aims to give a sensory understanding of physics. It contains a lot of content, such as a list of formulas and explanations of the basics of mathematics. It consists of the following contents. 1. Topics --- The basic principles of physics are explained through animation. 2. Practical Explanation --- The behavior of cubes, springs, rigid bodies, etc. is displayed through animation. Detailed explanations, graphs, various values such as velocity and displacement, and formulas are displayed. 3. Test --- Simple test questions are given. If you have difficulty doing the math in your head, you can use notes to calculate. 4. Formula display --- Formulas can be displayed in a list. Simple explanations are also provided. Please try. This app will show ads, but if you buy it for about $ 5, the ads will not show. The price fluctuates in accordance with the exchange rate. *Currently, only mechanics is supported, but we plan to add more fields in the future. We also plan to add and change animations and tests. If you have any comments or find any errors, please let us know in the rating section. ///////////////////////////////////////////////// Current main contents ・Mechanics --- Equation of motion, momentum, impulse, mechanical energy, work, dynamic friction, static friction, law of inertia, simple harmonic motion, simple pendulum, moment of force, center of gravity
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 3 days against A's every 2 weeks. Calculus Gacha! also leads on iOS requirement (15.0 vs 18.0). 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. A sells 1 one-off in-app purchase and Calculus Gacha! sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
A ships an update every 2 weeks, Calculus Gacha! every 3 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | A | Calculus Gacha! |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 271 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Ogumo Co., Ltd. | Shunsuke Nakamura |
In-app purchases
A
- Hide ads$5.99
Calculus Gacha!
- 不定方程式ガチャ利用オプション$0.99
- AI Tutor Pass$2.99
- AI Tutor Plus(500)$2.99
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- 履歴管理機能オプション$2.99









