# 積分ガチャ vs Calculus Gacha！

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.

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.

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.

## The numbers

| Metric | 積分ガチャ | Calculus Gacha！ |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 15 MB | 81 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Akira Hiraoka](https://appshunter.io/developer/1668714727) | [Shunsuke Nakamura](https://appshunter.io/developer/1828229182) |

## What reviewers say

### 積分ガチャ

[App page](https://appshunter.io/ios/app/id1668714725)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Calculus Gacha！

[App page](https://appshunter.io/ios/app/calculus-gacha/id6753078774)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 不定方程式ガチャ利用オプション | $0.99 | one-time |
| AI Tutor Plus(500) | $2.99 | one-time |
| 履歴管理機能オプション | $2.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*