# 【済生堂】 vs slope field 公式アプリ

【済生堂】 and slope field 公式アプリ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

【済生堂】 ships an update every 39 months, slope field 公式アプリ every 38 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 【済生堂】 | slope field 公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 38 months** |
| Size | 35 MB | 34 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASAE MATSUMURA](https://appshunter.io/developer/1584968645) | [Chika Matsui](https://appshunter.io/developer/1596386074) |

## What reviewers say

### 【済生堂】

[App page](https://appshunter.io/ios/app/id1584968643)

**In-app purchases:** none


### slope field 公式アプリ

[App page](https://appshunter.io/ios/app/slope-field/id1596386072)

**In-app purchases:** none


## Frequently asked questions

### Is 【済生堂】 free?

【済生堂】 is free to download, with no in-app purchases.

### Is slope field 公式アプリ free?

slope field 公式アプリ is free to download, with no in-app purchases.

### Do 【済生堂】 or slope field 公式アプリ have ads?

Neither 【済生堂】 nor slope field 公式アプリ shows ads.

### Which is updated more often, 【済生堂】 or slope field 公式アプリ?

【済生堂】 ships an update every 39 months, and slope field 公式アプリ every 38 months. Most recently, 【済生堂】 was updated on November 3, 2026 and slope field 公式アプリ on November 3, 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.*