# 日本リウマチ学会 公式アプリ「JCR」 vs Practice Counter

The clearest difference is in-app purchases: 日本リウマチ学会 公式アプリ「JCR」 at none against Practice Counter's 2. 日本リウマチ学会 公式アプリ「JCR」 also leads on iOS requirement (16.0 vs 18.0). Practice Counter's advantage is update cadence (every 6 days vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Practice Counter sells 2 one-off in-app purchases. 日本リウマチ学会 公式アプリ「JCR」 asks for nothing beyond the download.

日本リウマチ学会 公式アプリ「JCR」 ships an update every 10 months, Practice Counter every 6 days. The most recent releases landed on October 8, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 日本リウマチ学会 公式アプリ「JCR」 | Practice Counter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 days** |
| Size | 5 MB | 85 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Japan College of Rheumatology](https://appshunter.io/developer/1716460239) | [Ryuichi Kayashima](https://appshunter.io/developer/6779960612) |

## What reviewers say

### 日本リウマチ学会 公式アプリ「JCR」

[App page](https://appshunter.io/ios/app/jcr/id6472007947)

**Features:** macOS Compatibility

**In-app purchases:** none


### Practice Counter

[App page](https://appshunter.io/ios/app/practice-counter/id6811638315)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 追加パック | $1.99 | one-time |
| Theme Pack 2 | $1.99 | one-time |


## Frequently asked questions

### Is 日本リウマチ学会 公式アプリ「JCR」 free?

日本リウマチ学会 公式アプリ「JCR」 is free to download, with no in-app purchases.

### Is Practice Counter free?

Practice Counter is free to download, with in-app purchases available.

### Do 日本リウマチ学会 公式アプリ「JCR」 or Practice Counter have ads?

Neither 日本リウマチ学会 公式アプリ「JCR」 nor Practice Counter shows ads.

### Which is updated more often, 日本リウマチ学会 公式アプリ「JCR」 or Practice Counter?

日本リウマチ学会 公式アプリ「JCR」 ships an update every 10 months, and Practice Counter every 6 days. Most recently, 日本リウマチ学会 公式アプリ「JCR」 was updated on October 8, 2026 and Practice Counter on October 29, 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.*