# 日本産科婦人科学会 公式アプリ「JSOG」 vs JDDW

日本産科婦人科学会 公式アプリ「JSOG」 and JDDW 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.

日本産科婦人科学会 公式アプリ「JSOG」 ships an update every 11 months, JDDW every 12 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 日本産科婦人科学会 公式アプリ「JSOG」 | JDDW |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 12 months |
| Size | 8 MB | 8 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Japan Society of Obstetrics and Gynecology](https://appshunter.io/developer/1362422765) | [JAPAN DIGESTIVE DISEASE WEEK](https://appshunter.io/developer/1436813443) |

## What reviewers say

### 日本産科婦人科学会 公式アプリ「JSOG」

[App page](https://appshunter.io/ios/app/jsog/id1362422766)

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

**In-app purchases:** none


### JDDW

[App page](https://appshunter.io/ios/app/jddw-congress-app/id1436813444)

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

**In-app purchases:** none


## Frequently asked questions

### Is 日本産科婦人科学会 公式アプリ「JSOG」 free?

日本産科婦人科学会 公式アプリ「JSOG」 is free to download, with no in-app purchases.

### Is JDDW free?

JDDW is free to download, with no in-app purchases.

### Do 日本産科婦人科学会 公式アプリ「JSOG」 or JDDW have ads?

Neither 日本産科婦人科学会 公式アプリ「JSOG」 nor JDDW shows ads.

### Which is updated more often, 日本産科婦人科学会 公式アプリ「JSOG」 or JDDW?

日本産科婦人科学会 公式アプリ「JSOG」 ships an update every 11 months, and JDDW every 12 months. Most recently, 日本産科婦人科学会 公式アプリ「JSOG」 was updated on November 6, 2026 and JDDW on November 11, 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.*