# 統計DS発展対策 vs Java SE 21 Developer

The clearest difference is price: Java SE 21 Developer at Free against 統計DS発展対策's $4.99. 統計DS発展対策's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs weekly). On ads, device support and iOS requirement there is nothing between them.

Java SE 21 Developer is free to download; 統計DS発展対策 costs $4.99 up front. Java SE 21 Developer sells 1 one-off in-app purchase. 統計DS発展対策 asks for nothing beyond the download.

統計DS発展対策 ships an update every 3 days, Java SE 21 Developer weekly. Both last shipped on November 13, 2026.

## The numbers

| Metric | 統計DS発展対策 | Java SE 21 Developer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Size | 34 MB | 233 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [satoshi yoshida](https://appshunter.io/developer/1873856165) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### 統計DS発展対策

[App page](https://appshunter.io/ios/app/ds/id6769846201)

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

**In-app purchases:** none


### Java SE 21 Developer

[App page](https://appshunter.io/ios/app/java-se-21-developer/id6785110070)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is 統計DS発展対策 free?

統計DS発展対策 costs $4.99, with no in-app purchases.

### Is Java SE 21 Developer free?

Java SE 21 Developer is free to download, with in-app purchases available.

### Do 統計DS発展対策 or Java SE 21 Developer have ads?

Neither 統計DS発展対策 nor Java SE 21 Developer shows ads.

### Which is updated more often, 統計DS発展対策 or Java SE 21 Developer?

統計DS発展対策 ships an update every 3 days, and Java SE 21 Developer weekly. Most recently, 統計DS発展対策 was updated on November 13, 2026 and Java SE 21 Developer on November 13, 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.*