# NDI学習 vs 溶接管理技術者2級対策

The clearest difference is device support: NDI学習 at 2 against 溶接管理技術者2級対策's —. 溶接管理技術者2級対策's advantage is iOS requirement (15.1 vs 17). On in-app purchases there is nothing between them.

## The numbers

| Metric | NDI学習 | 溶接管理技術者2級対策 |
| --- | --- | --- |
| Price | **Free** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 36 MB |
| Requires iOS | 17 | **15.1** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [KAZUHITO SHINOZUKA](https://appshunter.io/developer/1562330139) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### NDI学習

[App page](https://appshunter.io/ios/app/ndi/id1562330137)

Practice questions for the JIS Z 2305 non-destructive testing technician exam (Level 2). Covers ultrasonic, penetrant, magnetic particle, radiographic, and eddy current testing. All learning features and questions are available without in-app purchases.

**Highlights:** Non-destructive testing exam practice, Covers multiple NDT methods, Detailed explanations, All content accessible for free, Ad removal in-app purchase

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

**In-app purchases:** none


### 溶接管理技術者2級対策

[App page](https://appshunter.io/ios/app/2/id6769263501)

**In-app purchases:** none


## Frequently asked questions

### Is NDI学習 free?

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

### Is 溶接管理技術者2級対策 free?

Pricing for 溶接管理技術者2級対策 is not currently listed on the App Store.

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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.*