# 川島石油 vs ガス溶接,エックス線,揚貨装置,発破技士

The clearest difference is price: 川島石油 at Free against ガス溶接,エックス線,揚貨装置,発破技士's $4.99. ガス溶接,エックス線,揚貨装置,発破技士's advantage is iOS requirement (9.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

川島石油 is free to download; ガス溶接,エックス線,揚貨装置,発破技士 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 川島石油 | ガス溶接,エックス線,揚貨装置,発破技士 |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | — |
| Monetization | — | Paid |
| Size | 85 MB | 89 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [KAWASHIMA OIL CO., LTD.](https://appshunter.io/developer/1484598639) | [hada keiko](https://appshunter.io/developer/1491577277) |

## What reviewers say

### 川島石油

[App page](https://appshunter.io/ios/app/id1484598640)

**In-app purchases:** none


### ガス溶接,エックス線,揚貨装置,発破技士

[App page](https://appshunter.io/ios/app/id1494621282)

This app provides past exam questions for various technical certifications. It focuses on knowledge retention after basic study, offering features like scroll position memory and customizable display options for efficient learning on mobile devices.

**Highlights:** Past exam questions for technical certifications, Knowledge retention focus, Scroll position memory, Customizable display options, Web search integration, Index search

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 川島石油 free?

川島石油 is free to download, with no in-app purchases.

### Is ガス溶接,エックス線,揚貨装置,発破技士 free?

ガス溶接,エックス線,揚貨装置,発破技士 costs $4.99, with no in-app purchases.

### Do 川島石油 or ガス溶接,エックス線,揚貨装置,発破技士 have ads?

Neither 川島石油 nor ガス溶接,エックス線,揚貨装置,発破技士 shows ads.

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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.*