# BOX加工 vs 電工アプリ

The clearest difference is review sentiment: BOX加工 at 75% against 電工アプリ's 0%. BOX加工 also leads on price (Free vs $4.99) and device support (3 vs 1). 電工アプリ's advantage is ads (none vs shown) and update cadence (monthly vs every 5 months). On in-app purchases there is nothing between them.

BOX加工 is free to download; 電工アプリ costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BOX加工 ships an update every 5 months, 電工アプリ monthly. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BOX加工 | 電工アプリ |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | **Ad-supported** | Paid |
| Size | 4 MB | 74 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Takahiro Ikejima](https://appshunter.io/developer/1528934187) | [kohei morioka](https://appshunter.io/developer/1576628730) |

## What reviewers say

### BOX加工

[App page](https://appshunter.io/ios/app/box/id1528934185)

This app calculates optimal hole sizes for boxes, preventing them from shifting to one side. It provides standard opening sizes for various gauges and allows for custom settings. Designed for precision in box construction.

**Highlights:** Calculates hole sizes to prevent box shifting, Standard opening sizes for G16, G22, G28, G36, Customizable opening size settings, Precision tool for box construction

**In-app purchases:** none


### 電工アプリ

[App page](https://appshunter.io/ios/app/id6748276067)

This app streamlines electrical work by providing essential calculations and selections in one place. It covers voltage drop, cable current capacity, motor ratings, and component sizing, designed for efficiency on the job.

**Highlights:** Voltage drop calculation, Cable allowable current and outer diameter, Motor rated current calculation, Control equipment selection, Conduit and ground wire sizing, Cable tray width selection

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

**In-app purchases:** none


## Frequently asked questions

### Is BOX加工 free?

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

### Is 電工アプリ free?

電工アプリ costs $4.99, with no in-app purchases.

### Do BOX加工 or 電工アプリ have ads?

BOX加工 shows ads; 電工アプリ does not.

### Which is updated more often, BOX加工 or 電工アプリ?

BOX加工 ships an update every 5 months, and 電工アプリ monthly. Most recently, BOX加工 was updated on October 3, 2026 and 電工アプリ on October 25, 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.*