# Houji vs 電工アプリ

The clearest difference is update cadence: 電工アプリ at monthly against Houji's every 7 months. Houji's advantage is price ($1.99 vs $4.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Houji costs $1.99 and 電工アプリ $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Houji ships an update every 7 months, 電工アプリ monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Houji | 電工アプリ |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | — | Paid |
| Size | 4 MB | 74 MB |
| Requires iOS | **16.1** | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [her0.jp](https://appshunter.io/developer/482918302) | [kohei morioka](https://appshunter.io/developer/1576628730) |

## What reviewers say

### Houji

[App page](https://appshunter.io/ios/app/houji/id482918299)

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

**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 Houji free?

Houji costs $1.99, 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 Houji or 電工アプリ have ads?

Neither Houji nor 電工アプリ shows ads.

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

Houji ships an update every 7 months, and 電工アプリ monthly. Most recently, Houji was updated on November 6, 2026 and 電工アプリ on October 30, 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.*