# 超シンプル電圧降下計算 vs VOLTsボルツ・電工システム屋計算・現場便利ツール

The clearest difference is iOS requirement: VOLTsボルツ・電工システム屋計算・現場便利ツール at 16.6 against 超シンプル電圧降下計算's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 超シンプル電圧降下計算 sells 1 one-off in-app purchase and VOLTsボルツ・電工システム屋計算・現場便利ツール sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 超シンプル電圧降下計算 | VOLTsボルツ・電工システム屋計算・現場便利ツール |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Daily | Daily |
| Size | 6 MB | 9 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SUMMERBANANA](https://appshunter.io/developer/1722829517) | [TAKAO OGASAWARA](https://appshunter.io/developer/1895349758) |

## What reviewers say

### 超シンプル電圧降下計算

[App page](https://appshunter.io/ios/app/id6760455127)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $1.99 | one-time |


### VOLTsボルツ・電工システム屋計算・現場便利ツール

[App page](https://appshunter.io/ios/app/volts/id6767616532)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $3.99 | one-time |


## Frequently asked questions

### Is 超シンプル電圧降下計算 free?

超シンプル電圧降下計算 is free to download, with in-app purchases available.

### Is VOLTsボルツ・電工システム屋計算・現場便利ツール free?

VOLTsボルツ・電工システム屋計算・現場便利ツール is free to download, with in-app purchases available.

### Do 超シンプル電圧降下計算 or VOLTsボルツ・電工システム屋計算・現場便利ツール have ads?

Both 超シンプル電圧降下計算 and VOLTsボルツ・電工システム屋計算・現場便利ツール show ads.

### Which is updated more often, 超シンプル電圧降下計算 or VOLTsボルツ・電工システム屋計算・現場便利ツール?

超シンプル電圧降下計算 ships an update daily, and VOLTsボルツ・電工システム屋計算・現場便利ツール daily. Most recently, 超シンプル電圧降下計算 was updated on October 28, 2026 and VOLTsボルツ・電工システム屋計算・現場便利ツール on November 5, 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.*