# 回路計算機 vs Electronics docs & calculators

The clearest difference is price: 回路計算機 at $1.99 against Electronics docs & calculators's $4.99. Electronics docs & calculators's advantage is update cadence (every 6 months vs every 15 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

回路計算機 costs $1.99 and Electronics docs & calculators $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

回路計算機 ships an update every 15 months, Electronics docs & calculators every 6 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 回路計算機 | Electronics docs & calculators |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/electronics-docs-and-calculators/id1581668963/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 months** |
| Monetization | — | Paid |
| Size | 15 MB | 49 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yoshiaki Onishi](https://appshunter.io/developer/852893746) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### 回路計算機

[App page](https://appshunter.io/ios/app/id1081762110)

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

**In-app purchases:** none


### Electronics docs & calculators

[App page](https://appshunter.io/ios/app/electronics-docs-and-calculators/id1581668963)

This app serves as a pocket electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding engineers and hobbyists in their designs.

**Highlights:** Electronic component reference, Electronic circuit reference, Filter calculation tools, Inductor winding calculators, Resistor and capacitor calculations, Ohm's Law calculator, AC/DC power calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is 回路計算機 free?

回路計算機 costs $1.99, with no in-app purchases.

### Is Electronics docs & calculators free?

Electronics docs & calculators costs $4.99, with no in-app purchases.

### Do 回路計算機 or Electronics docs & calculators have ads?

Neither 回路計算機 nor Electronics docs & calculators shows ads.

### Which is updated more often, 回路計算機 or Electronics docs & calculators?

回路計算機 ships an update every 15 months, and Electronics docs & calculators every 6 months. Most recently, 回路計算機 was updated on September 21, 2026 and Electronics docs & calculators on September 9, 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.*