# 回路計算機 vs Electronics Tools & Calc Pro

The clearest difference is price: 回路計算機 at $1.99 against Electronics Tools & Calc Pro's $5.99. 回路計算機 also leads on iOS requirement (13.0 vs 15.0). Electronics Tools & Calc Pro's advantage is review sentiment (67% vs 50%) and update cadence (every 5 months vs every 15 months). On ads, in-app purchases and device support there is nothing between them.

回路計算機 costs $1.99 and Electronics Tools & Calc Pro $5.99 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 Tools & Calc Pro every 5 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 回路計算機 | Electronics Tools & Calc Pro |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/electronics-tools-and-calc-pro/id1581668963/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 months** |
| Monetization | — | Paid |
| Size | 15 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| 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 Tools & Calc Pro

[App page](https://appshunter.io/ios/app/electronics-tools-and-calc-pro/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 Tools & Calc Pro free?

Electronics Tools & Calc Pro costs $5.99, with no in-app purchases.

### Do 回路計算機 or Electronics Tools & Calc Pro have ads?

Neither 回路計算機 nor Electronics Tools & Calc Pro shows ads.

### Which is updated more often, 回路計算機 or Electronics Tools & Calc Pro?

回路計算機 ships an update every 15 months, and Electronics Tools & Calc Pro every 5 months. Most recently, 回路計算機 was updated on November 2, 2026 and Electronics Tools & Calc Pro on November 7, 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.*