# ISDR Test vs Electronics Circuit Calc Pro

The clearest difference is price: ISDR Test at Free against Electronics Circuit Calc Pro's $4.99. ISDR Test also leads on iOS requirement (11.2 vs 15.0). Electronics Circuit Calc Pro's advantage is device support. On in-app purchases there is nothing between them.

ISDR Test is free to download; Electronics Circuit Calc Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ISDR Test | Electronics Circuit Calc Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/electronics-circuit-calc-pro/id1583600520/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Paid |
| Size | 13 MB | 31 MB |
| Requires iOS | **11.2** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artur Rybak](https://appshunter.io/developer/1062686853) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### ISDR Test

[App page](https://appshunter.io/ios/app/isdr-test/id1366658157)

**In-app purchases:** none


### Electronics Circuit Calc Pro

[App page](https://appshunter.io/ios/app/electronics-circuit-calc-pro/id1583600520)

This app provides a comprehensive suite of calculators and design tools for electronic engineering projects. It assists with circuit design, filter analysis, and calculations for various components like resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic tasks.

**Highlights:** Circuit design tools, Filter design with graph plotting, Resistor, capacitor, inductor design, Amplifier calculations, Ohm's Law calculator, 555 timer calculator, PCB trace width calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is ISDR Test free?

ISDR Test is free to download, with no in-app purchases.

### Is Electronics Circuit Calc Pro free?

Electronics Circuit Calc Pro costs $4.99, with no in-app purchases.

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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.*