# Electronics Tools & Calc Pro vs Ristmik CAD

The clearest difference is price: Ristmik CAD at Free against Electronics Tools & Calc Pro's $4.99. Ristmik CAD also leads on update cadence (every 3 days vs every 5 months) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Ristmik CAD is free to download; Electronics Tools & Calc Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electronics Tools & Calc Pro ships an update every 5 months, Ristmik CAD every 3 days. Both last shipped on October 27, 2026.

## The numbers

| Metric | Electronics Tools & Calc Pro | Ristmik CAD |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 58 MB | 121 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anas Abubakar](https://appshunter.io/developer/1581534101) | [Ristmik LLC](https://appshunter.io/developer/1759177742) |

## What reviewers say

### 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


### Ristmik CAD

[App page](https://appshunter.io/ios/app/ristmik-cad/id6572303460)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electronics Tools & Calc Pro free?

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

### Is Ristmik CAD free?

Ristmik CAD is free to download, with no in-app purchases.

### Do Electronics Tools & Calc Pro or Ristmik CAD have ads?

Neither Electronics Tools & Calc Pro nor Ristmik CAD shows ads.

### Which is updated more often, Electronics Tools & Calc Pro or Ristmik CAD?

Electronics Tools & Calc Pro ships an update every 5 months, and Ristmik CAD every 3 days. Most recently, Electronics Tools & Calc Pro was updated on October 27, 2026 and Ristmik CAD on October 27, 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.*