# Ohm's Law Calculator vs Electrical Engineering Toolkit

The clearest difference is iOS requirement: Ohm's Law Calculator at 13.0 against Electrical Engineering Toolkit's 16.2. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Ohm's Law Calculator sells 1 one-off in-app purchase and Electrical Engineering Toolkit sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Ohm's Law Calculator against 5.0 for Electrical Engineering Toolkit. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Ohm's Law Calculator ships an update every 17 months, Electrical Engineering Toolkit every 9 months. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ohm's Law Calculator | Electrical Engineering Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/ohms-law-calculator/id1518919778/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/electrical-engineering-toolkit/id6474202026/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 9 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1 MB | 12 MB |
| Requires iOS | **13.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## What reviewers say

### Ohm's Law Calculator

[App page](https://appshunter.io/ios/app/ohms-law-calculator/id1518919778)

Easily calculate electrical values like voltage, current, resistance, and power. Input any two known values, and the app will automatically compute the rest. Supports various units for precise calculations.

**Highlights:** Calculate Voltage, Current, Resistance, Power, Automatic calculation of remaining values, Supports multiple units (kV, V, mV, A, mA, Ω, kΩ, MΩ, W, kW, MW, hp, BTU/hr), User-friendly interface, Contact developer for requests

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### Electrical Engineering Toolkit

[App page](https://appshunter.io/ios/app/electrical-engineering-toolkit/id6474202026)

This comprehensive toolkit offers a wide range of calculators for electronics design, PCB layout, and RF work. Instantly check formulas, verify lab results, and estimate component values for various engineering tasks.

**Highlights:** Ohm's Law calculator, Resistor color code lookup, PCB impedance calculation, RF power and dB converters, Electromechanical calculations, Physics and foundation formulas

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $0.99 | per month |
| Full version / year | $3.99 | per year |
| Support project, remove ADS | $5.99 | one-time |


## Frequently asked questions

### Is Ohm's Law Calculator free?

Ohm's Law Calculator is free to download, with in-app purchases available.

### Is Electrical Engineering Toolkit free?

Electrical Engineering Toolkit is free to download, with in-app purchases available.

### Which has better reviews, Ohm's Law Calculator or Electrical Engineering Toolkit?

Ohm's Law Calculator and Electrical Engineering Toolkit are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Ohm's Law Calculator or Electrical Engineering Toolkit have ads?

Neither Ohm's Law Calculator nor Electrical Engineering Toolkit shows ads.

### Which is updated more often, Ohm's Law Calculator or Electrical Engineering Toolkit?

Ohm's Law Calculator ships an update every 17 months, and Electrical Engineering Toolkit every 9 months. Most recently, Ohm's Law Calculator was updated on October 5, 2026 and Electrical Engineering Toolkit on October 25, 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.*