# Ohm's Law Calculator vs resistor code calculator+

The clearest difference is in-app purchases: resistor code calculator+ at none against Ohm's Law Calculator's 1. resistor code calculator+ also leads on update cadence (every 3 weeks vs every 17 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Ohm's Law Calculator sells 1 one-off in-app purchase. resistor code calculator+ asks for nothing beyond the download.

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

Ohm's Law Calculator ships an update every 17 months, resistor code calculator+ every 3 weeks. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ohm's Law Calculator | resistor code calculator+ |
| --- | --- | --- |
| 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/resistor-code-calculator-plus/id6741751785/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [佳 黄](https://appshunter.io/developer/513202662) |

## 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 |


### resistor code calculator+

[App page](https://appshunter.io/ios/app/resistor-code-calculator-plus/id6741751785)

**In-app purchases:** none


## Frequently asked questions

### Is Ohm's Law Calculator free?

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

### Is resistor code calculator+ free?

resistor code calculator+ is free to download, with no in-app purchases.

### Which has better reviews, Ohm's Law Calculator or resistor code calculator+?

Ohm's Law Calculator and resistor code calculator+ are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Ohm's Law Calculator or resistor code calculator+ have ads?

Neither Ohm's Law Calculator nor resistor code calculator+ shows ads.

### Which is updated more often, Ohm's Law Calculator or resistor code calculator+?

Ohm's Law Calculator ships an update every 17 months, and resistor code calculator+ every 3 weeks. Most recently, Ohm's Law Calculator was updated on October 5, 2026 and resistor code calculator+ on October 24, 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.*