# Resistance Calculator vs Resistor Code Calculators

The clearest difference is in-app purchases: Resistor Code Calculators at none against Resistance Calculator's 3. Resistor Code Calculators also leads on iOS requirement (13.4 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Resistance Calculator sells 3 in-app purchases, starting at $0.49 per 7 days. Resistor Code Calculators asks for nothing beyond the download.

Resistance Calculator ships an update every 5 months, Resistor Code Calculators every 7 months. The most recent releases landed on November 3, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Resistance Calculator | Resistor Code Calculators |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (9 ratings)](https://appshunter.io/ios/app/resistance-calculator-in-ohms/id1462608828/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 6 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TROTHMATRIX](https://appshunter.io/developer/1451285427) | [Kanta Kikubo](https://appshunter.io/developer/1450598215) |

## What reviewers say

### Resistance Calculator

[App page](https://appshunter.io/ios/app/resistance-calculator-in-ohms/id1462608828)

Instantly calculate resistor resistance values from color codes (3-6 bands). Includes Ohm's Law and Watt's Law calculators for voltage, current, and power. Ideal for electronics enthusiasts and professionals.

**Highlights:** Decode resistor color codes, Supports 3-6 band resistors, Ohm's Law calculator, Watt's Law calculator, Calculate V, I, R, and P, Light and Dark themes

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.49 | per 7 days |
| Monthly Premium Subscription | $1.49 | per month |
| Purchase Premium Version | $8.99 | one-time |


### Resistor Code Calculators

[App page](https://appshunter.io/ios/app/resistor-code-calculators/id1465336419)

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

**In-app purchases:** none


## Frequently asked questions

### Is Resistance Calculator free?

Resistance Calculator is free to download, with in-app purchases available.

### Is Resistor Code Calculators free?

Resistor Code Calculators is free to download, with no in-app purchases.

### Do Resistance Calculator or Resistor Code Calculators have ads?

Both Resistance Calculator and Resistor Code Calculators show ads.

### Which is updated more often, Resistance Calculator or Resistor Code Calculators?

Resistance Calculator ships an update every 5 months, and Resistor Code Calculators every 7 months. Most recently, Resistance Calculator was updated on November 3, 2026 and Resistor Code Calculators on October 20, 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.*