# Resistor vs Resistor Color Code Calc.

The clearest difference is in-app purchases: Resistor at none against Resistor Color Code Calc.'s 1. Resistor also leads on ratings volume (17 vs 1). Resistor Color Code Calc.'s advantage is iOS requirement (15.6 vs 26.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Resistor Color Code Calc. sells 1 one-off in-app purchase. Resistor asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Resistor against 5.0 for Resistor Color Code Calc.. That said, the two scores are not equally well evidenced: Resistor has 17 ratings behind it against 1, so its average is the more settled of the two.

Resistor ships an update every 9 months, Resistor Color Code Calc. every 5 months. The most recent releases landed on September 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Resistor | Resistor Color Code Calc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (17 ratings)](https://appshunter.io/ios/app/resistor-converter/id6446839759/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/resistor-color-code-calc/id6755287812/reviews)** |
| Number of ratings | **17** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 35 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### Resistor

[App page](https://appshunter.io/ios/app/resistor-converter/id6446839759)

Quickly calculate resistor values from color bands or SMD codes, and vice versa. This tool is ideal for electronics enthusiasts, students, and DIYers working with 4, 5, or 6-band resistors and various SMD codes. It functions offline and requires no registration.

**Highlights:** Calculate resistor values from color bands, Convert resistor values to color bands, Supports 4, 5, and 6-band resistors, Handles SMD codes (EIA-3, EIA-4, EIA-96), Works offline, No registration required

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

**In-app purchases:** none


### Resistor Color Code Calc.

[App page](https://appshunter.io/ios/app/resistor-color-code-calc/id6755287812)

Instantly decode resistor color bands, calculate exact values, and convert SMD resistor markings. This app provides essential tools for electronics students, technicians, and hobbyists with a clean interface and fast processing.

**Highlights:** Decode 3- to 6-band resistors, Calculate resistance values, Convert SMD resistor codes, Series and parallel resistor calculators, Save and share results, Clean and simple interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


## Frequently asked questions

### Is Resistor free?

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

### Is Resistor Color Code Calc. free?

Resistor Color Code Calc. is free to download, with in-app purchases available.

### Which has better reviews, Resistor or Resistor Color Code Calc.?

Resistor Color Code Calc. is rated higher. Resistor averages 4.9 out of 5 from 17 ratings, while Resistor Color Code Calc. averages 5.0 from 1 ratings.

### Do Resistor or Resistor Color Code Calc. have ads?

Neither Resistor nor Resistor Color Code Calc. shows ads.

### Which is updated more often, Resistor or Resistor Color Code Calc.?

Resistor ships an update every 9 months, and Resistor Color Code Calc. every 5 months. Most recently, Resistor was updated on September 27, 2026 and Resistor Color Code Calc. on October 12, 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.*