# Resistor Color Code Calc. vs Resistor Color Code Reader

The clearest difference is update cadence: Resistor Color Code Reader at every 4 weeks against Resistor Color Code Calc.'s every 5 months. Resistor Color Code Calc.'s advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Resistor Color Code Calc. sells 1 one-off in-app purchase and Resistor Color Code Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Resistor Color Code Calc. ships an update every 5 months, Resistor Color Code Reader every 4 weeks. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Resistor Color Code Calc. | Resistor Color Code Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/resistor-color-code-calc/id6755287812/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 58 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) | [Ravinderjeet Dhillon](https://appshunter.io/developer/1896491671) |

## What reviewers say

### 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 |


### Resistor Color Code Reader

[App page](https://appshunter.io/ios/app/resistor-color-code-reader/id6799727676)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Workbench Tools | $3.99 | one-time |


## Frequently asked questions

### Is Resistor Color Code Calc. free?

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

### Is Resistor Color Code Reader free?

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

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

Neither Resistor Color Code Calc. nor Resistor Color Code Reader shows ads.

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

Resistor Color Code Calc. ships an update every 5 months, and Resistor Color Code Reader every 4 weeks. Most recently, Resistor Color Code Calc. was updated on October 12, 2026 and Resistor Color Code Reader on October 1, 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.*