# Read A Res vs Resistor Decoder

The clearest difference is in-app purchases: Resistor Decoder at none against Read A Res's 1. Resistor Decoder also leads on ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Read A Res sells 1 one-off in-app purchase. Resistor Decoder asks for nothing beyond the download.

Read A Res ships an update every 2 months, Resistor Decoder every 9 days. The most recent releases landed on June 4, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Read A Res | Resistor Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (33 ratings)](https://appshunter.io/ios/app/read-a-res/id1437744283/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 72 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Enes Akkus](https://appshunter.io/developer/1416782412) | [ESDEV Teknoloji](https://appshunter.io/developer/1693053468) |

## What reviewers say

### Read A Res

[App page](https://appshunter.io/ios/app/read-a-res/id1437744283)

Easily read and convert electronic component resistances. Input color codes or SMD values, and the application handles the rest. Offers a straightforward interface for quick calculations.

**Highlights:** Resistance reading, Resistance conversion, Color code input, SMD value input, Simple interface

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Resistor Decoder

[App page](https://appshunter.io/ios/app/resistor-decoder/id6786609623)

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

**In-app purchases:** none


## Frequently asked questions

### Is Read A Res free?

Read A Res is free to download, with in-app purchases available.

### Is Resistor Decoder free?

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

### Do Read A Res or Resistor Decoder have ads?

Read A Res shows ads; Resistor Decoder does not.

### Which is updated more often, Read A Res or Resistor Decoder?

Read A Res ships an update every 2 months, and Resistor Decoder every 9 days. Most recently, Read A Res was updated on June 4, 2026 and Resistor Decoder on September 11, 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.*