# Resistor Brain vs Resistor color codes calc

The clearest difference is in-app purchases: Resistor color codes calc at none against Resistor Brain's 3. Resistor color codes calc also leads on review sentiment (100% vs 67%). Resistor Brain's advantage is ads (none vs shown) and update cadence (daily vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Resistor Brain sells 3 one-off in-app purchases. Resistor color codes calc asks for nothing beyond the download.

Resistor Brain ships an update daily, Resistor color codes calc every 2 months. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Resistor Brain | Resistor color codes calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/resistor-brain/id1671579246/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 27 MB | 10 MB |
| Requires iOS | **11.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [TOYSPRING](https://appshunter.io/developer/430948595) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Resistor Brain

[App page](https://appshunter.io/ios/app/resistor-brain/id1671579246)

This app uses your device's camera and a neural network to identify resistors and decode their resistance values from color bands. It offers a unique perspective on electronic components and includes an "Inside Brain" feature to visualize the neural network's processing.

**Highlights:** Resistor detection via camera, Color stripe decoding, Neural network processing, 3- and 4-stripe resistor recognition, "Inside Brain" visualization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Generous Tip | $2.99 | one-time |
| Enormous Tip | $6.99 | one-time |


### Resistor color codes calc

[App page](https://appshunter.io/ios/app/resistor-color-codes-calc/id6443917752)

Instantly decode resistor color bands to find resistance, tolerance, and TCR. Also calculates series/parallel resistance and voltage dividers. Supports E-series validation and multiple languages.

**Highlights:** 3- to 6-band color code support, Resistance, tolerance, and TCR calculation, Value to color code conversion, E-series validation, Series and parallel resistor calculation, Voltage divider calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Brain free?

Resistor Brain is free to download, with in-app purchases available.

### Is Resistor color codes calc free?

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

### Do Resistor Brain or Resistor color codes calc have ads?

Resistor color codes calc shows ads; Resistor Brain does not.

### Which is updated more often, Resistor Brain or Resistor color codes calc?

Resistor Brain ships an update daily, and Resistor color codes calc every 2 months. Most recently, Resistor Brain was updated on October 8, 2026 and Resistor color codes calc on October 19, 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.*