# Simple Circuit Builder vs AI Resistor Color Code Scanner

The clearest difference is rating: Simple Circuit Builder at 4.0 against AI Resistor Color Code Scanner's 3.0. Simple Circuit Builder also leads on in-app purchases (none vs 1) and ratings volume (28 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. AI Resistor Color Code Scanner sells 1 one-off in-app purchase. Simple Circuit Builder asks for nothing beyond the download.

Simple Circuit Builder holds the better App Store score, 4.0 against 3.0. That said, the two scores are not equally well evidenced: Simple Circuit Builder has 28 ratings behind it against 1, so its average is the more settled of the two.

Simple Circuit Builder ships an update every 3 weeks, AI Resistor Color Code Scanner every 5 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Simple Circuit Builder | AI Resistor Color Code Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/ai-resistor-color-code-scanner/id6748325846/reviews) |
| Number of ratings | **28** | 1 |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 163 MB |
| Requires iOS | **14.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Andrew Ausonio](https://appshunter.io/developer/1697652973) |

## What reviewers say

### Simple Circuit Builder

[App page](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098)

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

**Highlights:** Build circuits with up to eight components, Five component types, Virtual volt and amp meters, Adjustable resistor and voltage values, Real-time circuit analysis, Demonstrates 'Opens' and 'Shorts'

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Resistor Color Code Scanner

[App page](https://appshunter.io/ios/app/ai-resistor-color-code-scanner/id6748325846)

Instantly identify and calculate resistor values using your iPhone camera. This tool eliminates the need for manual color band reading and charts, offering quick results for engineers, hobbyists, and students. Save your scans and organize them into projects for efficient workflow.

**Highlights:** Instant camera scanning, Save and organize scans, Interactive color band editing, Supports 3-6 band resistors, Offline functionality, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | one-time |


## Frequently asked questions

### Is Simple Circuit Builder free?

Simple Circuit Builder is free to download, with no in-app purchases.

### Is AI Resistor Color Code Scanner free?

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

### Which has better reviews, Simple Circuit Builder or AI Resistor Color Code Scanner?

Simple Circuit Builder is rated higher. Simple Circuit Builder averages 4.0 out of 5 from 28 ratings, while AI Resistor Color Code Scanner averages 3.0 from 1 ratings.

### Do Simple Circuit Builder or AI Resistor Color Code Scanner have ads?

Neither Simple Circuit Builder nor AI Resistor Color Code Scanner shows ads.

### Which is updated more often, Simple Circuit Builder or AI Resistor Color Code Scanner?

Simple Circuit Builder ships an update every 3 weeks, and AI Resistor Color Code Scanner every 5 weeks. Most recently, Simple Circuit Builder was updated on October 1, 2026 and AI Resistor Color Code Scanner on October 5, 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.*