# Simple Circuit Builder vs Circuit Wiring Simulator

The clearest difference is in-app purchases: Simple Circuit Builder at none against Circuit Wiring Simulator's 5. Circuit Wiring Simulator's advantage is update cadence (every 8 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Circuit Wiring Simulator sells 5 one-off in-app purchases. Simple Circuit Builder asks for nothing beyond the download.

Simple Circuit Builder ships an update every 3 weeks, Circuit Wiring Simulator every 8 days. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Simple Circuit Builder | Circuit Wiring Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 14 MB | 46 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [沛洁 赖](https://appshunter.io/developer/1895142467) |

## 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


### Circuit Wiring Simulator

[App page](https://appshunter.io/ios/app/circuit-wiring-simulator/id6763458134)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-day VIP | $4.99 | one-time |
| 90-day VIP | $8.99 | one-time |
| One-year VIP | $15.90 | one-time |
| three-year VIP | $24.99 | one-time |
| Lifetime VIP | $34.99 | one-time |


## Frequently asked questions

### Is Simple Circuit Builder free?

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

### Is Circuit Wiring Simulator free?

Circuit Wiring Simulator is free to download, with in-app purchases available.

### Do Simple Circuit Builder or Circuit Wiring Simulator have ads?

Neither Simple Circuit Builder nor Circuit Wiring Simulator shows ads.

### Which is updated more often, Simple Circuit Builder or Circuit Wiring Simulator?

Simple Circuit Builder ships an update every 3 weeks, and Circuit Wiring Simulator every 8 days. Most recently, Simple Circuit Builder was updated on October 1, 2026 and Circuit Wiring Simulator on October 13, 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.*