# Circuit Wiring Simulator vs Voltage Calculator

The clearest difference is in-app purchases: Voltage Calculator at none against Circuit Wiring Simulator's 5. Circuit Wiring Simulator's advantage is update cadence (every 8 days vs every 2 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

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

Circuit Wiring Simulator ships an update every 8 days, Voltage Calculator every 2 weeks. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Circuit Wiring Simulator | Voltage Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Size | 46 MB | 72 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [沛洁 赖](https://appshunter.io/developer/1895142467) | [ESDEV Teknoloji](https://appshunter.io/developer/1693053468) |

## What reviewers say

### 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 |


### Voltage Calculator

[App page](https://appshunter.io/ios/app/voltage-calculator/id6790529321)

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

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Wiring Simulator free?

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

### Is Voltage Calculator free?

Voltage Calculator is free to download, with no in-app purchases.

### Do Circuit Wiring Simulator or Voltage Calculator have ads?

Neither Circuit Wiring Simulator nor Voltage Calculator shows ads.

### Which is updated more often, Circuit Wiring Simulator or Voltage Calculator?

Circuit Wiring Simulator ships an update every 8 days, and Voltage Calculator every 2 weeks. Most recently, Circuit Wiring Simulator was updated on September 28, 2026 and Voltage Calculator on September 15, 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.*