# CircuitLab Designer vs Smith Chart Touch

The clearest difference is price: Smith Chart Touch at Free against CircuitLab Designer's $2.99. Smith Chart Touch also leads on iOS requirement (15.0 vs 17.6). CircuitLab Designer's advantage is update cadence (weekly vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Smith Chart Touch is free to download; CircuitLab Designer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CircuitLab Designer ships an update weekly, Smith Chart Touch every 3 months. The most recent releases landed on October 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CircuitLab Designer | Smith Chart Touch |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/circuitlab-designer/id6758009957/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Paid | — |
| Size | 11 MB | 22 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KRASMIROV KANEV](https://appshunter.io/developer/1867884547) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### CircuitLab Designer

[App page](https://appshunter.io/ios/app/circuitlab-designer/id6758009957)

Learn electrical circuits through interactive building challenges. Instantly visualize current flow and understand concepts like series and parallel connections. This app offers a clean, offline experience with no ads or tracking.

**Highlights:** Interactive circuit-building challenges, Real-time visual feedback, Learn series and parallel connections, Understand circuit logic, Offline functionality, No ads or tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Smith Chart Touch

[App page](https://appshunter.io/ios/app/smith-chart-touch/id6760685457)

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

**In-app purchases:** none


## Frequently asked questions

### Is CircuitLab Designer free?

CircuitLab Designer costs $2.99, with no in-app purchases.

### Is Smith Chart Touch free?

Smith Chart Touch is free to download, with no in-app purchases.

### Do CircuitLab Designer or Smith Chart Touch have ads?

Neither CircuitLab Designer nor Smith Chart Touch shows ads.

### Which is updated more often, CircuitLab Designer or Smith Chart Touch?

CircuitLab Designer ships an update weekly, and Smith Chart Touch every 3 months. Most recently, CircuitLab Designer was updated on October 1, 2026 and Smith Chart Touch on September 14, 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.*