# Smith Charts vs Electronics Toolkit calc

The clearest difference is update cadence: Smith Charts at every 3 weeks against Electronics Toolkit calc's every 4 months. Smith Charts also leads on price ($3.99 vs $4.99). Electronics Toolkit calc's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Smith Charts costs $3.99 and Electronics Toolkit calc $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smith Charts ships an update every 3 weeks, Electronics Toolkit calc every 4 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Smith Charts | Electronics Toolkit calc |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/smith-charts/id1602503719/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Paid | — |
| Size | 24 MB | 25 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edoardo Orzes](https://appshunter.io/developer/1665361246) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Smith Charts

[App page](https://appshunter.io/ios/app/smith-charts/id1602503719)

Design matching networks, analyze device parameters, and compute stability circles with this interactive tool. Supports S parameters, various components, and offers advanced engineering features for RF design. Available in dark mode and exportable to PDF.

**Highlights:** Interactive Smith chart with drag and zoom, Design matching networks with various components, Compute stability, equi gain, and noise circles, Import S parameters from Touchstone files, Export designs to PDF, image, or file, Dark mode support, Ruler for wavelength measurement

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

**In-app purchases:** none


### Electronics Toolkit calc

[App page](https://appshunter.io/ios/app/electronics-toolkit-calc/id6473828034)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smith Charts free?

Smith Charts costs $3.99, with no in-app purchases.

### Is Electronics Toolkit calc free?

Electronics Toolkit calc costs $4.99, with no in-app purchases.

### Do Smith Charts or Electronics Toolkit calc have ads?

Neither Smith Charts nor Electronics Toolkit calc shows ads.

### Which is updated more often, Smith Charts or Electronics Toolkit calc?

Smith Charts ships an update every 3 weeks, and Electronics Toolkit calc every 4 months. Most recently, Smith Charts was updated on November 7, 2026 and Electronics Toolkit calc on November 12, 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.*