# CleanCityNetworks vs RF calculator & Smith Chart

The clearest difference is in-app purchases: CleanCityNetworks at none against RF calculator & Smith Chart's 1. CleanCityNetworks also leads on iOS requirement (12.1 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RF calculator & Smith Chart sells 1 one-off in-app purchase. CleanCityNetworks asks for nothing beyond the download.

CleanCityNetworks ships an update every 3 months, RF calculator & Smith Chart every 4 months. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | CleanCityNetworks | RF calculator & Smith Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/rf-calculator-and-smith-chart/id6757265018/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | — | Free |
| Size | 32 MB | 31 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ecube Labs Co.,Ltd.](https://appshunter.io/developer/931836036) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### CleanCityNetworks

[App page](https://appshunter.io/ios/app/cleancitynetworks/id1035245885)

**Features:** macOS Compatibility

**In-app purchases:** none


### RF calculator & Smith Chart

[App page](https://appshunter.io/ios/app/rf-calculator-and-smith-chart/id6757265018)

This app provides a comprehensive suite of tools for RF engineers and enthusiasts, including impedance matching, network analysis, filter design, and antenna calculations. It simplifies complex RF engineering tasks with an intuitive interface and quick results.

**Highlights:** Smith Chart for impedance visualization, Impedance matching network design, RF filter design tools, RF attenuator design, Antenna and propagation calculations, RLC circuit analysis, Component design and reference

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade to pro | $5.99 | one-time |


## Frequently asked questions

### Is CleanCityNetworks free?

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

### Is RF calculator & Smith Chart free?

RF calculator & Smith Chart is free to download, with in-app purchases available.

### Do CleanCityNetworks or RF calculator & Smith Chart have ads?

Neither CleanCityNetworks nor RF calculator & Smith Chart shows ads.

### Which is updated more often, CleanCityNetworks or RF calculator & Smith Chart?

CleanCityNetworks ships an update every 3 months, and RF calculator & Smith Chart every 4 months. Most recently, CleanCityNetworks was updated on November 11, 2026 and RF calculator & Smith Chart on November 9, 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.*