# Smith Charts vs AetherRF Lite

The clearest difference is price: AetherRF Lite at Free against Smith Charts's $3.99. AetherRF Lite also leads on update cadence (every 9 days vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AetherRF Lite is free to download; Smith Charts costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smith Charts ships an update every 3 weeks, AetherRF Lite every 9 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Smith Charts | AetherRF Lite |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/smith-charts/id1602503719/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Paid | — |
| Size | 24 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Edoardo Orzes](https://appshunter.io/developer/1665361246) | [Morten Vinding](https://appshunter.io/developer/6782186078) |

## 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


### AetherRF Lite

[App page](https://appshunter.io/ios/app/aetherrf-lite/id6782214375)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smith Charts free?

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

### Is AetherRF Lite free?

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

### Do Smith Charts or AetherRF Lite have ads?

Neither Smith Charts nor AetherRF Lite shows ads.

### Which is updated more often, Smith Charts or AetherRF Lite?

Smith Charts ships an update every 3 weeks, and AetherRF Lite every 9 days. Most recently, Smith Charts was updated on October 24, 2026 and AetherRF Lite on October 7, 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.*