# RF Tools vs ResOS Station App

The clearest difference is update cadence: ResOS Station App at every 4 days against RF Tools's every 14 months. ResOS Station App also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RF Tools ships an update every 14 months, ResOS Station App every 4 days. The most recent releases landed on June 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | RF Tools | ResOS Station App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/rf-tools/id525678686/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 12 MB | 34 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [HUBER + SUHNER AG](https://appshunter.io/developer/525678889) | [Cowlar Design Studios](https://appshunter.io/developer/1682871854) |

## What reviewers say

### RF Tools

[App page](https://appshunter.io/ios/app/rf-tools/id525678686)

This utility app helps engineers and students calculate and convert RF-specific values like impedance, wavelength, and return loss. It also includes a calculator for comparing RF cables and assemblies, and provides access to product catalogs and branch information.

**Highlights:** RF value conversion (impedance, wavelength, return loss), RF assembly calculator, dB calculator, Product catalog access, Branch locator

**Features:** macOS Compatibility

**In-app purchases:** none


### ResOS Station App

[App page](https://appshunter.io/ios/app/resos-station-app/id6743181172)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RF Tools free?

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

### Is ResOS Station App free?

ResOS Station App is free to download, with no in-app purchases.

### Do RF Tools or ResOS Station App have ads?

Neither RF Tools nor ResOS Station App shows ads.

### Which is updated more often, RF Tools or ResOS Station App?

RF Tools ships an update every 14 months, and ResOS Station App every 4 days. Most recently, RF Tools was updated on June 9, 2026 and ResOS Station App on September 21, 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.*