# Prombee Config App vs RST Scope

The clearest difference is ads: Prombee Config App at none against RST Scope's shown. Prombee Config App also leads on iOS requirement (13.0 vs 15.6). RST Scope's advantage is update cadence (every 3 days vs every 6 weeks). On price, 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.

Prombee Config App ships an update every 6 weeks, RST Scope every 3 days. The most recent releases landed on October 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Prombee Config App | RST Scope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rst-scope/id1550582276/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 2 MB | 5 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Traffic Sim Co.,Ltd.](https://appshunter.io/developer/1523422659) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### Prombee Config App

[App page](https://appshunter.io/ios/app/prombee-config-app/id1523422657)

**In-app purchases:** none


### RST Scope

[App page](https://appshunter.io/ios/app/rst-scope/id1550582276)

This utility app provides spectrum scope and waterfall displays for amateur radio operators. It enhances radios lacking these features by analyzing microphone input, allowing for clear distinction of Morse code and detailed audio frequency visualization.

**Highlights:** Spectrum scope and waterfall display, Morse code distinction via FFT, Adjustable waterfall speed, Adjustable audio input level, Switchable display band (wide/narrow), Display pause function, Recording and playback of input sound

**In-app purchases:** none


## Frequently asked questions

### Is Prombee Config App free?

Prombee Config App is free to download, with no in-app purchases.

### Is RST Scope free?

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

### Do Prombee Config App or RST Scope have ads?

RST Scope shows ads; Prombee Config App does not.

### Which is updated more often, Prombee Config App or RST Scope?

Prombee Config App ships an update every 6 weeks, and RST Scope every 3 days. Most recently, Prombee Config App was updated on October 27, 2026 and RST Scope on October 13, 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.*