# Spectrum Compact Simulator vs RST Scope

The clearest difference is rating: RST Scope at 5.0 against Spectrum Compact Simulator's 1.0. RST Scope also leads on update cadence (every 3 days vs every 2 months). Spectrum Compact Simulator's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, 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.

RST Scope holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Spectrum Compact Simulator ships an update every 2 months, RST Scope every 3 days. The most recent releases landed on September 18, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Spectrum Compact Simulator | RST Scope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/spectrum-compact-simulator/id910904261/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rst-scope/id1550582276/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 5 MB |
| Requires iOS | **7.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAF Tehnika AS](https://appshunter.io/developer/514563603) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### Spectrum Compact Simulator

[App page](https://appshunter.io/ios/app/spectrum-compact-simulator/id910904261)

Explore the functionality of a handheld microwave spectrum analyzer through a realistic simulation. This application demonstrates how to perform antenna alignment, troubleshooting, and maintenance with ease and speed.

**Highlights:** Simulates handheld microwave spectrum analyzer, Demonstrates real microwave radio spectrum data, Facilitates antenna alignment, Aids in troubleshooting, Supports maintenance tasks

**Features:** macOS Compatibility

**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 Spectrum Compact Simulator free?

Spectrum Compact Simulator is free to download, with no in-app purchases.

### Is RST Scope free?

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

### Which has better reviews, Spectrum Compact Simulator or RST Scope?

RST Scope is rated higher. Spectrum Compact Simulator averages 1.0 out of 5 from 1 ratings, while RST Scope averages 5.0 from 1 ratings.

### Do Spectrum Compact Simulator or RST Scope have ads?

RST Scope shows ads; Spectrum Compact Simulator does not.

### Which is updated more often, Spectrum Compact Simulator or RST Scope?

Spectrum Compact Simulator ships an update every 2 months, and RST Scope every 3 days. Most recently, Spectrum Compact Simulator was updated on September 18, 2026 and RST Scope on October 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.*