# RST Scope vs iClassicAmp

The clearest difference is ads: iClassicAmp at none against RST Scope's shown. On price, update cadence, 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 ships an update every 3 days, iClassicAmp every 4 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RST Scope | iClassicAmp |
| --- | --- | --- |
| 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 | Yes | **No** |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Ad-supported | — |
| Size | 5 MB | 2 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Fabio Elia](https://appshunter.io/developer/1449001502) |

## What reviewers say

### 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


### iClassicAmp

[App page](https://appshunter.io/ios/app/iclassicamp/id6532609857)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RST Scope free?

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

### Is iClassicAmp free?

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

### Do RST Scope or iClassicAmp have ads?

RST Scope shows ads; iClassicAmp does not.

### Which is updated more often, RST Scope or iClassicAmp?

RST Scope ships an update every 3 days, and iClassicAmp every 4 days. Most recently, RST Scope was updated on October 13, 2026 and iClassicAmp 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.*