# RST Scope vs Hoptr

The clearest difference is ads: Hoptr at none against RST Scope's shown. RST Scope's advantage is update cadence (every 3 days vs monthly) and iOS requirement (15.6 vs 18.0). 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.

RST Scope ships an update every 3 days, Hoptr monthly. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RST Scope | Hoptr |
| --- | --- | --- |
| 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** | Monthly |
| Monetization | Ad-supported | — |
| Size | 5 MB | 9 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Yusuke Morishita](https://appshunter.io/developer/6779776547) |

## 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


### Hoptr

[App page](https://appshunter.io/ios/app/hoptr/id6468703643)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RST Scope free?

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

### Is Hoptr free?

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

### Do RST Scope or Hoptr have ads?

RST Scope shows ads; Hoptr does not.

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

RST Scope ships an update every 3 days, and Hoptr monthly. Most recently, RST Scope was updated on October 13, 2026 and Hoptr on October 25, 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.*