# Waver vs RST Scope

The clearest difference is ads: Waver at none against RST Scope's shown. Waver also leads on ratings volume (12 vs 1) and monetization model (free vs ad-supported). On price, rating, update cadence and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Waver against 5.0 for RST Scope. That said, the two scores are not equally well evidenced: Waver has 12 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Waver | RST Scope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (12 ratings)](https://appshunter.io/ios/app/waver-data-over-sound/id1543607865/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rst-scope/id1550582276/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 5 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Georgi Gerganov](https://appshunter.io/developer/1543607867) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### Waver

[App page](https://appshunter.io/ios/app/waver-data-over-sound/id1543607865)

Communicate with nearby devices using sound waves for text and file sharing. This app enables local messaging without an internet connection, utilizing your device's speaker and microphone.

**Highlights:** Text messaging via sound, File sharing over local network, Audible and ultrasound protocols, No internet connection required, Real-time audio spectrum analysis, Adjustable volume and transmission settings

**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 Waver free?

Waver 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, Waver or RST Scope?

RST Scope is rated higher. Waver averages 4.9 out of 5 from 12 ratings, while RST Scope averages 5.0 from 1 ratings.

### Do Waver or RST Scope have ads?

RST Scope shows ads; Waver does not.

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

Waver ships an update every 3 days, and RST Scope every 3 days. Most recently, Waver was updated on November 3, 2026 and RST Scope on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*