# HFpager vs RST Scope

The clearest difference is rating: RST Scope at 5.0 against HFpager's 3.0. RST Scope also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 3 months). HFpager's advantage is iOS requirement (12.4 vs 15.6). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. HFpager sells 1 in-app purchase, starting at $9.99 per year. RST Scope asks for nothing beyond the download.

RST Scope holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

HFpager ships an update every 3 months, RST Scope every 3 days. The most recent releases landed on June 4, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | HFpager | RST Scope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/hfpager/id1534721365/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rst-scope/id1550582276/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 26 MB | 5 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmitry Likhtarov](https://appshunter.io/developer/428797499) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### HFpager

[App page](https://appshunter.io/ios/app/hfpager/id1534721365)

This utility app enables the exchange of short text messages through audio and radio channels using IFSK modulation. It offers basic reception and transmission functions for free, with a subscription unlocking all features and removing ads.

**Highlights:** IFSK modulation for audio messaging, Send and receive short text messages, Utilizes audio and radio channels, Basic functions free, Subscription removes restrictions and ads

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Подписка 12 месяцев | $9.99 | per year |


### 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 HFpager free?

HFpager is free to download, with in-app purchases available.

### Is RST Scope free?

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

### Which has better reviews, HFpager or RST Scope?

RST Scope is rated higher. HFpager averages 3.0 out of 5 from 1 ratings, while RST Scope averages 5.0 from 1 ratings.

### Do HFpager or RST Scope have ads?

Both HFpager and RST Scope show ads.

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

HFpager ships an update every 3 months, and RST Scope every 3 days. Most recently, HFpager was updated on June 4, 2026 and RST Scope on August 22, 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.*