# Valiance Backbone for CW vs Audio Frequency Analyzer

The clearest difference is rating: Audio Frequency Analyzer at 3.7 against Valiance Backbone for CW's 2.0. Audio Frequency Analyzer also leads on in-app purchases (none vs 4) and ratings volume (3 vs 1). Valiance Backbone for CW's advantage is price ($3.99 vs $9.99) and review sentiment (73% vs 60%). On update cadence, ads and monetization model there is nothing between them.

Valiance Backbone for CW costs $3.99 and Audio Frequency Analyzer $9.99 up front. Valiance Backbone for CW sells 4 one-off in-app purchases. Audio Frequency Analyzer asks for nothing beyond the download.

Audio Frequency Analyzer holds the better App Store score, 3.7 against 2.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews complicate that: 73% of Valiance Backbone for CW's written reviews are positive against 60% of Audio Frequency Analyzer's, so the app with the better star average is not the one people write more warmly about.

Valiance Backbone for CW ships an update every 11 months, Audio Frequency Analyzer every 8 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Valiance Backbone for CW | Audio Frequency Analyzer |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/valiance-backbone-for-cw-vbc/id521096092/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | **72.7% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 8 months** |
| Monetization | Paid | Paid |
| Size | 28 MB | 0 MB |
| Requires iOS | **11.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nob](https://appshunter.io/developer/508077821) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### Valiance Backbone for CW

[App page](https://appshunter.io/ios/app/valiance-backbone-for-cw-vbc/id521096092)

Decode Morse code signals in real-time using your device's microphone. This app employs advanced FFT technology to accurately distinguish transceiver signals from noise, offering a high success rate for radio communications. It features a range of tools for signal analysis and log management.

**Highlights:** Real-time Morse code decoding via microphone, Advanced FFT technology for signal detection, Minimizes false decodes from noise, Morse Sound Recorder & Player, Export text logs and audio data, Predictive decoding for difficult codes, Tone and sound pressure measurement

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip for the Developer | $0.99 | one-time |
| Standard Support | $4.99 | one-time |
| Premium | $9.99 | one-time |
| Ultimate Supporter | $29.99 | one-time |


### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


## Frequently asked questions

### Is Valiance Backbone for CW free?

Valiance Backbone for CW costs $3.99, and also offers in-app purchases.

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Which has better reviews, Valiance Backbone for CW or Audio Frequency Analyzer?

Audio Frequency Analyzer is rated higher. Valiance Backbone for CW averages 2.0 out of 5 from 1 ratings, while Audio Frequency Analyzer averages 3.7 from 3 ratings.

### Do Valiance Backbone for CW or Audio Frequency Analyzer have ads?

Neither Valiance Backbone for CW nor Audio Frequency Analyzer shows ads.

### Which is updated more often, Valiance Backbone for CW or Audio Frequency Analyzer?

Valiance Backbone for CW ships an update every 11 months, and Audio Frequency Analyzer every 8 months. Most recently, Valiance Backbone for CW was updated on November 1, 2026 and Audio Frequency Analyzer on November 1, 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.*