# Blue Box vs Generate Frequency Sounds Hz

The clearest difference is price: Generate Frequency Sounds Hz at Free against Blue Box's $4.99. Generate Frequency Sounds Hz also leads on ratings volume (14 vs 3). Blue Box's advantage is rating (5.0 vs 3.6) and in-app purchases (none vs 3). On update cadence, device support and iOS requirement there is nothing between them.

Generate Frequency Sounds Hz is free to download; Blue Box costs $4.99 up front. Generate Frequency Sounds Hz sells 3 in-app purchases, starting at $4.99 per 7 days. Blue Box asks for nothing beyond the download.

Blue Box holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 3 and 14 respectively. Written reviews point the same way: 56% of Blue Box's written reviews are positive against 30% of Generate Frequency Sounds Hz's.

Blue Box ships an update every 7 months, Generate Frequency Sounds Hz every 4 months. The most recent releases landed on September 11, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Blue Box | Generate Frequency Sounds Hz |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/blue-box/id391832739/reviews)** | [3.6 (14 ratings)](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706/reviews) |
| Number of ratings | 3 | **14** |
| Positive reviews | **55.6% of reviews** | 30.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#192** | — |
| Size | 2 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Valley Systems](https://appshunter.io/developer/327149814) | [Kevin Ghori](https://appshunter.io/developer/1639082610) |

## What reviewers say

### Blue Box

[App page](https://appshunter.io/ios/app/blue-box/id391832739)

**Currently charting:** #192 Top Paid · Utilities (US App Store)

Encode and decode DTMF signals using your device's microphone or keypad. Play back tone sequences with adjustable settings, and save them for easy recall. Explore various tone systems, including trunk control and coin signals, for educational and utility purposes.

**Highlights:** Encode/decode DTMF signals, Adjustable tone, delay, and volume, US, UK, and European tone systems, Multi-frequency and trunk control tones, Coin tone sequences (Red Box mode), Custom tone creation, Save and organize sequences

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

**In-app purchases:** none


### Generate Frequency Sounds Hz

[App page](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706)

Generate various sound waves and frequencies with this utility app. It offers single and multi-oscillator modes, binaural beats, and a dedicated test for bass and sub-woofers. Explore ultrasonic sounds and noise generation.

**Highlights:** Single oscillator for single frequency waves, Multi-oscillator for multiple sound waves, Binaural beats with carrier and beat frequencies, Bass/sub-woofer testing, Generate ultrasonic sound and noise

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generate Frequency Weekly Plan | $4.99 | per 7 days |
| Generate Frequency Monthly Plan | $9.99 | per month |
| Generate Frequency Yearly Plan | $49.99 | per year |


## Frequently asked questions

### Is Blue Box free?

Blue Box costs $4.99, with no in-app purchases.

### Is Generate Frequency Sounds Hz free?

Generate Frequency Sounds Hz is free to download, with in-app purchases available.

### Which has better reviews, Blue Box or Generate Frequency Sounds Hz?

Blue Box is rated higher. Blue Box averages 5.0 out of 5 from 3 ratings, while Generate Frequency Sounds Hz averages 3.6 from 14 ratings.

### Do Blue Box or Generate Frequency Sounds Hz have ads?

Generate Frequency Sounds Hz shows ads; Blue Box does not.

### Which is updated more often, Blue Box or Generate Frequency Sounds Hz?

Blue Box ships an update every 7 months, and Generate Frequency Sounds Hz every 4 months. Most recently, Blue Box was updated on September 11, 2026 and Generate Frequency Sounds Hz on August 18, 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.*