# Audio / Spectrum Analyzer vs Sonic Hz Frequency Generator

The clearest difference is review sentiment: Audio / Spectrum Analyzer at 79% against Sonic Hz Frequency Generator's 10%. Audio / Spectrum Analyzer also leads on update cadence (every 2 weeks vs every 3 months) and rating (4.6 vs 4.2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Audio / Spectrum Analyzer sells 1 one-off in-app purchase and Sonic Hz Frequency Generator sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Audio / Spectrum Analyzer holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1.1K ratings behind it against 109, so its average is the more settled of the two. Written reviews point the same way: 79% of Audio / Spectrum Analyzer's written reviews are positive against 10% of Sonic Hz Frequency Generator's.

Audio / Spectrum Analyzer ships an update every 2 weeks, Sonic Hz Frequency Generator every 3 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Audio / Spectrum Analyzer | Sonic Hz Frequency Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** | [4.2 (109 ratings)](https://appshunter.io/ios/app/sonic-hz-frequency-generator/id1603037697/reviews) |
| Number of ratings | **1.1K** | 109 |
| Positive reviews | **78.6% of reviews** | 10.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 19 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [汇杭 钟](https://appshunter.io/developer/1481585840) |

## What reviewers say

### Audio / Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574)

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

**Highlights:** Simultaneous waveform and spectrum display, Configurable display layouts, Selectable FFT size and averaging, Frequency weighting options (Flat, dBA, dBC), Octave band analysis, Audio signal and noise generation, Peak hold and pitch meter

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $11.99 | one-time |

**What reviewers like**

- 👍 Customizable features
- ⚙️ Accurate measurements
- 🚀 Helpful for troubleshooting
- 💡 Useful for ghost hunting

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔋 High battery and CPU usage
- 🚫 Inappropriate ads/content
- 🔒 Security concerns with payment info

**Reported bugs**

- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods

**Requested features**

- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis


### Sonic Hz Frequency Generator

[App page](https://appshunter.io/ios/app/sonic-hz-frequency-generator/id1603037697)

Generate precise audio tones from 20 Hz to 20,000 Hz with various waveforms. Utilize binaural beats for meditation, sleep, and focus. Also includes a speaker cleaning function to improve audio quality.

**Highlights:** Pure tone generation (20 Hz - 20,000 Hz), Sine, square, sawtooth, triangle waveforms, Binaural beats for sleep, focus, and meditation, Speaker cleaning function, Customizable presets, Background audio playback

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium · Weekly | $6.99 | per 7 days |
| Premium for 1 month | $9.99 | per month |
| Premium for 12 months | $29.99 | per year |
| Premium Version | $69.99 | one-time |


## Frequently asked questions

### Is Audio / Spectrum Analyzer free?

Audio / Spectrum Analyzer is free to download, with in-app purchases available.

### Is Sonic Hz Frequency Generator free?

Sonic Hz Frequency Generator is free to download, with in-app purchases available.

### Which has better reviews, Audio / Spectrum Analyzer or Sonic Hz Frequency Generator?

Audio / Spectrum Analyzer is rated higher. Audio / Spectrum Analyzer averages 4.6 out of 5 from 1.1K ratings, while Sonic Hz Frequency Generator averages 4.2 from 109 ratings.

### Do Audio / Spectrum Analyzer or Sonic Hz Frequency Generator have ads?

Both Audio / Spectrum Analyzer and Sonic Hz Frequency Generator show ads.

### Which is updated more often, Audio / Spectrum Analyzer or Sonic Hz Frequency Generator?

Audio / Spectrum Analyzer ships an update every 2 weeks, and Sonic Hz Frequency Generator every 3 months. Most recently, Audio / Spectrum Analyzer was updated on October 24, 2026 and Sonic Hz Frequency Generator on October 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.*