# Audio Spectrum Analyzer dB RTA vs Audio / Spectrum Analyzer

The clearest difference is ads: Audio Spectrum Analyzer dB RTA at none against Audio / Spectrum Analyzer's shown. Audio Spectrum Analyzer dB RTA also leads on iOS requirement (15 vs 17.0). Audio / Spectrum Analyzer's advantage is review sentiment (78% vs 44%) and update cadence (every 2 weeks vs every 5 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Audio Spectrum Analyzer dB RTA sells 2 in-app purchases, starting at $1.99 per month and Audio / Spectrum Analyzer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Audio Spectrum Analyzer dB RTA against 4.6 for Audio / Spectrum Analyzer. Both are backed by a comparable volume of ratings — 3K and 1.1K respectively. Written reviews are what separate them: 44% of Audio Spectrum Analyzer dB RTA's written reviews are positive against 78% of Audio / Spectrum Analyzer's.

Audio Spectrum Analyzer dB RTA ships an update every 5 months, Audio / Spectrum Analyzer every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Audio Spectrum Analyzer dB RTA | Audio / Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (3K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790/reviews) | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** |
| Number of ratings | **3K** | 1.1K |
| Positive reviews | 43.6% of reviews | **78.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 5 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marina Polyanskaya](https://appshunter.io/developer/1519482916) | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) |

## What reviewers say

### Audio Spectrum Analyzer dB RTA

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790)

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

**Highlights:** Octave Band Real-Time Analyzer, FFT Plot - Fast Fourier Transform, Integrated Sound Level Meter (dB-A), Multispectral Harmonic Analyzer, Hold Max and Min Peaks, Various Window Functions

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per month |
| Spectrum Analyzer Pro | $7.99 | one-time |

**What reviewers like**

- 🚀 Excellent audio analysis tool
- 👍 Clean and intuitive interface
- 💡 Customizable frequency range
- 🔍 Accurate real-time spectrum visualization

**What reviewers complain about**

- 🐛 Compatibility issues with newer iOS versions
- 🔁 Constant prompts to upgrade to Pro version
- 🔌 High battery consumption
- 📊 Inaccurate frequency tracking in some modes

**Reported bugs**

- Freezing and crashing on certain devices
- Incorrect frequency readings in Octave RTA mode
- Inability to switch between microphone sources

**Requested features**

- External microphone support
- Ability to save and compare measurement results
- More detailed instructions and tutorials
- Vertical orientation option


### Audio / Spectrum Analyzer

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

Analyze audio signals in real-time with waveform, amplitude spectrum, and spectrogram displays. Offers detailed customization for FFT size, window functions, and frequency weighting. Includes tools for generating basic waveforms and measurement signals.

**Highlights:** Simultaneous Waveform, Spectrum, Spectrogram display, Customizable FFT size and window functions, Frequency weighting (Flat, dBA, dBC), Octave analysis, Basic waveform and measurement signal generation, Peak hold and spectrum tilt

**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


## Frequently asked questions

### Is Audio Spectrum Analyzer dB RTA free?

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

### Is Audio / Spectrum Analyzer free?

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

### Which has better reviews, Audio Spectrum Analyzer dB RTA or Audio / Spectrum Analyzer?

Audio / Spectrum Analyzer is rated higher. Audio Spectrum Analyzer dB RTA averages 4.5 out of 5 from 3K ratings, while Audio / Spectrum Analyzer averages 4.6 from 1.1K ratings.

### Do Audio Spectrum Analyzer dB RTA or Audio / Spectrum Analyzer have ads?

Audio / Spectrum Analyzer shows ads; Audio Spectrum Analyzer dB RTA does not.

### Which is updated more often, Audio Spectrum Analyzer dB RTA or Audio / Spectrum Analyzer?

Audio Spectrum Analyzer dB RTA ships an update every 5 months, and Audio / Spectrum Analyzer every 2 weeks. Most recently, Audio Spectrum Analyzer dB RTA was updated on November 3, 2026 and Audio / Spectrum Analyzer on November 3, 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.*