# DriveRack PA2 Control vs Audio Spectrum Analyzer dB RTA

The clearest difference is rating: Audio Spectrum Analyzer dB RTA at 4.5 against DriveRack PA2 Control's 3.2. Audio Spectrum Analyzer dB RTA also leads on ratings volume (3K vs 110) and review sentiment (44% vs 34%). DriveRack PA2 Control's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15). On price, update cadence, ads and device support 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. DriveRack PA2 Control asks for nothing beyond the download.

Audio Spectrum Analyzer dB RTA holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer dB RTA has 3K ratings behind it against 110, so its average is the more settled of the two. Written reviews point the same way: 34% of DriveRack PA2 Control's written reviews are positive against 44% of Audio Spectrum Analyzer dB RTA's.

DriveRack PA2 Control ships an update every 8 months, Audio Spectrum Analyzer dB RTA every 5 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | DriveRack PA2 Control | Audio Spectrum Analyzer dB RTA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (110 ratings)](https://appshunter.io/ios/app/driverack-pa2-control/id817149833/reviews) | **[4.5 (3K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790/reviews)** |
| Number of ratings | 110 | **3K** |
| Positive reviews | 34.0% of reviews | **43.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 67 MB | 24 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Harman Professional, Inc.](https://appshunter.io/developer/410104207) | [Marina Polyanskaya](https://appshunter.io/developer/1519482916) |

## What reviewers say

### DriveRack PA2 Control

[App page](https://appshunter.io/ios/app/driverack-pa2-control/id817149833)

Control your PA2 hardware wirelessly from any location. This app optimizes and protects your loudspeakers by managing audio processing between your mixer and amplifiers.

**Highlights:** Wireless control via WiFi, System setup from any location, Loudspeaker optimization, Loudspeaker protection, Audio processing management

**In-app purchases:** none


### 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


## Frequently asked questions

### Is DriveRack PA2 Control free?

DriveRack PA2 Control is free to download, with no in-app purchases.

### Is Audio Spectrum Analyzer dB RTA free?

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

### Which has better reviews, DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA?

Audio Spectrum Analyzer dB RTA is rated higher. DriveRack PA2 Control averages 3.2 out of 5 from 110 ratings, while Audio Spectrum Analyzer dB RTA averages 4.5 from 3K ratings.

### Do DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA have ads?

Neither DriveRack PA2 Control nor Audio Spectrum Analyzer dB RTA shows ads.

### Which is updated more often, DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA?

DriveRack PA2 Control ships an update every 8 months, and Audio Spectrum Analyzer dB RTA every 5 months. Most recently, DriveRack PA2 Control was updated on October 23, 2026 and Audio Spectrum Analyzer dB RTA on October 29, 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.*