DriveRack PA2 Control vs Audio Spectrum Analyzer Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DriveRack PA2 Control
Control your PA2 hardware wirelessly from any location. This app optimizes and protects your loudspeakers by managing audio processing between your mixer and amplifiers.
- Wireless control via WiFi
- System setup from any location
- Loudspeaker optimization
- Loudspeaker protection
- Audio processing management
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The DriveRack® PA2 Control app is the ultimate way to control the PA2 hardware. The DriveRack® PA2 provides all the processing you need between your mixer and amplifiers to optimize and protect your loudspeakers. With the PA2 app you can control all aspects of the hardware through a network (WiFi) connection allowing you to setup system from any location. DriveRack® PA2 continues the DriveRack® legacy of great-sounding, powerful, and affordable loudspeaker management processors.
Audio Spectrum Analyzer Pro
Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.
- Octave Band Real Time Analyzer
- FFT Plot (Fast Fourier Transform)
- Sound level meter (dB meter)
- Noise Rating and Noise Criterion support
- Support for external microphones
- Pre-calibrated mic profiles
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Audio Spectrum Analyzer is a powerful real-time audio analysis app. Full of features yet very simple to use. Sound level meter (db meter a-weighted, noise rating, noise criterion) included. Feature Highlights: • Octave Band Real Time Analyzer • FFT Plot (Fast Fourier Transform) • Linear and logarithm scales • Up to 16384 FFT size • A lot of available window functions • Tracking for max value • Max and Min for any selected frequency • Stunned graphics • Reliable measurement accuracy with pre-calibrated profiles for 3 device-integrated mics • Additional precision with integrated support and pre-calibrated profiles for AirPods, AirPods Pro • Safer measurements using the Airpods Pro noise cancellation feature • Support for external microphones (wired or via Bluetooth) • Noise Rating and Noise Criterion support And many many more... Terms of Use: https://www.iubenda.com/terms-and-conditions/94359518
Screenshots
Verdict
The clearest difference is rating: Audio Spectrum Analyzer Pro at 4.4 against DriveRack PA2 Control's 3.2. Audio Spectrum Analyzer Pro also leads on review sentiment (57% vs 34%). DriveRack PA2 Control's advantage is in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. DriveRack PA2 Control asks for nothing beyond the download.
Audio Spectrum Analyzer Pro holds the better App Store score, 4.4 against 3.2. Both are backed by a comparable volume of ratings — 108 and 238 respectively. Written reviews point the same way: 34% of DriveRack PA2 Control's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's.
DriveRack PA2 Control ships an update every 8 months, Audio Spectrum Analyzer Pro every 7 months. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.
| Parameter | DriveRack PA2 Control | Audio Spectrum Analyzer Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (108 ratings) | 4.4 (238 ratings) — better |
| Positive reviews | 34.0% of reviews | 57.4% of reviews — better |
| Number of ratings | 108 | 238 — better |
| Update frequency | Every 8 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 67 MB | 40 MB |
| Age rating | +4 | 4+ |
| Developer | Harman Professional, Inc. | Vlad Polyanskiy |
Customer experience
DriveRack PA2 Control
Audio Spectrum Analyzer Pro
Bugs and requests
DriveRack PA2 Control
Not enough reviews yet to summarise bugs or requests.
Audio Spectrum Analyzer Pro
Reported bugs
11 issues- App crashes on iOS 16 and iOS 26 launches
- FFT resolution not working after iOS updates
- Graph display freezes or becomes unresponsive
- Spectrograph mode too slow on newer iPhones
- Frequency alignment issues with dynamic display
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- App won't uninstall properly
- Malware warnings appearing
- Help links and support pages broken/dead
- Incorrect dB level readings (off by ~20dB)
- Recording functions non-functional
- Half black screen in certain orientations
Requested features
11 requests- Audio file upload capability
- White noise/test signal generator
- Microphone calibration file support
- Recording functionality with timestamp
- Multiple frequency cursors for comparison
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- Ability to compare before/after curves
- Adjustable dB level zoom/scaling
- Saved settings and personalizations
- Audio Unit (AUV3) plugin support
- Peak hold reset button
- Time-domain recording in spectrograph mode
In-app purchases
DriveRack PA2 Control
No in-app purchases
Audio Spectrum Analyzer Pro
- Premium Mode7 Days trial$19.991 Year
- Premium Pack$29.99
Questions
Is DriveRack PA2 Control free?
Is Audio Spectrum Analyzer Pro free?
Which has better reviews, DriveRack PA2 Control or Audio Spectrum Analyzer Pro?
Do DriveRack PA2 Control or Audio Spectrum Analyzer Pro have ads?
Which is updated more often, DriveRack PA2 Control or Audio Spectrum Analyzer Pro?
Other comparisons
