# Spectrum Eye RTA vs DriveRack PA2 Control

The clearest difference is review sentiment: Spectrum Eye RTA at 100% against DriveRack PA2 Control's 34%. Spectrum Eye RTA also leads on rating (4.9 vs 3.2) and update cadence (every 3 weeks vs every 8 months). DriveRack PA2 Control's advantage is price (Free vs $17.99) and in-app purchases (none vs 5). On ads and device support there is nothing between them.

DriveRack PA2 Control is free to download; Spectrum Eye RTA costs $17.99 up front. Spectrum Eye RTA sells 5 one-off in-app purchases. DriveRack PA2 Control asks for nothing beyond the download.

Spectrum Eye RTA holds the better App Store score, 4.9 against 3.2. That said, the two scores are not equally well evidenced: DriveRack PA2 Control has 110 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 100% of Spectrum Eye RTA's written reviews are positive against 34% of DriveRack PA2 Control's.

Spectrum Eye RTA ships an update every 3 weeks, DriveRack PA2 Control every 8 months. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Spectrum Eye RTA | DriveRack PA2 Control |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/spectrum-eye-rta/id794366989/reviews)** | [3.2 (110 ratings)](https://appshunter.io/ios/app/driverack-pa2-control/id817149833/reviews) |
| Number of ratings | 7 | **110** |
| Positive reviews | **100.0% of reviews** | 34.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Paid | **Free** |
| Size | 7 MB | 67 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Oleg Naumenko](https://appshunter.io/developer/576715087) | [Harman Professional, Inc.](https://appshunter.io/developer/410104207) |

## What reviewers say

### Spectrum Eye RTA

[App page](https://appshunter.io/ios/app/spectrum-eye-rta/id794366989)

This audio analysis tool provides real-time frequency spectrum displays for music professionals and students. It offers adjustable settings for detailed sound monitoring, feedback detection, and acoustic analysis on iOS devices.

**Highlights:** Real-time spectrum display, Adjustable FFT sizes and averaging, Selectable microphone input, Scalable and movable plot, Pink noise generator, Supports external microphones

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Genuine Support | $0.99 | one-time |
| Solid Support | $1.99 | one-time |
| Serious Support | $2.99 | one-time |
| Major Support | $3.99 | one-time |
| Mega Support | $4.99 | one-time |


### 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


## Frequently asked questions

### Is Spectrum Eye RTA free?

Spectrum Eye RTA costs $17.99, and also offers in-app purchases.

### Is DriveRack PA2 Control free?

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

### Which has better reviews, Spectrum Eye RTA or DriveRack PA2 Control?

Spectrum Eye RTA is rated higher. Spectrum Eye RTA averages 4.9 out of 5 from 7 ratings, while DriveRack PA2 Control averages 3.2 from 110 ratings.

### Do Spectrum Eye RTA or DriveRack PA2 Control have ads?

Neither Spectrum Eye RTA nor DriveRack PA2 Control shows ads.

### Which is updated more often, Spectrum Eye RTA or DriveRack PA2 Control?

Spectrum Eye RTA ships an update every 3 weeks, and DriveRack PA2 Control every 8 months. Most recently, Spectrum Eye RTA was updated on October 29, 2026 and DriveRack PA2 Control on October 23, 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.*