# Q vs RackLink Discovery

The clearest difference is review sentiment: RackLink Discovery at 100% against Q's 13%. RackLink Discovery also leads on rating (5.0 vs 3.0) and monetization model (free vs free with in-app purchases). Q's advantage is update cadence (every 3 months vs every 36 months) and ratings volume (53 vs 4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RackLink Discovery holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Q has 53 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 13% of Q's written reviews are positive against 100% of RackLink Discovery's.

Q ships an update every 3 months, RackLink Discovery every 36 months. The most recent releases landed on September 29, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Q | RackLink Discovery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (53 ratings)](https://appshunter.io/ios/app/q-sys-uci-viewer/id417461920/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/racklink-discovery/id1574990700/reviews)** |
| Number of ratings | **53** | 4 |
| Positive reviews | 12.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 36 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 25 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QSC Audio Products, LLC.](https://appshunter.io/developer/417461923) | [Legrand AV Inc](https://appshunter.io/developer/1574990702) |

## What reviewers say

### Q

[App page](https://appshunter.io/ios/app/q-sys-uci-viewer/id417461920)

Control Q-SYS systems remotely from your iOS device. Design custom user interfaces in Q-SYS Designer software to manage various system elements like audio, video, and lighting. Offers extensive control capabilities for a seamless user experience.

**Highlights:** Remote system control, Customizable user interfaces (UCIs), Source selection, PTZ camera control with video preview, Lighting dimmer control, Volume faders, Signal meters

**Features:** macOS Compatibility

**In-app purchases:** none


### RackLink Discovery

[App page](https://appshunter.io/ios/app/racklink-discovery/id1574990700)

Easily discover and connect to RackLink™ enabled products on your network. This app provides access to the web browser interface for full control and management of AV industry remote power management systems.

**Highlights:** Discover RackLink enabled products, Connect to PDUs on the same network, Access web browser interface, Full device control and management, Supports Select and Premium+ PDUs

**In-app purchases:** none


## Frequently asked questions

### Is Q free?

Q is free to download, with no in-app purchases.

### Is RackLink Discovery free?

RackLink Discovery is free to download, with no in-app purchases.

### Which has better reviews, Q or RackLink Discovery?

RackLink Discovery is rated higher. Q averages 3.0 out of 5 from 53 ratings, while RackLink Discovery averages 5.0 from 4 ratings.

### Do Q or RackLink Discovery have ads?

Neither Q nor RackLink Discovery shows ads.

### Which is updated more often, Q or RackLink Discovery?

Q ships an update every 3 months, and RackLink Discovery every 36 months. Most recently, Q was updated on September 29, 2026 and RackLink Discovery on June 1, 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.*