Q vs RackLink Discovery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Q
Control Q-SYS systems remotely from your iOS device. Create custom user interfaces to manage nearly any system element, including camera controls, lighting, volume, and more. Requires Q-SYS Platform and license activation.
- Customizable user control interfaces (UCIs)
- Control and monitor Q-SYS system elements
- Source selection buttons
- Q-SYS PTZ camera controls with video preview
- Lighting dimmer and projector controls
- Volume faders and signal meters
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Control Q-SYS systems from your iOS device! Within Q-SYS Designer software, user control interfaces (UCIs) can be created, and nearly any element in the system can be placed in the UCIs for control and monitoring. This enables a near limitless array of control capability, all from your iOS device, including source selection buttons, Q-SYS PTZ camera controls (with video preview frames), lighting dimmer controls, projector on/off selector, signal meters, screen up/down, snapshot recall, volume control faders, and more. This app is designed for use with QSC's Q-SYS Platform only. Q-SYS UCI deployment onto a Core processor for use with TSC touch screens, UCI viewer for PC and iOS app requires license activation. Visit www.qsc.com/uci for more details.
RackLink Discovery
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.
- 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
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Download the app on your phone or tablet to easily discover and connect to all your RackLink™ enabled products on the same network as your device. RackLink is the AV industry’s premier remote power management system. - Connect to both Select PDUs or Premium+ PDUs with RackLink on the same network - This app opens the web browser interface for the RackLink enabled products for full control and management of the devices.
Screenshots
Verdict
The clearest difference is review sentiment: RackLink Discovery at 100% against Q's 19%. RackLink Discovery also leads on rating (5.0 vs 3.0) and iOS requirement (12.0 vs 15.6). Q's advantage is update cadence (every 3 months vs every 36 months) and ratings volume (56 vs 4). On price, ads, in-app purchases and monetization model 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. 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 56 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 19% 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 November 6, 2026 and November 3, 2026 respectively.
| Parameter | Q | RackLink Discovery |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (56 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 18.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 56 — better | 4 |
| Update frequency | Every 3 months — better | Every 36 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | QSC Audio Products, LLC | Legrand AV Inc |
Customer experience
Q
RackLink Discovery
In-app purchases
Q
No in-app purchases
RackLink Discovery
No in-app purchases
