SVS vs QRS Tracks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SVS
Control and optimize your SVS subwoofer's performance with advanced DSP features. Adjust volume, fine-tune audio for music and movies, and correct room anomalies for the deepest, tightest bass.
- Advanced DSP functionality
- Room anomaly correction
- Customizable presets
- Volume control
- Low pass filter adjustment
- Parametric EQ
- Port tuning
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The SVS app is the easiest way to unleash the full potential of your SVS 17-Ultra RIEvolution, 5000 Series R|Evolution, 3000 R|Evolution, 16-Ultra, 4000 Series, 3000 Series, 3000 Micro, 3000 In-Wall, 2000 Pro Series, and 1000 Pro Series subwoofers by allowing advanced DSP functionality and optimization based on your room, speakers and personal listening preferences. The SVS app lets you do simple things like control volume and create custom presets that enable easy, one-touch tuning for music, movies, and other content. More advanced functionality of the SVS subwoofer app includes the ability to correct room anomalies and fine-tune low frequency output so you can enjoy the full depth, force, and nuance from the world’s finest subwoofers. When used with your SVS subwoofer, the app takes the mystery out of subwoofer digital signal processing (DSP) by clearly explaining each feature and providing easy control from your mobile device. If you’re new to subwoofer DSP, the SVS app has a helpful tutorial that guides you through the different settings. With a few simple adjustments, you can eliminate boomy spots, set crossover frequencies, and make other adjustments to get the deepest, tightest, and most accurate in-room response possible from your SVS subwoofer. You can make adjustments from the comfort of your favorite seat or even when the subwoofer is not in site. With SVS, you can easily optimize settings for: • Volume Control • Low Pass Filter • Phase • Polarity • Parametric EQ • Room Gain Compensation • Port Tuning (Ported models only) • Custom Presets • System Settings And More The SVS app works with Apple iOS 13.0 or newer. The app is also available for SVS 13-Ultra Amplifier Upgrade Kits for existing owners of the SVS SB13, PB13, PC13-Ultra, PB12-PLUS, and PC12-PLUS Subwoofers. Have questions, problems or feedback? Contact us at custservice@svsound.com or 877.626.5623.
QRS Tracks
Capture musical ideas and performances on the go with audio and biometric data. Upload to a cloud account for playback, analysis, and sharing with others. Integrates with Apple Health for heart rate and steps.
- On-the-fly audio and biometric recording
- Cloud saving to QRS-Connect.com
- Playback with graphical biometric data
- Auto-naming and archiving of tracks
- Control track visibility
- Integration with Apple Health
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The QRS-Tracks App and Apple Watch App provides a means of quickly and seamlessly capturing your music work product and creativity on the fly (any instrument(s) or vocal). It can then be saved to your music focused QRS-Connect.com cloud account. Allows a music creator to quickly capture their music with additional data that’s outside of the standard Apple Voice Memo or having to open up your studio. It is then auto named and saved to a free music focused cloud account at QRS-Connect.com where you can attend to it later. The Application’s main functionality currently, is to record audio along with the user's biometric data that is pertinent to the performance. The recorded audio along with its relevant data can be uploaded from iphone/ Apple Watch to the qrs-connect.com website. On this website all uploaded audio can be played, along with graphical representations of the changes in time of your performance biometrics, like motion, heart rate and location. The data is auto named, auto saved and archived for easy retrieval, reporting, sharing, comments and analytics. All users registered on the app can login to the QRS-Connect.com website to control visibility of tracks to just you, or your various groups and followers. QRS-Connect.com also gives you control as to what data is gathered. This app uses the Health app to get user's heart rate and steps count during audio recording. The device uses location to get path of user during audio recording. It uses motion data to get the device motion during audio recording. Graphical representation of the biometrics are drawn as a part of audio playback on the qrs-connect.com website. Account creation at QRS-Connect.com can be done on the App or at the QRS-Connect.com website.
Screenshots
Verdict
The clearest difference is rating: QRS Tracks at 5.0 against SVS's 4.2. QRS Tracks also leads on review sentiment (100% vs 68%) and device support (4 vs 2). SVS's advantage is ratings volume (95 vs 9). On price, update cadence, ads and in-app purchases 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.
QRS Tracks holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: SVS has 95 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 68% of SVS's written reviews are positive against 100% of QRS Tracks's.
SVS ships an update every 2 months, QRS Tracks every 6 weeks. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.
| Parameter | SVS | QRS Tracks |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (95 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 68.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 95 — better | 9 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 34 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Specialty Technologies, LLC. | QRS Music |
Customer experience
SVS
QRS Tracks
Bugs and requests
SVS
Reported bugs
15 issues- App crashes frequently
- Never reconnects to sub, requires reinstallation
- Preset saving is unreliable or doesn't work
- Bluetooth connection issues (out of range, drops)
- Phantom BLE connection locks out other devices
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- iPhone gestures interfere with app navigation (swipe up)
- Save Preset button is not visible/executable on iPhone 14 Pro
- Options button not showing up after selecting home screen options
- Preset selection not properly shown on screen when swapping
- App maintains a phantom BLE connection
- Auto On not working
- Amplifier plate issues
- App resets itself on opening
- Subwoofer not in range reported
- Preset is set to none in the app periodically
Requested features
20 requests- Group subs for simultaneous adjustments
- Mute function
- Auto room correction
- Widget for quick preset changes
- Apple Watch app for adjustments
Show 15 moreShow fewer
- Desktop/Mac app support
- Language options (e.g., French)
- Standby/Active mode indicator
- API for home automation integration
- Native Windows/Mac/Linux control
- Expanded explanations for settings
- iPad support
- Group control for gain adjustments
- Dropdown menu for switching between subs
- Always-on display option
- Automatic recognition of sealed mode
- Support for multiple devices simultaneously
- Net frequency response display with EQs
- Option to go back in menus
- Dark mode
QRS Tracks
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SVS
No in-app purchases
QRS Tracks
No in-app purchases









