FabFilter Pro vs QVox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FabFilter Pro
This professional audio plug-in offers a high-quality equalizer with up to 24 bands, featuring dynamic EQ, linear phase processing, and an intuitive interface. It allows for precise sound shaping with advanced features like spectrum analysis and EQ matching.
- Up to 24 bands with diverse filter types
- Dynamic EQ for every band
- Natural Phase and Linear Phase processing
- Real-time spectrum analyzer with collision detection
- Spectrum Grab for direct adjustment
- EQ Match for tonal characteristic transfer
- Per-band stereo, left, right, mid, or side mode
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FabFilter Pro-Q 3 is a top-quality EQ plug-in with up to 24 bands, perfect analog modeling, dynamic EQ, linear phase processing, and a gorgeous interface with unrivalled ease of use. With its unique Natural Phase mode, it matches both the magnitude and phase response of analog EQing perfectly. Innovative features like Spectrum Grab and collision detection together with its intelligent interactive EQ display make Pro-Q 3 an absolute joy to use. The Pro-Q 3 app filters the microphone input and plays it back in real-time. To use Pro-Q 3 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-Q 3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app. Key features: - Professional mastering-grade EQ plugin with exceptional sound quality - Up to 24 bands with a huge range of filter types - (New) Dynamic EQ option for every band - Filter shapes: Bell, Notch, High/Low Shelf, High/Low Cut, Band Pass, Tilt Shelf, Flat Tilt (New) - 6-96dB/octave slopes for all filter types - (New) Additional Brickwall slope for the High Cut and Low Cut filters - (New) Per-band Stereo, Left, Right, Mid or Side mode - Zero Latency, Natural Phase and Linear Phase processing modes - Powerful real-time spectrum analyzer - (New) External spectrum visualization from any other Pro-Q 3 instance in the session, including collision detection - Spectrum Grab: grab and adjust a peak directly in the spectrum analyzer (Improved) - EQ Match for imposing the tonal characteristics of one signal on another - Extremely efficient processing and low memory usage - Intelligent multiband selection and editing - Intelligent band solo mode - Piano Display switches the frequency scale to musical note values - Separate Mastering (3/6dB) and Mixing (12/30dB) display ranges - Save, restore and organize presets - Optional Gain-Q interaction - Auto Gain and Gain Scale - Phase Invert option to change polarity - Large output level meter with peak level readout - MIDI Learn with option to control the currently active band - Undo/redo and A/B comparison "Pro-Q 3 is a wonderful update to an (arguably) already class-leading equalizer. The best just got better! Verdict: 10/10!" — Future Music Magazine "Pro-Q 3 is unarguably one of the finest EQ plug-ins around. [...]. Outstanding! Verdict: 10/10!" — Computer Music Magazine
QVox
This app transforms audio into four independent voices with pitch shifting and delay. Create harmonies, widen instruments, and design rhythmic sequences by controlling key, scale, and voice parameters in real-time.
- Four independent voices with pitch shifting and delay
- Selectable key and scale for harmonies
- Adjustable delay intervals and tempo sync
- Real-time parameter control with Ribbon controller
- Factory and user presets
- Mixlock for consistent auditioning
- AUv3 plugin and Standalone app
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QVox is a creative audio effect that transforms vocals, guitars, drums, and synths into four independent voices. Create beautiful harmonies, widen instruments and design groovy rhythmic sequences with diatonic pitch shifting and delay. You can choose the key, scale, and each voice’s pitch and delay interval, with the ability to alter any parameters in real-time using the Ribbon controller. Features: - Four independent voices (labeled as A, B, C, D) with diatonic pitch shifting and delay. - Select Key and Scale to create harmonies that coincide with your compositions or use the Learn button to set the key by the incoming note you play. - Group the four delays so that they are evenly spaced or spread out. - Sync the delays to tempo, or a value of your own choosing. - The Ribbon controller allows for dynamic modification of several knobs at once to easily morph between settings. - Factory presets help get you started or create your own User presets. - Mixlock helps when auditioning different presets by enabling a global Mix value that will remain constant for every subsequently loaded preset. - Available as an Audio Units AUv3 plug-in and Standalone App.
Screenshots
Verdict
The clearest difference is price: QVox at $14.99 against FabFilter Pro's $29.99. QVox also leads on device support (3 vs 1) and iOS requirement (11.0 vs 14.0). FabFilter Pro's advantage is rating (4.7 vs 4.3) and review sentiment (78% vs 64%). On ratings volume, 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
FabFilter Pro costs $29.99 and QVox $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
FabFilter Pro holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 47 and 17 respectively. Written reviews point the same way: 78% of FabFilter Pro's written reviews are positive against 64% of QVox's.
Both ship on a similar rhythm, roughly every 5 months. Both last shipped on November 3, 2026.
| Parameter | FabFilter Pro | QVox |
|---|---|---|
| Price | $29.99 | $14.99 — better |
| Rating | 4.7 (47 ratings) — better | 4.3 (17 ratings) |
| Positive reviews | 77.8% of reviews — better | 63.6% of reviews |
| Number of ratings | 47 — better | 17 |
| Update frequency | Every 5 months | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | FabFilter | Eventide |
Customer experience
FabFilter Pro
QVox
In-app purchases
FabFilter Pro
No in-app purchases
QVox
No in-app purchases









