Comparison

QVox vs FabFilter Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

FabFilter Pro

This professional audio effect offers a range of natural, vintage, and plate reverb algorithms. It features intuitive controls for seamless integration into mixes, including unique decay rate and space controls for precise sound shaping. Enhance your audio with high-quality presets and advanced features like importable impulse responses.

Highlights
  • Natural, vintage, and plate reverb algorithms
  • Intuitive Space and Decay Rate EQ controls
  • Importable impulse response (IR) feature
  • Built-in Ducking and Thickness controls
  • Surround/immersive audio support
  • High-quality factory presets
Read full description

FabFilter Pro-R 2 is a high-end reverb plug-in with natural, vintage and plate algorithms, combined with intuitive controls. Its advanced algorithms have been carefully designed to blend well with the source and fit easily into a mix. Pro-R is bursting with innovations like the intuitive Space control that seamlessly switches between dozens of room models with automatic decay time adjustment, and the unique Decay Rate EQ that introduces free adjustment of the decay time over the frequency spectrum. Together with the built-in Post EQ and a large number of high-quality factory presets, FabFilter Pro-R 2 delivers great sound quality and is very easy to use. The Pro-R 2 app filters the microphone input and plays it back in real-time. To use Pro-R 2 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-R 2 will appear in the list of Audio Unit extensions for effect plug-ins in the host app. What's new in Pro-R 2? - Brand-new Vintage and Plate algorithms that recreate classic reverb sounds - Thickness control to thicken, compress and saturate all at once - Auto Gate feature to easily get that gated drum reverb sound - Built-in Ducking to allow the reverb to blend in better with the source material - Import IR feature enables you to import an impulse response file (WAV or AIFF) and sets up the reverb and EQ bands to match it - Surround/immersive support in hosts that allow this - Mid/Side and Left/Right options for Post EQ bands - Output level metering - Redesigned, full-featured preset browser Key features: - Beautifully designed room models, ranging from small ambiences and rooms to large concert halls and huge cathedrals - Carefully developed to easily sit in the mix, without causing undesirable coloration, density or phase problems - Gorgeous Retina interface with large interactive reverb display featuring Decay Rate EQ and Post EQ curves - Very easy to set up, with user-friendly, non-technical controls - Space control, which smartly and smoothly combines the room model and decay time of the reverb — choose from over a dozen carefully designed room models and seamlessly vary between them, without hearing clicks or unwanted artifacts - Decay Rate control, changing the overall decay time from 25% to 400% of the current Space setting - Intelligent Stereo Width control, ranging from pure mono to true stereo and beyond - Distance control to adjust the proximity to the sound source in the selected space - Character control that changes the sound from a clean, transparent decay, to a lively reverb with pronounced reflections and echoes — all the way to an over-modulated chorus-like effect - Perfectly tuned Brightness knob, affecting not only overall brightness, but also the decay of high frequencies - Predelay knob, ranging from 0 to 500 ms, with optional tempo sync - Innovative six-band Decay Rate EQ, with Low/High Shelf, Bell and Notch filters. (Compared to the commonly used low- and high crossover system, the Decay Rate EQ opens a world of possibilities by giving you full control over the decay rate at different frequencies.) - Six-band Post EQ to equalize the final reverb sound with Low/High Cut up to 96 dB/oct, Low/High Shelf and Bell filters. (Together with the Decay Rate EQ, this lets you design reverbs of any style or character.) - Real-time spectrum analyzer that also visualizes the decay time at different frequencies - Includes a carefully curated collection of factory presets - Save, restore and organize your own presets - Undo/redo and A/B comparison "Pro-R sounds awesome and is hugely enjoyable and rewarding to work with. Verdict: 9/10!" — Computer Music Magazine "Pro-R is yet another demonstration of the worth of FabFilter's distinctive vision for plug-in design" — Sound On Sound Magazine

Screenshots

QVox3 screens

Verdict

The call

The clearest difference is price: QVox at $14.99 against FabFilter Pro's $39.99. QVox also leads on device support (3 vs 1) and iOS requirement (11.0 vs 14.0). FabFilter Pro's advantage is rating (4.8 vs 4.3) and update cadence (every 3 weeks vs every 5 months). On review sentiment, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

QVox costs $14.99 and FabFilter Pro $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FabFilter Pro holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 17 and 10 respectively. Written reviews point the same way: 64% of QVox's written reviews are positive against 67% of FabFilter Pro's.

UpkeepUpdate frequency

QVox ships an update every 5 months, FabFilter Pro every 3 weeks. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
QVox versus FabFilter Pro: the parameters behind the verdict, then further details
ParameterQVoxFabFilter Pro
Price$14.99 — better$39.99
Rating4.3 (17 ratings)4.8 (10 ratings) — better
Positive reviews63.6% of reviews66.7% of reviews — better
Number of ratings17 — better10
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS11.0 — better14.0
Further details — not scored
Size22 MB7 MB
Age rating4+4+
DeveloperEventideFabFilter

Customer experience

QVox

All ratings17 ratings
Positive76.5%
Neutral11.8%
Negative11.8%
Written reviews11 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

FabFilter Pro

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

QVox

No in-app purchases

None

FabFilter Pro

No in-app purchases

Questions

Is QVox free?
QVox costs $14.99, with no in-app purchases.
Is FabFilter Pro free?
FabFilter Pro costs $39.99, with no in-app purchases.
Which has better reviews, QVox or FabFilter Pro?
FabFilter Pro is rated higher. QVox averages 4.3 out of 5 from 17 ratings, while FabFilter Pro averages 4.8 from 10 ratings.
Do QVox or FabFilter Pro have ads?
Neither QVox nor FabFilter Pro shows ads.
Which is updated more often, QVox or FabFilter Pro?
QVox ships an update every 5 months, and FabFilter Pro every 3 weeks. Most recently, QVox was updated on November 3, 2026 and FabFilter Pro on November 3, 2026.

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