Comparison

Mix Bus Compressor vs ab vortEx X

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

Head to head
About

Mix Bus Compressor

This audio plugin offers ultra-transparent compression with exceptionally low harmonic distortion. Its unique design provides immediate response without adding latency or phase distortion, making it ideal for real-time audio processing. The scalable interface ensures a clear visual experience on all iOS devices.

Highlights
  • Ultra-low harmonic distortion
  • Unique envelope follower
  • Immediate response time
  • No added latency
  • No phase distortion
  • Scalable user interface
Features
Read full description

This compressor has the lowest total harmonic distortion of any plugin we have seen, including desktop units. At the heart of it is a unique envelope follower design that makes it possible to compress the signal without creating distortion harmonics. On the spectrum of compressor tone that ranges from "vintage analog" to "pristine digital", this plugin sits at the extreme end of low-noise digital clarity, but it is different from other low-noise digital designs because it doesn't use digital look-ahead. Therefore its response time is immediate, it adds no extra delay to the signal chain, and it works great for processing real-time performance effects. It uses no oversampling so there is no phase distortion or loss of high-frequency energy from anti-aliasing filters. It also uses no digital-style filters (FIR filters) and no digital look-ahead, so it adds no additional latency to the signal chain. Although it is not a model of an existing piece analog hardware, every component of its signal path is realizable in the analog domain. We think of it as a digital model of our ideal analog compressor: it could exist as an analog circuit but would be very expensive to build with physical analog electronic parts. The user interface is 100% scalable, designed specifically for iOS, so it looks beautiful at any screen size or orientation, from tiny portrait views in AUM on iPhone to the largest full-screen views on iPad Pro.

About

ab vortEx X

This app is a stereo-only abstract spacetime designer for creating unique reverberations. It functions as an AUv3 plugin for compatible iOS hosts or as a standalone application, offering control over sound reflection spread.

Highlights
  • Stereo-only spatial audio algorithms
  • AUv3 plugin compatibility
  • Standalone application mode
  • Touch screen interface
  • Control over sound reflection spread
  • Space, Time, Viscosity, Volumes controls
Features
Read full description

'ab vortEx X' for iOS is a 'Light', stereo-only version of 'ab vortEx', an abstract spacetime designer for creating infinite variations of reverberations using our Spatial Audio algorithms under the hood. 'ab vortEx' for iOS comes as an AUv3 Plugin and is compatible with any iOS host that supports AUv3 (e.g. Garageband). The plugin contains a minimalist interface, compatible with Touch Screens - as you move through the screen, you can control how the algorithm works and how the reflections of the sound spread through time and space. 'ab Vortex X' also works as a stand-alone application (make sure you wear headphones or use a soundcard). 'ab vortEx X' supports Stereo signals and contains the most critical controls of 'ab Vortex' (Space, Time, Viscosity and Volumes) for providing quick ways to manipulate your sound.ab vortEx' for iOS works with Mono and Stereo signals.

Screenshots

Mix Bus Compressor4 screens
ab vortEx X3 screens

Verdict

The call

The clearest difference is rating: ab vortEx X at 4.6 against Mix Bus Compressor's 3.9. ab vortEx X also leads on review sentiment (88% vs 75%). Mix Bus Compressor's advantage is price ($5.99 vs $12.99). 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

CostPrice · In-app purchases · Ads · Monetization

Mix Bus Compressor costs $5.99 and ab vortEx X $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ab vortEx X holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 8 and 8 respectively. Written reviews point the same way: 75% of Mix Bus Compressor's written reviews are positive against 88% of ab vortEx X's.

UpkeepUpdate frequency

Mix Bus Compressor ships an update every 6 weeks, ab vortEx X every 2 months. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
Mix Bus Compressor versus ab vortEx X: the parameters behind the verdict, then further details
ParameterMix Bus Compressorab vortEx X
Price$5.99 — better$12.99
Rating3.9 (8 ratings)4.6 (8 ratings) — better
Positive reviews75.0% of reviews87.5% of reviews — better
Number of ratings88
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.2 — better11
Further details — not scored
Size25 MB7 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedAlejandro Cabrera Zuniga

Customer experience

Mix Bus Compressor

All ratings8 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

ab vortEx X

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

In-app purchases

None

Mix Bus Compressor

No in-app purchases

None

ab vortEx X

No in-app purchases

Questions

Is Mix Bus Compressor free?
Mix Bus Compressor costs $5.99, with no in-app purchases.
Is ab vortEx X free?
ab vortEx X costs $12.99, with no in-app purchases.
Which has better reviews, Mix Bus Compressor or ab vortEx X?
ab vortEx X is rated higher. Mix Bus Compressor averages 3.9 out of 5 from 8 ratings, while ab vortEx X averages 4.6 from 8 ratings.
Do Mix Bus Compressor or ab vortEx X have ads?
Neither Mix Bus Compressor nor ab vortEx X shows ads.
Which is updated more often, Mix Bus Compressor or ab vortEx X?
Mix Bus Compressor ships an update every 6 weeks, and ab vortEx X every 2 months. Most recently, Mix Bus Compressor was updated on September 30, 2026 and ab vortEx X on September 24, 2026.

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