Comparison

Mix Bus Compressor vs AU EngineCore

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
Currently charting
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

AU EngineCore

Features
Read full description

AU EngineCore app effectively transforms any compatible multi-channel audio interface into a fully configurable digital mixer for live performance. Unlike traditional digital mixers, AU EngineCore offers a software-defined mixing environment, giving users complete control over routing, processing, and signal flow without hardware limitations. A key advantage is the ability to use studio-grade AUv3 plugins directly in live scenarios, enabling advanced processing and creative flexibility that typically requires dedicated studio setups. Built for precision, speed, reliability and real-time performance, AU EngineCore delivers ultra-low latency audio processing, flexible routing, and a clean, distraction-free interface. Key Features • Ultra-low latency audio engine for real-time performance • Advanced multi-bus routing with flexible signal flow • AU plugin support (inserts on channels, buses, and master) • Designed to work seamlessly with most multi-input audio interfaces • Stable performance even in complex live setups • Clean, classic interface optimized for fast operation • Real-time processing with no interruptions or audio artifacts in Live Mode • Multi-channel input and output support • Built for musicians, performers, and sound engineers Built for Live AU EngineCore is engineered to handle demanding live scenarios where stability and speed matter most. Every part of the engine is optimized to ensure smooth operation, even under heavy load. Flexible Audio Setup Connect your audio interface and build your mix the way you want: Route signals across multiple buses Insert AU effects anywhere in the chain Customize your workflow to meet your specific needs. Precision Without Distraction The interface is designed to stay out of your way, so you can focus on what matters: your sound. #nobodysbanda

Screenshots

Mix Bus Compressor4 screens
AU EngineCore3 screens

Verdict

The call

The clearest difference is price: Mix Bus Compressor at $5.99 against AU EngineCore's $22.99. Mix Bus Compressor also leads on chart position (#194 vs unranked) and iOS requirement (10.2 vs 16.6). AU EngineCore's advantage is update cadence (weekly vs every 6 weeks). On ads, in-app purchases and device support 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 AU EngineCore $22.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mix Bus Compressor ships an update every 6 weeks, AU EngineCore weekly. The most recent releases landed on September 11, 2026 and September 14, 2026 respectively.

Scorecard4 real differences · 7 level
Mix Bus Compressor versus AU EngineCore: the parameters behind the verdict, then further details
ParameterMix Bus CompressorAU EngineCore
Price$5.99 — better$22.99
Rating3.9 (8 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#194 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.2 — better16.6
Further details — not scored
Size25 MB13 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedAntonio Sorin TASU

In-app purchases

None

Mix Bus Compressor

No in-app purchases

None

AU EngineCore

No in-app purchases

Questions

Is Mix Bus Compressor free?
Mix Bus Compressor costs $5.99, with no in-app purchases.
Is AU EngineCore free?
AU EngineCore costs $22.99, with no in-app purchases.
Do Mix Bus Compressor or AU EngineCore have ads?
Neither Mix Bus Compressor nor AU EngineCore shows ads.
Which is updated more often, Mix Bus Compressor or AU EngineCore?
Mix Bus Compressor ships an update every 6 weeks, and AU EngineCore weekly. Most recently, Mix Bus Compressor was updated on September 11, 2026 and AU EngineCore on September 14, 2026.

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