Mix Bus Compressor vs AU EngineCore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Ultra-low harmonic distortion
- Unique envelope follower
- Immediate response time
- No added latency
- No phase distortion
- Scalable user interface
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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.
AU EngineCore
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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
Verdict
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
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.
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.
| Parameter | Mix Bus Compressor | AU EngineCore |
|---|---|---|
| Price | $5.99 — better | $22.99 |
| Rating | 3.9 (8 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #194 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.2 — better | 16.6 |
| Further details — not scored | ||
| Size | 25 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Mangoo Consulting Company Limited | Antonio Sorin TASU |
In-app purchases
Mix Bus Compressor
No in-app purchases
AU EngineCore
No in-app purchases
Questions
Is Mix Bus Compressor free?
Is AU EngineCore free?
Do Mix Bus Compressor or AU EngineCore have ads?
Which is updated more often, Mix Bus Compressor or AU EngineCore?
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