Mix Bus Compressor vs AudioScope
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.
AudioScope
This audio plugin offers a comprehensive suite of tools for mixing and mastering music. It allows users to compare their mixes to reference tracks, visualize frequency responses, and control their entire mix from a single interface. Advanced features include snapshot morphing, track grouping, and built-in EQ and compression.
- Multi-channel live mixer
- Reference track comparison
- Frequency response visualization
- Snapshot morphing
- Track grouping
- Built-in EQ and compression
- MIDI control
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AudioScope is an invaluable audio plugin for mixing and mastering with a toolbox of additional mixing aids. It was originally created as a method for comparing your mix to a reference track and seeing exactly what frequencies to tweak in order to obtain a desired match. This alone is incredibly useful for creating the feel of a particular genre of music, by tweaking your mix to match. AudioScope is so much more than this! It includes a great visual mixer which enables you control your entire mix from a single window inside your DAW. You see a top-down visualisation of your entire mix and stereo balance. You can save up to 3 compare mixes and quickly switch between them. You can also save up to 12 snapshots of stereo positions and levels, then morph between them. All of this functionality is available via MIDI, so with one simple CC command, you can switch out one mix for another or engage a snapshot. You are able to group your drums and other elements so that the mix doesn't become overwhelming, allowing you to focus on a subset of key elements if you wish. AudioScope also includes a suite of tools to adjust EQ, compression, and overall balance of your mix. The way AudioScope works is unique, with a quick and easy workflow: Insert an instance of AudioScope on each of your track's Insert Effect slot and name the track. Now simply open one of the instances and you have the ability to control all tracks from a single window. AudioScope is equiped with its own shelf and peak filters, EQ and lookahead compressor (with Sidechain). You can find demonstrations and tutorials for this and all my apps on the 'Paul the MusicMan' YouTube channel. Features: ○ Take control of your host DAW using a single simple interface. ○ Compare your master mixes frequency response to a reference track for a given genre. ○ Compare tracks to see which frequency ranges are problematic graphically. ○ Control your DAW's entire mix from a single 2D live mixer. ○ Change the EQ of each track quickly and easily from a single window. ○ Includes the ability to add low and high shelf filters to each track. ○ Add up to 3 parameteric EQ's to each track to cut or boost frequency ranges. ○ Enable the internal look ahead sidechain compressor. ○ Capture up to 3 compare mixes and preview in real time. ○ Create up to 12 snapshots and fade from one to another. ○ Invert the phase of tracks to avoid phasing issues. ○ Remove DC option to remove unwanted noise and rumble below 60Hz. ○ Instant Pass Thru to bypass all instances of AudioScope. ○ Mix lock to prevent accidental changes to your mix. ○ Monitor up to 32 tracks at once.
Screenshots
Verdict
The clearest difference is rating: AudioScope at 4.7 against Mix Bus Compressor's 3.9. AudioScope also leads on review sentiment (100% vs 75%). Mix Bus Compressor's advantage is in-app purchases (none vs 4) and update cadence (every 6 weeks vs every 3 months). On ratings volume, ads, monetization model 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 AudioScope $7.99 up front. AudioScope sells 4 one-off in-app purchases. Mix Bus Compressor asks for nothing beyond the download.
AudioScope holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews point the same way: 75% of Mix Bus Compressor's written reviews are positive against 100% of AudioScope's.
Mix Bus Compressor ships an update every 6 weeks, AudioScope every 3 months. Both last shipped on October 16, 2026.
| Parameter | Mix Bus Compressor | AudioScope |
|---|---|---|
| Price | $5.99 — better | $7.99 |
| Rating | 3.9 (8 ratings) | 4.7 (9 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 | 9 — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.2 — better | 13 |
| Further details — not scored | ||
| Size | 25 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Mangoo Consulting Company Limited | 4Pockets.com |
Customer experience
Mix Bus Compressor
AudioScope
In-app purchases
Mix Bus Compressor
No in-app purchases
AudioScope
- Small Tip$1.99
- Medium Tip$2.99
- Large Tip$4.99
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- Huge Tip$9.99









