Comparison

AudioZone vs M/S Processor 2

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

Head to head
About

AudioZone

Organize and play audio files with advanced playback controls and effects. Create rich-text notes for each track and capture recordings with a built-in studio mixer. Sync across devices with optional cloud services.

Highlights
  • Audio library organization with groups
  • Audiophile-grade playback effects
  • Rich-text notes per track
  • Multi-take recording studio
  • Live waveform with looping
  • Cross-device cloud sync
Features
Read full description

AudioZone is a fast, beautiful audio library, player, and notes app for producers, engineers, artists, and anyone who lives in their files. Organize tracks into groups, take rich-text notes, and play back with audiophile-grade effects — speed, pitch, EQ, reverb, delay, and an A-B loop. Capture quick recordings, then layer takes in a built-in studio that mixes everything sample-accurate on iOS. Highlights • Library + groups with custom sort, swipe actions, and multi-select • Live waveform with zoomed timeline and gapless looping • Effects: speed, pitch, 5-band EQ, reverb, delay, A-B loop, export with effects baked in • Rich-text notes per track, auto-saved • Recording with a studio-style mini DAW — multi-take, per-take effects, draggable timeline • Link mode: open your library in any browser on the same Wi-Fi • Free iCloud backup that merges every device on your Apple ID — nothing is overwritten • Optional Cloud Sync (Pro): sign in with Apple or Google to sync audio files across iOS, iPadOS, and macOS Pro Cloud Sync of your full library — including audio files — for $9.99 / month. Subscription auto-renews; manage in Settings → Apple ID → Subscriptions.

About

M/S Processor 2

This app allows you to manipulate the mid and side components of a stereo audio signal. You can adjust their levels, mute them, or flip their polarity before recombining them. It functions as an Audio Unit (AUv3) within music production hosts or as a standalone application.

Highlights
  • Mid/side stereo signal splitting
  • Independent level control for mid and side
  • Mute and polarity flip for mid/side
  • Inline, decode, and encode modes
  • Automation support
  • Adaptable layout for various screen sizes
Features
Read full description

Your stereo image, in two parts. M/S Processor 2 splits a stereo signal into its mid (what both sides share) and its side (what sets them apart), lets you turn each up or down, mute it or flip its polarity, and puts them back together. Rebuilt from the ground up, it runs as an Audio Unit (AUv3) inside GarageBand, AUM, Logic Pro and any other host, and on its own with an audio interface. THREE WAYS IN AND OUT • Inline: left and right in, left and right out. Widen a mix, narrow it, or bring a centered voice forward. • Decode: record with a mid/side microphone pair, a cardioid facing the source and a figure-8 across it, and hear it as left and right while you play. • Encode: turn left and right into mid and side for the effects that come after it, and decode them back at the end of the chain. EVERY PART UNDER YOUR HAND • A fader for the mid and one for the side, from −48 to +24 dB, each over its own meter. • Mute and polarity for each, and a link that moves both gains together. • Swap left and right before anything else, and bypass to compare. • Input and output meters named by what they carry, L and R or M and S, with held peaks and clip indicators. • Every control can be automated from your host. • A notice when the input is mono, which leaves the side with nothing to work on. MADE FOR EVERY SCREEN M/S Processor 2 lays itself out for the space it's given: an iPhone upright or sideways, an iPad, iPhone Duo folded or open, and a plugin slot in a host, from GarageBand's compact strip to a whole panel. QUIET BY DEFAULT On its own, the app starts with its output muted, so a microphone never feeds back through the speaker next to it. A LONG STORY Alan Blumlein described mid/side recording in his 1931 stereo patent, and engineers have relied on it ever since. M/S Processor first came to the iPad in 2013; this is its second life. From Monolith DSP. Terms of Use: https://monolith-dsp.com/terms/ Privacy Policy: https://monolith-dsp.com/privacy/

Screenshots

AudioZone4 screens
M/S Processor 24 screens

Verdict

The call

The clearest difference is in-app purchases: M/S Processor 2 at none against AudioZone's 1. AudioZone's advantage is ratings volume (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, rating, ads 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

Both are free to download. AudioZone sells 1 in-app purchase, starting at $9.99 per month. M/S Processor 2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for AudioZone against 5.0 for M/S Processor 2. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Scorecard4 real differences · 6 level
AudioZone versus M/S Processor 2: the parameters behind the verdict, then further details
ParameterAudioZoneM/S Processor 2
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 2 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size50 MB44 MB
Age rating4+4+
DeveloperMarcus McCallumRuben Nine Blanco

In-app purchases

1 purchases

AudioZone

Subscriptions1
  • AudioZone Pro$9.991 Month
None

M/S Processor 2

No in-app purchases

Questions

Is AudioZone free?
AudioZone is free to download, with in-app purchases available.
Is M/S Processor 2 free?
M/S Processor 2 is free to download, with no in-app purchases.
Which has better reviews, AudioZone or M/S Processor 2?
AudioZone and M/S Processor 2 are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do AudioZone or M/S Processor 2 have ads?
Neither AudioZone nor M/S Processor 2 shows ads.

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