Comparison

Mozaic Plugin Workshop vs Choir App

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

Head to head
About

Mozaic Plugin Workshop

Design and build your own custom MIDI plugins for music production. This tool offers a simple yet powerful scripting language and pre-built components to create filters, sequencers, and generative music tools. It integrates with AUv3 MIDI hosts for seamless workflow.

Highlights
  • Custom MIDI plugin creation
  • Easy-to-learn scripting language
  • Generative music tools
  • MIDI filters and sequencers
  • AUv3 support
  • Tilt sensor integration
  • Built-in script editor
Features
Read full description

Create your own MIDI plugins: MIDI filters, generative music tools, basic sequencers, MIDI control panels, chaos experiments... Let your imagination take you places. Mozaic runs inside your favorite AU MIDI host, and gives you practical building blocks such as LFOs, pre-fab GUI layouts, musical scales, AUv3 support (with AU Parameters, transport events, tempo syncing, etc.), random generators and a super-simple yet powerful script language. Mozaic even offers quick access to your device’s Tilt Sensors for expressive interaction concepts! The Mozaic Script language is designed from the ground up to be the easiest and most flexible MIDI language on iOS. A language by creatives, for creatives. You’ll only need to write a few lines of script to achieve impressive things - or to create that uber-specific thing that was missing from your MIDI setup. Check out the Programming Manual on Ruismaker.com to learn about the script language and to get inspiration for awesome scripts of your own. Mozaic comes with a sizable collection of tutorials and pre-made scripts which you can use out of the box, or which can be a starting point for your own plugin adventures. Features in a nutshell: - Easy to learn Mozaic Script language: easy to learn, easy to read - Sample-accurate-everything: the tightest MIDI timing possible - Built-in script editor with code-completion, syntax hints, etc. - 5 immediately usable GUI layouts, with knobs, sliders, pads, etc. - In-depth, helpful programming manual available on Ruismaker.com - Easy access to LFOs, scales, MIDI I/O, AU parameters, timers - Supports Sysex, with built-in checksum calculations - AUv3; so you'll get multi-instance, state-saving, tempo sync and resource efficiency out of the box Mozaic opens up the world of creative MIDI plugins to anyone willing to put in a few hours and a hot beverage or two. Practical notes: - Mozaic requires a plugin host with support for AUv3 MIDI plugins (AUM, ApeMatrix, Cubasis, Auria, Audiobus 3, etc.) - The standalone mode of Mozaic lets you edit, test and export projects, but for MIDI connections you need to run it inside an AUv3 MIDI host - MIDI is not sound; Mozaic on its own does not make noise... so bring your own synths, drum machines and other instruments! - AUv3 MIDI requires iOS11 or higher

About

Choir App

This app provides singers with a centralized platform for sheet music, practice recordings, and choir announcements. Users can join existing groups or establish their own to facilitate resource sharing among members.

Highlights
  • Access sheet music
  • Practice recordings
  • View announcements
  • Join existing choirs
  • Create new choirs
  • Share resources
Features
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Choir helps singers access sheet music, practice recordings, and important announcements - all in one app. You can join an existing choir or create your own group to share resources with your members. By using this app, you agree to Apple's standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mozaic Plugin Workshop4 screens
Choir App4 screens

Verdict

The call

The clearest difference is price: Choir App at Free against Mozaic Plugin Workshop's $1.99. Choir App also leads on update cadence (weekly vs every 3 months). Mozaic Plugin Workshop's advantage is in-app purchases (none vs 2) and ratings volume (81 vs 2). On rating, review sentiment, 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

Choir App is free to download; Mozaic Plugin Workshop costs $1.99 up front. Choir App sells 2 in-app purchases, starting at $0.99 per month. Mozaic Plugin Workshop 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 Mozaic Plugin Workshop against 5.0 for Choir App. That said, the two scores are not equally well evidenced: Mozaic Plugin Workshop has 81 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 95% of Mozaic Plugin Workshop's written reviews are positive against 100% of Choir App's.

UpkeepUpdate frequency

Mozaic Plugin Workshop ships an update every 3 months, Choir App weekly. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
Mozaic Plugin Workshop versus Choir App: the parameters behind the verdict, then further details
ParameterMozaic Plugin WorkshopChoir App
Price$1.99Free — better
Rating5.0 (81 ratings)5.0 (2 ratings)
Positive reviews94.6% of reviews100.0% of reviews — better
Number of ratings81 — better2
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.4 — better16.4
Further details — not scored
Size3 MB99 MB
Age rating4+4+
DeveloperBram BosTobias Terhoeven

Customer experience

Mozaic Plugin Workshop

All ratings81 ratings
Positive98.8%
Neutral1.2%
Negative0.0%
Written reviews37 reviews
Positive94.6%
Neutral2.7%
Negative2.7%

Choir App

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mozaic Plugin Workshop

No in-app purchases

2 purchases

Choir App

Subscriptions2
  • Choir Plus Monthly1 Month trial$0.991 Month
  • Choir Plus Yearly1 Month trial$9.991 Year

Questions

Is Mozaic Plugin Workshop free?
Mozaic Plugin Workshop costs $1.99, with no in-app purchases.
Is Choir App free?
Choir App is free to download, with in-app purchases available.
Which has better reviews, Mozaic Plugin Workshop or Choir App?
Mozaic Plugin Workshop and Choir App are both rated 5.0 out of 5 on the App Store, from 81 and 2 ratings respectively.
Do Mozaic Plugin Workshop or Choir App have ads?
Neither Mozaic Plugin Workshop nor Choir App shows ads.
Which is updated more often, Mozaic Plugin Workshop or Choir App?
Mozaic Plugin Workshop ships an update every 3 months, and Choir App weekly. Most recently, Mozaic Plugin Workshop was updated on September 28, 2026 and Choir App on September 27, 2026.

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