iSyn Poly vs Mozaic Plugin Workshop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSyn Poly
Create electronic music with three virtual analog synthesizers and a drum machine. Features a full sequencer for arranging songs and live editing capabilities. Supports external MIDI keyboards for enhanced control.
- Three programmable virtual analog synthesizers
- Sample playback drum machine with 17 kits
- Full-featured four-track sequencer
- Gesture-oriented user interface for live editing
- Support for CoreMIDI compatible hardware keyboards
- Global effects unit with phaser, flanger, chorus, and delay
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iSyn Poly is an electronic music studio for use with Apple iPad. iSyn Poly places an unbelievable number of features including three studio-quality, fully programmable virtual analog synthesizers and a drum machine packed in just three different screens on your iPad ! Each synthesizer is a full-featured analog modeling synth with three oscillators, a classic 24 db/oct ladder-style lowpass filter, independent filter and amp envelope generators, and full modulation routings. With our 10+ years of experience with analog simulations you can expect some serious sound easily covering all those fat frequencies so prevalent in modern production. iSyn Poly also includes a sample playback-based drum machine with seventeen kits, each containing eight samples. Drum samples include 808, 909, modular synth drums and numerous 80's drum machines. Volume, pan and decay time are individually adjustable and pitches are tunable over a wide range for crazy effects. The full fledged sequencer let you arrange complete songs and can record the notes and controller movements of your performance. The unique gesture oriented user interface makes it ideal for live editing of notes and automations. With the Apple iPad Camera Connection Kit you can use a CoreMIDI compatible MIDI Keyboard to control iSyn Poly. iSyn Poly is developed by VirSyn with content from audioMIDI.com. Features: Three Independent Synthesizers One polyphonic synth with eight voices and two monophonic synths with: • Three oscillators with sawtooth, pulse, triangle and sine waves. Modulations routings: LFO->pitch, filter ADSR->cutoff, LFO->pulse width. • White/Pink noise generator. • Classic 24 dB/oct ladder-style lowpass filter with drive parameter. Modulations routings: LFO->Cutoff, Filter ADSR->Cutoff. • Amp section includes distortion with drive, asymmetry and crusher. • Control matrix allows real time control of five parameters using the X/Y touch pad, the modulation wheel and the tilt sensors of the iPad. • Arpeggiator for automated sequences. • 64 factory presets, unlimited user presets can be shared. Drum Machine • Eight simultaneous instruments arranged into eight user-selectable drum kits. • Editor page allows tuning, panning, level and decay time for individual instruments. Effects Section • iSyn Poly features one global effects unit with phaser, flanger, chorus and stereo/cross delay. Live • Play melodies live with onscreen keyboard/drum pads. Drag fingers for slides and vibrato. • Optionally use CoreMIDI compatible hardware keyboard. Full featured Sequencer • Four track sequencer with piano roll and automation editor. • Real time recording with quantize function and metronome. • Arrange your songs with variable length patterns. Move and copy/paste patterns. • Recording and playback of X/Y Pad movements, mod wheel, pitch bend and key velocity. • Full set of editing functions with unlimited undo. Global • Manage unlimited number of songs. • Render song or patterns to audio and midi files. • Audio pasteboard. • Audiobus 2 support (requires iOS 7 or newer). • Exchange songs and user presets with File Sharing in iTunes.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is rating: Mozaic Plugin Workshop at 5.0 against iSyn Poly's 4.3. Mozaic Plugin Workshop also leads on review sentiment (95% vs 64%) and ratings volume (81 vs 4). iSyn Poly's advantage is price ($0.99 vs $1.99) and iOS requirement (8.0 vs 12.4). On ads, in-app purchases and monetization model 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
iSyn Poly costs $0.99 and Mozaic Plugin Workshop $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mozaic Plugin Workshop holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Mozaic Plugin Workshop has 81 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 64% of iSyn Poly's written reviews are positive against 95% of Mozaic Plugin Workshop's.
iSyn Poly ships an update every 6 months, Mozaic Plugin Workshop every 3 months. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.
| Parameter | iSyn Poly | Mozaic Plugin Workshop |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.3 (4 ratings) | 5.0 (81 ratings) — better |
| Positive reviews | 64.0% of reviews | 94.6% of reviews — better |
| Number of ratings | 4 | 81 — better |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 12.4 |
| Further details — not scored | ||
| Size | 19 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | Bram Bos |
Customer experience
iSyn Poly
Mozaic Plugin Workshop
In-app purchases
iSyn Poly
No in-app purchases
Mozaic Plugin Workshop
No in-app purchases
Questions
Is iSyn Poly free?
Is Mozaic Plugin Workshop free?
Which has better reviews, iSyn Poly or Mozaic Plugin Workshop?
Do iSyn Poly or Mozaic Plugin Workshop have ads?
Which is updated more often, iSyn Poly or Mozaic Plugin Workshop?
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