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App Store Apps > Music > Marco Synth
Marco Synth icon

Marco Synth

1.0.4
Glenn Vassallo
5.00
4 reviews
$4.99

Marco Synth Screenshot 1 of 5
Marco Synth Screenshot 2 of 5
Marco Synth Screenshot 3 of 5
Marco Synth Screenshot 4 of 5
Marco Synth Screenshot 5 of 5
Screenshots by Glenn Vassallo, from the the App Store listing
View on the App Store

AppBrain's verdict

Rating on App Store
5.00
4 ratings
Last updated
August 20, 2026
Size
6.32 MB

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

Comments on Marco Synth for iOS

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Store listing

By Glenn Vassallo, from the App Store
Description by Glenn Vassallo Written by the developer, not by AppBrain. Click to read.
Marco is a powerful 4-oscillator synth built around dual hard sync, with independent shaping on every oscillator. Randomize to spark fresh ideas, then tweak to shape them - a fast, tactile workflow made for finding your own sounds, not just recalling presets.

Marco is a new kind of synthesizer built around three breakthrough ideas:
• Dual Hard Sync - two parallel hard-sync chains running side by side
• Four oscillators, each with its own signal shaping path
• Intelligent randomization and tweak system

The result is shimmering harmonics, screaming overtones, and evolving timbres no other iOS synth can give you.
Whether it's your first synth or your fortieth, Marco meets you where you are. Hit the dice for an instant new sound. Cycle through every valid Dual Hard Sync combination with one tap. Or dive deep into per-oscillator sound design when you're ready.

DUAL HARD SYNC
• Two parallel hard-sync chains - A, B, or free per oscillator
• One-tap cycling through every valid Dual Hard Sync combination
• 10 Signature presets built around Dual Hard Sync

FOUR INDEPENDENT OSCILLATORS
• Waveforms: sine, triangle, saw, ramp, pulse, noise
• Filters: LP 6/12/18/24, BP, HP, Notch, Formant
• Envelopes: VCA + Filter, linear or exponential, drone mode
• LFOs: filter, volume, wavefold, pitch - with phase, reset, fade and clock sync
• Glide: exponential, linear, log, S-curve, legato
• Master FX bus with drive, compressor, delay, reverb, stereo width and limiter
• Hard sync and wavefolding
• Link envelopes, filters, LFOs, glide or effects across oscillators when wanting traditional shaping
• Monophonic sounds usually only possible in large modular setups

INTELLIGENT RANDOMISATION
• Musical preset generator - usable sounds, not chaos
• Generate by style: Mild, Wild and Recipe
• Target by category: Bass, Lead, Pad, Keys, FX, Drone
• Tweak system for subtle, context-aware variations
• One-tap dice button for instant inspiration

EFFORTLESS WORKFLOW
• Consistent UI across all four oscillators
• Per-oscillator scopes with live visual feedback
• Live LFO indicators on every modulated parameter
• Expressive XY pad
• Built-in keyboard on iPad standalone

BUILT FOR REAL MUSIC
• 100+ presets, including 10 Signature sounds
• Preset import / export
• Master Preset import / export
• Deep MIDI: full Note + CC mapping (CC mapping AUv3 only)
• Dedicated MIDI for Random Generate, Tweak, Dual Hard Sync Cycle, Scope, Preset Browser, XY Pad (AUv3 only)
• Clock-synced LFOs lock to host tempo
• AUv3 plugin - works in AUM, Loopy Pro, Drambo, Logic Pro, GarageBand, Cubasis and more
• Built-in song player with public domain tracks (standalone only)

Safety and technology

Found in the app by AppBrain
Price
$4.99
App size
6.32 MB
Content rating
Everyone

Technologies used by Marco Synth

Releases

Updates seen on the App Store
Version
1.0.4
Launched
July 2026

No changelog data

Alternatives

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4.3
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Rankings

App Store top charts

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About the app and developer

About Marco Synth

Marco Synth is a music app developed by Glenn Vassallo.

User Ratings

Marco Synth is rated 5.00 out of 5 stars. The rating is based on 4 ratings.

App Information

Marco Synth costs $4.99. The app size is 6.32 MB. The latest version available is 1.0.4. The last update was on August 20, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2026.

Marco Synth is made and published by Glenn Vassallo. AppBrain is an independent app data site and isn't affiliated with Glenn Vassallo. The app name, icon, screenshots and description belong to Glenn Vassallo and are shown as published on the App Store.

Developer information for Glenn Vassallo

Glenn Vassallo

Address:

Frequently asked questions about Marco Synth

Is Marco Synth free?

No. Marco Synth costs $4.99 on the App Store.

Is Marco Synth still available?

Yes. Marco Synth is on the App Store, and the last update we saw was on August 20, 2026.

How large is Marco Synth?

Marco Synth is 6.32 MB.

Is Marco Synth suitable for children?

App Store rates the content of Marco Synth as suitable for everyone.

How do people rate Marco Synth?

Marco Synth scores 5.00 out of 5 stars, from 4 ratings on the App Store.

Who made Marco Synth?

Marco Synth was developed by Glenn Vassallo. It is listed in the music category on the App Store.

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