Marco Synth vs DroneSynth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Marco Synth
This powerful synthesizer app offers a unique dual hard sync engine with four independent oscillators. Explore a vast sonic palette with intelligent randomization and a tactile workflow designed for sound discovery. It's suitable for both beginners and experienced musicians.
- Dual hard sync engine
- Four independent oscillators
- Intelligent randomization
- Extensive waveform and filter options
- Master FX bus
- AUv3 plugin support
- Built-in keyboard
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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)
DroneSynth
This app transforms your device into an analog-style drone synthesizer for creating ambient textures and evolving soundscapes. It offers hands-on control over oscillators, filters, and built-in effects without complex menus.
- Three independent oscillators with adjustable parameters
- Stereo-capable Moog Ladder filter
- Tempo-syncable delay and lush reverb effects
- Drone/sustain mode for hands-free operation
- On-screen keyboard with adjustable range
- Save and recall unlimited presets
- AU support for DAWs
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As both a musician and a software engineer, I've always found drones incredibly useful for my musical creativity, supporting my practice with singing, flute, didgeridoo, and other instruments like synthesiser and guitar. That passion for music and technology led me to bring DroneSynth to iOS, built from the ground up for the Apple ecosystem. Including AU support for supported DAWs DroneSynth turns your iPhone and iPad or Mac into a hands-on, analog-style drone synthesiser built for ambient textures, evolving pads, and hypnotic soundscapes — no menus to dig through, knobs you can hear. It now includes AU Support on all platforms. Layer three independent oscillators — sine, triangle, square, saw, and pink noise — each with its own volume, octave, semitone, and fine-tune. Shape the blend with a full ADSR envelope and two independent LFOs modulating filter cutoff and pitch, each with sine, triangle, or random shapes and drift. STEREO-CAPABLE MOOG LADDER FILTER Sculpt your tone with a classic Moog Ladder filter, featuring live cutoff and resonance. Upgrade to true stereo filtering — two independently detuned filters panned hard left and right — for a wider, richer, more three-dimensional drone. BUILT-IN EFFECTS • Tempo-syncable delay with tap-tempo and ping-pong stereo bouncing • Lush reverb across four distinct spaces — Room, Hall, Plate, and Cathedral — each with its own size, pre-delay, and decay character PERFORMANCE-READY • Drone/sustain mode for endless, hands-free evolving tones • On-screen keyboard with adjustable octave and range • Save and recall unlimited presets, so your favourite patches are always one tap away • Adaptive layout — a focused portrait view and a full landscape control surface with a persistent sidebar, so every parameter stays reachable Whether you're scoring a film, building a meditation soundscape, or want a synth that rewards knob-twisting over menu-diving, DroneSynth gives you real-time control over every stage of the signal path. Stereo Filters is available as an optional one-time in-app purchase.
Screenshots
Verdict
The clearest difference is price: DroneSynth at Free against Marco Synth's $4.99. DroneSynth also leads on update cadence (every 2 days vs weekly). Marco Synth's advantage is in-app purchases (none vs 2). On rating, review sentiment, ratings volume and ads 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
DroneSynth is free to download; Marco Synth costs $4.99 up front. DroneSynth sells 2 one-off in-app purchases. Marco Synth asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Marco Synth against 5.0 for DroneSynth. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Marco Synth ships an update weekly, DroneSynth every 2 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.
| Parameter | Marco Synth | DroneSynth |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 2 |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Glenn Vassallo | frederick bertram |
Customer experience
Marco Synth
DroneSynth
In-app purchases
Marco Synth
No in-app purchases
DroneSynth
- Motion Controller$0.99
- Stereo Filters$0.99









