ButterSynth

ButterSynth

By Arto Vaarala

ButterSynth is a hybrid 6-oscillator synthesizer that combines wavetable, FM, and sample-based engines into a single AUV3 and standalone platform. It offers a robust sound design environment featuring a deep modulation matrix and an internal FX rack, alongside a library of hundreds of presets for immediate use.

Overview · Full Intel report in progress

The App DNA

What makes this app unique?

For Music producers and sound designers ranging from beginners seeking ready-to-use presets to advanced users requiring complex synthesis and modulation capabilities.

What does it look like?

Key features

Hybrid Synthesis Enginesstandard

Users can mix and match any combination of six synthesis engines, including wavetable, FM, and sample-based sources.

Advanced Modulation and FXstandard

Includes a powerful modulation matrix and a fully-featured internal FX rack for extensive sound shaping.

Dual-Wavetable Enginestandard

Features nine phase modes, wave folding, and deep unison controls for complex sonic textures.

Preset Librarystandard

Provides hundreds of factory presets to facilitate immediate music production for less experienced users.

How much does it cost?

paid

Velocity

Dormant developmentShow more...

4 versions in history. Development pace: zombie.

See all version history

Who built it?

Arto Vaarala

1 app tracked · Music

Explore the full publisher profile

User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
4.10 · 62

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for ButterSynth

How's the Music market?

The rivals identified

AudioKit Synth One Synthesizer

By AudioKit Pro

Both apps target iOS musicians and sound designers with professional synthesis engines, creating direct competition for users seeking high-quality sound design on mobile platforms.

  • AudioKit Synth One provides a free, open-source architecture with no paywalls or advertisements.
  • ButterSynth offers a paid 6-oscillator hybrid engine combining wavetable, FM, and sample-based synthesis.
ButterSynth vs AudioKit Synth One Synthesizer
Show 2 more

Unlock the head-to-head verdict: where this rival wins, and where it loses.

Access the full report for free

The Analyst's Read

Key takeaways for ButterSynth

Where is it heading?

Bottom line

ButterSynth is a versatile, high-performance hybrid synthesizer designed to bridge the gap between complex sound design and accessible music production.

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by ButterSynth, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “ButterSynth Intelligence Report.” Updated Apr 29, 2026. https://marlvel.ai/apps/com-kirnu-buttersynth

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