Best Buttersynth Apps

4.0😐(63 ratings)

$19.99

This powerful synthesizer app offers a hybrid approach, combining wavetable, FM, and sample-based synthesis. Create unique sounds with a vast sonic range, advanced modulation, and a built-in effects rack. It caters to both experienced sound designers and beginners with extensive presets.

What We Love

✨ Deep sound design capabilities
🎛️ Versatile modulation matrix
🔊 Great sound quality
💡 Innovative wavetable generator
🌟 Serum-like experience
📱 Available on phones/iPads
🎹 Excellent for sound design
🚀 Powerful and capable synth
💯 Top-tier instrument
🎶 Amazing workflow and sound
💻 Desktop-class plugin on iOS
🎨 Beautiful and intuitive UI
🎚️ Wide range of filters
🎛️ Loads of modulation capabilities
💡 Unique random LFO feature
🎚️ Good array of effects
🎛️ Multiple oscillator types
🎚️ FM synthesis included
🎛️ Real 4-op FM synthesis
🎨 Straightforward interface presentation
🎚️ Great filters
🎶 Excellent sound
💡 Top-notch sound banks/patches
🎛️ Highly customizable
🎚️ Great for DnB
🎛️ Can sound pretty or nasty
🎚️ Granular controls
🎛️ Deep and great sounding
💡 Can recreate popular synths
🎚️ Powerful and versatile
🎛️ Good selection of presets
🎚️ Excellent standalone app
🎛️ Amazing wavetable synth
🎚️ Good for soundscapes
🎛️ Highly recommended

Room to Improve

📱 Fiddly on small screens
🐛 Crashes frequently
🐛 Disappears in Cubasis
🐛 Spikes CPU usage
🐛 Crashes on patch change
🐛 No audio on render/freeze
🐛 Keyboard doesn't load on iPhone
🐛 Audio Unit Extension quit error
🐛 Unusable in GarageBand
🐛 Preset changes on play
🐛 Random crashes in Logic Pro
🐛 Patches hang
🐛 Limited wavetable selection
🐛 Sample module buzz
🐛 Simple LFOs
🐛 Square wave LFO not square
🐛 Step sequencer has glide
🐛 Can't save custom presets
🐛 No undo in wavetable editor
🐛 AUv3 loading issues
🐛 Unstable as AUv3
🐛 Patches sound different in AUv3
🐛 Crashes on iPhone with sequencer
🐛 No keyboard in iPhone standalone
🐛 Audio degradation in GarageBand
🐛 Preset browser closes on selection
🐛 Envelope curve is odd
🐛 Release envelope ends abruptly
🐛 Matrix fiddly with min/max knobs
🐛 Missing filter key follow button
🐛 Missing sustain pedal support
🐛 Missing tunings
🐛 Missing master detune
🐛 Missing parameter lock
🐛 Black borders on screen
🐛 Automation not working
🐛 No contact option for developer

AudioKit Synth One Synthesizer by AudioKit Pro

Feature-packed Pro Synthesizer

Strong Contender

AudioKit Synth One J6 + AUv3

4.9😊(27K ratings)

Free

AudioKit Synth One Synthesizer screenshot 1

AudioKit Synth One Synthesizer screenshot 2

AudioKit Synth One Synthesizer screenshot 3

AudioKit Synth One Synthesizer screenshot 4

AudioKit Synth One Synthesizer screenshot 5

This is a free, open-source professional synthesizer app for iOS devices. It offers over 300 presets, MIDI support, a sequencer, and vintage-inspired filters. Learn music production basics and create your own sounds.

What We Love

😎 Easy to use
🔥 Clean patches
👍 Awesome synth
🎸 Works great with GarageBand
🤩 Absolutely stunning
💥 Incredible dynamic articulation
🎹 Powerful and intuitive
🎶 Vast set of features
🔊 Amazing quality
🤘 Spanking awesome
🤘 Love the concept
🎹 Immediate access to controls
🎨 Versatile sound creation
🎚️ Smooth and responsive
⭐ Packed with presets
🎧 Excellent sound quality
🎛️ Great interface and patches
🎛️ Powerful soft synth
🎛️ Stunning sounds
🎛️ Awesome all-around

Room to Improve

🤔 No AU support yet
🤔 Crashes with Audiobus 3
🤔 Poor palette of sounds
🤔 Mod wheel issues
🤔 Occasional crashes
🤔 High battery consumption
🤔 Keyboard issues on iPhone

Granula Synth by Stanislav Duplinskiy

Sound Generation

Worth Considering

🔧 Utilities

1.8(4 ratings)

FreeIn-App Purchases

Explore new soundscapes by manipulating granular audio. This app offers a library of presets, custom sound import, and extensive parameter adjustments for unique music creation. Save your settings and share your sonic experiments.

More Buttersynth apps to explore

Pro Analog Synthesizer Fun!

Over 400 presetsStep sequencer and arpeggiatorsReal-time FX control

This free synthesizer app offers pro-quality analog sounds for creating pads, basses, keys, and leads. It features over 400 presets, a step sequencer, arpeggiators, and real-time FX control, making it suitable for beginners and pros alike. Enhanced accessibility features are included for visually impaired musicians.

(2.5K)

Voice Synth Modular

Live Auto Pitch Vocoder

Live voice processingVocodersAuto Pitch

Transform your voice into a musical instrument with a suite of advanced audio effects. Create robotic voices, harmonies, and unique soundscapes using only your voice. Save and share your creations, or integrate them into your digital audio workstation.

(3.1K)

SynthMaster One for iPhone

Powerful wavetable synth

Wavetable synthesis300 factory presetsAUv3 support

This powerful wavetable synthesizer app offers an intuitive workflow for creating new sounds. It features a rich library of wavetables, inspiring factory presets, and real-time modulation feedback for sound design.

(335)

Filterstep

Creative Motion Filter

Real-time rhythmic movementIntricate filter effect settingsFilter randomization

This app offers a creative motion filter plugin for real-time rhythmic movement. Explore intricate patterns and sonic possibilities with various filter effect settings and randomization. Shape any sound into a unique groove.

Open Source Granular Synth

Open source granular synthesizerSound design toolDetailed blog for updates

An open-source application for creating unique sounds through granular synthesis. Explore detailed information and updates on the developer's blog.

Wider by Infected Mushroom

(13)

free

Stereo Expander

Expands stereo image of mono signalsCompletely mono-compatibleMaintains phase coherence

This audio plugin expands the stereo width of mono signals to create a more immersive sound. It uses a unique algorithm to ensure phase coherence, preventing muddiness and maintaining signal integrity when summed to mono. Achieve up to 200% stereo width for an exaggerated, wide effect.

Quick switch of music styles

(85)

free

Consoler：Tuning Master

6-band graphic equalizerOne-tap style presetsCustom playlist creation

This app offers a 6-band equalizer to adjust audio frequencies in real-time, allowing you to enhance bass, vocals, or fine-tune any song. It includes one-tap style presets and custom playlist creation for a personalized listening experience.

Create beautiful music immediately with intuitive controls and unique pitch visualization. Compose melodies, tone, and chord patterns effortlessly, even without prior knowledge. Easily make ringtones, record, and email your creations, or play along to other music apps.

Intuitive music compositionUnique pitch visualizationCreate ringtones

(74)

memory warper and propagator

Magma : sound as matter

$3.99

$6.99 | 43% OFF

This audio processing tool manipulates incoming sound by blending it with its past, creating unique textures from drones to ethereal timbres. It acts as a micro-looper, granular engine, sustainer, and sound warmer, allowing for extensive sound sculpting.

Time-based audio blendingMicro-looper and granular engineSustainer and sound warmer

Expresive Touch Music-Making

Expressive touch gesture music creationSeven unique sound schemesGenerative composition engine

Create expressive music with intuitive touch gestures. Explore various sound schemes and generative composition tools to craft unique musical pieces. Supports MIDI and Audiobus for advanced integration.

Creative Panning Modulator

Evolving panning patternsRhythmic stereo movementReal-time audio modulation

This app generates complex, evolving panning patterns and adds rhythmic stereo movement to audio tracks in real-time. Its intuitive interface and powerful pattern editor allow for precise stereo editing, bringing dynamic life to static sounds. It can be used as a standalone application or as an AUv3 plugin within iOS DAWs.

Experience unique sound synthesis through intuitive multi-touch gestures. This app offers a button-free performance environment where your touch movements generate all sounds. Discover diverse sonic landscapes and control instruments with taps, pulls, and stretches.

Multi-touch performance environmentGesture-based sound generationNo buttons, keys, or sliders

(42)

MusicTGA

AI songwriting assistant

AI music composition by touchRoyalty-free music libraryMIDI export for DAWs

This music production app offers three creative modes for composing and finding music. Generate melodies with AI by touching the screen, discover royalty-free tracks, or utilize MIDI files for cover song productions. Export your creations for professional refinement.

Extreme Time Stretching

Extreme time stretching algorithmAUv3 plugin supportRadical sound transformation

Transform audio into extended ambient soundscapes with this powerful time-stretching tool. Ideal for sound design and ambient music creation, it can stretch short clips into hours of audio. Capture sounds or load files, then manipulate parameters for radical sonic transformations.

This app offers a unique reverberation effect that simulates a room changing shape, creating evolving soundscapes. It provides a wide range of sonic possibilities, from smooth resonances to granular disintegration, with extensive control over its parameters.

Continually modulated reverb algorithmPitch resonatorRibbon resonance player

(86)

Jam Synth

by Derek Mesecar

Monophonic guitar synthesizerPitch and amplitude trackingMultiple oscillator wave shapes

Transform your guitar into a synthesizer with this app. It accurately tracks pitch and amplitude to control digital oscillators, offering unique synth leads and effects. Go beyond MIDI with expressive, organic sounds and advanced modulation options.

(29)

Klankwelle

A modular synthesizer

Modular synthesizer creationUp to 8 synths simultaneouslyBuilt-in keyboard and step sequencer

This app allows users to create and manipulate complex synthesizer sounds using a modular interface. Build up to eight synthesizers simultaneously, controlling them via an on-screen keyboard, step sequencer, or external MIDI devices. Fine-tune audio with built-in effects and an equalizer.