Best S alternatives: apps like S-Modular

9+ similar apps compared and reviewed

4.2 avg rating
1 free apps
Updated November 2026

Whether you want more options like S or a completely different take on the same concept, our curated list of 9+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to S

KQ MiniSynth Legacy#1

KQ MiniSynth Legacy by Ryouta Kira

Modular Synthesizer
Editor's Choice
🎵 Music
4.8(24 ratings)
$11.99In-App Purchases
KQ MiniSynth Legacy screenshot 1
KQ MiniSynth Legacy screenshot 2
KQ MiniSynth Legacy screenshot 3
KQ MiniSynth Legacy screenshot 4

Create unique sounds with a powerful polyphonic modular synthesizer. Patch together various modules like oscillators, filters, and sequencers to design complex audio textures. Supports MIDI, Audiobus, and Ableton Link for seamless integration with other music production tools.

4.9😐(22 ratings)
$4.99
Crystal Synth XT screenshot 1

Create lush, evolving soundscapes with a powerful semi-modular synthesizer for mobile devices. Explore subtractive and FM synthesis, extensive modulation, and built-in effects. Share sounds with the desktop version and connect MIDI keyboards for a full hardware synth experience.

What We Love

  • 🎶 Fantastic sound quality
  • 💡 Innovative breed function
  • 🎛️ Deep sound design capabilities
  • 🎹 Versatile synth
  • ✨ Unique and creative sounds
  • 👍 User-friendly interface
  • 💰 Great value for price
  • 🔌 Good integration with other apps (Audiobus, IAA)
  • 🔄 Consistent updates and maintenance (historically)
  • 💻 Patch sharing with desktop version

Room to Improve

  • 🐛 Occasional crashes
  • ⚠️ Preset system issues (folders, access)
  • 🐌 Outdated interface
  • 🔌 Lacks AUv3 support (frequently requested)
  • 🔊 Crackling/popping sounds
  • 📉 Some features not working (e.g., breed fan, envelope points)
  • 🚫 No polyphony on iOS (historically)
  • 🖼️ Uninspiring app icon/UI aesthetic
Branches - Semi-modular synth#3

Branches - Semi-modular synth by Willow & Oak AB

Standalone & plugin
Worth Considering
🎵 Music
3.9(12 ratings)
$5.99
Branches - Semi-modular synth screenshot 1
Branches - Semi-modular synth screenshot 2
Branches - Semi-modular synth screenshot 3
Branches - Semi-modular synth screenshot 4

This semi-modular synthesizer offers a "west coast" style of sound design, inspired by classic synthesizers. It functions as a standalone app with MIDI input or as an AUv3 plugin within a DAW, allowing for complex sound creation and experimentation.

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4
RiffAlly Tuner
RiffAlly Tuner
RiffAlly Tuner
Calm chromatic guitar tuning
Free
🎵 Music
(0)
5
SinOscillators
SinOscillators
SinOscillators
Nine irregular sine waves
$3.99
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6
76477 Complex Sound Synth
76477 Complex Sound Synth
76477 Complex Sound Synth
Complex Sound Synthesizer
$2.99

Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.

Three oscillators with multiple wave typesModulation capabilities for oscillatorsAdjustable noise generator with filter
🎵 Music
(9)
paid
7
XII AudioVisual
XII AudioVisual
XII AudioVisual
Auto Composition
$9.99

This app generates 3D computer graphics and music in real-time based on the twelve-tone technique. It offers automatic composition with limited user interface, allowing MIDI note export to DAWs. The music is experimental and not intended for conventional listening.

Real-time 3D computer graphicsAudio-visual music generationTwelve-tone technique composition
🎵 Music
(2)
paid
8
Ample Juice
Ample Juice
Ample Juice
Guitar Amp, Cab, Mic & Tuner
$7.99
$14.99 | 47% OFF

This app simulates a guitar amplifier, cabinet, and microphone setup, allowing musicians to shape their tone with intuitive controls. It offers a range of sounds from clean to heavy distortion and includes a built-in tuner and preset saving.

Simulated amp, cabinet, and microphoneAdjustable gain, EQ, and mic positioningPulp and boost effects
🎵 Music
(2)
paid
9
LOOPBAR
LOOPBAR
LOOPBAR
Multitrack looper for guitar
$0.99

Record and layer multiple audio tracks in real time to build musical ideas. This tool allows for precise loop point setting and adjustment during playback, perfect for capturing inspiration on the go.

Create multiple independent audio tracksRecord via built-in microphoneSet individual loop points with drag & drop
🎵 Music
(1)
paid