Synthesizer Sim 4+

The ultimate mobile synthesizer studio. Craft unique sounds, play microtonal music, and record your creations with professional-grade tools.

Meet the ultimate mobile synthesizer and keyboard - a gateway to boundless musical expression. Crafted for both professionals and dreamers, this app transforms your device into a powerful sound design and performance studio.

Create Your Signature Sound
Dive into a world of limitless possibilities with an advanced synthesis engine. Shape tones, layer textures, and unleash creativity with rich modulation, deep filters, and studio-grade effects. Design lush pads, piercing leads, earth-shaking basses, and everything in between — every sound you imagine, you can create.

Play with Pure Expression
Feel every nuance with a responsive, touch-sensitive keyboard built for emotion and precision.

Pitch Bend Wheel: Infuse your melodies with smooth glides and dramatic bends.

Microtonal Support: Explore exotic scales and alternate tunings beyond the limits of traditional keys.

Instant Transpose: Shift your entire keyboard to any key - effortlessly.

A Complete Music Creation Toolkit
Your full studio, reimagined for mobile:

MIDI & Sample Player: Bring your own sounds or play your favorite MIDI compositions.

Rhythm & Metronome: Stay perfectly in sync and craft intricate grooves with precision.

Record & Share: Capture performances in pristine audio or record your screen to showcase your creative process.

Rich Instrument Library: From grand pianos and vintage organs to silky strings and analog synths — inspiration is built in.

Learning Tools: Strengthen your musicality with integrated solfege and theory exercises.

Your Sound, Your World
Whether you’re producing on the go, learning the art of synthesis, or performing live, this app is your canvas.
Every note you play, every sound you design - it’s all part of your sonic journey.

Download now and redefine what’s possible in mobile music creation.