Best SJ alternatives: apps like SJ-SQUARE - Synthesizer

7+ similar apps compared and reviewed

3.8 avg rating

3 free apps

Updated October 2026

Kouki Yoshimoto

Whether you want more options like SJ or a completely different take on the same concept, our curated list of 7+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to SJ

MidiCanvas by Mitra Geeban

Create Music Generate Midi

Editor's Choice

🎵 Music

5.0(2 ratings)

FreeAds

Create music by dragging and dropping notes onto a staff. Compose with four instrument tracks and one percussion track, each with adjustable volume, instrument choice, and transposition. Save your compositions as MIDI files.

What I'm Hearing by John Holland

Strong Contender

🎵 Music

0.0(0 ratings)

$0.99

FW Radar by Vincenzo Risi

Firmware alerts for your gear

Worth Considering

🎵 Music

0.0(0 ratings)

Free

More apps like SJ

Reggaeton Rhythms - BeatLab

Dembow beats to practice

$1.99

$2.99 | 33% OFF

Learn to master the dembow beat and understand reggaeton music. This app offers interactive instrument control, adjustable BPM, and rhythmic variations for dancers, musicians, and producers.

Interactive instrument controlAdjustable BPM controlMultiple rhythmic variations

MBR-01. Expressive synth

Polyphonic expressive XY Synth

A wavetable synth you can see.

$8.99

This music creation tool transforms visuals into sound by rendering shaders and images into wavetables. It offers a powerful synthesis engine, extensive sound-shaping capabilities, and a full effects rack, all controllable through light and visual input.

Visual-to-audio wavetable synthesisUnison oscillator stack with sub-oscillatorZero-delay-feedback filter

PianoCreator by MaqAmir

Music with no boundaries