Best KG alternatives: apps like KG-SQUARE Pro - Synthesizer

VAPolyMT

Bi-timbral Synthesizer

$14.99

This powerful synthesizer app offers bi-timbral polyphony with analog-style sequencers and assignable macro controls. It functions as a standalone application or an AudioUnit Extension, supporting MIDI, Ableton Link, and audio export. Project files are savable via iCloud Drive for cross-platform access.

springVerb

Stereo Spring Reverb FX | AUv3

$4.99

This app offers a wide range of vintage and modern spring reverb effects for music production. It features 14 distinct spring modes and extensive controls for deep sound customization, including EQ and automation. Presets can be saved and shared across platforms.

JenDie - Analog Synth

Classic late-'70s analog synth

$4.99

This app faithfully emulates a classic 1970s Italian monophonic analog synthesizer for iPhone and iPad. It offers authentic vintage sound with modern touch controls, allowing for expressive leads, basses, and evolving textures. Use it standalone or as an AUv3 plugin in compatible hosts.