Cascade

Reverb and diffusion with an experimental edge

macOS Windows $29
iOS $7.99
Cascade

Velvet Machine

Sonic texture generator / blur / non‑linear reverb

macOS Windows $29
iOS $7.99
Velvet Machine

Shoom

MPE-compatible full audio range triple-synth playground

iOS $6.99
Shoom

Xynthesizr

32-step matrix pattern sequencer/synthesizer

iOS $6.99
Xynthesizr