Qyooo is a powerful polyphonic software synthesizer available for both Microsoft Windows and Apple macOS platforms. Designed for high-performance and efficient CPU usage, it supports multiple plugin formats including VST2, VST3, CLAP, and AU. Its architecture is built in native C++ code, ensuring smooth operation and responsiveness during complex sound design tasks.

This synthesizer features three zero-delay feedback filters with a variety of modes and configurations, allowing for rich filter modulation through a unique Scene Morphing section. Sound generation is driven by three band-limited oscillators with ring modulation capabilities, complemented by a white noise generator. The synthesis engine includes four LFOs and envelopes, supporting up to 64 voices with portamento for expressive polyphony.

Qyooo also includes a chorus effect to add depth and character to sounds. It offers 25 additional presets developed by Krezie Sounds to jumpstart creativity. Users benefit from MIDI Learn functionality, enabling complete control of all parameters via MIDI CC, as well as support for dynamic micro-tuning through MTS-ESP by ODDSound. The plugin is compatible with both 32-bit and 64-bit systems on Windows and macOS.