Surge XT - Open-source subtractive-hybrid synthesizer formerly sold commercially as Vember Audio Surge.
Cantabile - Plugin host for live performance.
VHS Synth - The leading free & open-source iOS/macOS music & audio dev tools. https://t.co/Ik1FiorZWH proudly powers millions of iOS app installs
Blue Cat's PatchWork - Blue Cat's PatchWork is a universal plug-ins patchbay and multi FX that can host up to 64 VST, VST3, Audio Unit or built-in plug-ins into any Digital Audio Workstation (DAW) in a single instance, with both serial and parallel routing options.
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
VSTHost - Hostprogram for VST-Plugins with ASIO-Support