Xfer Records Serum – The king of wavetable synthesis. If you produce EDM, trap, or modern pop, Serum is mandatory. Its visual interface makes understanding modulation easy. AU: Yes.
Arturia Pigments – A direct competitor to Serum but with more engine types (analog, wavetable, granular, harmonic). Arturia’s AU plugins run flawlessly in Logic.
u-he Diva – For those who want the sound of a Moog, Roland, or CS-80 in their box. Diva is heavy on CPU but sounds indistinguishable from hardware. No VST needed; the AU version sings.
Stop searching for VSTs. Start searching for Audio Units. Your Logic Pro X session will thank you with lower latency, better stability, and infinitely better sound. Vst Plugins For Logic Pro X
References & Recommended Reading
Free and budget options (great starter list)
TDR Nova (Tokyo Dawn Records) — dynamic equalizer, extremely useful and free.
The VST Standard: Developed by Steinberg, Virtual Studio Technology (VST) is the industry-standard interface standard for integrating software audio synthesizers and effect plugins with audio editors and recording systems. It is used by DAWs such as Ableton Live, Cubase, and FL Studio.
The AU Standard: Apple Logic Pro X, however, utilizes the Audio Units (AU) architecture. This is Apple’s proprietary system-level architecture for audio drivers and plugins.