Yes. If you don’t own BIAS FX 2 Desktop, OMNYSS comes with a free copy of BIAS FX 2 LE (Desktop).
If you already own a BIAS FX 2 Desktop license (Standard, Pro or Elite), you can buy OMNYSS as an expansion pack and still keep your license.
For mobile users, OMNYSS can be purchases without needing an existing license of BIAS FX 2 Mobile.