Alternatively, the name appears in the bathroom fixture industry with the Spanish company , which manufactures a " Rika Fixed " toilet as part of its " Maxi 247 " range. It is also mentioned in relation to specialized engine components that require precise, "unmoving tolerances". The term "fixed" here is technical, denoting a component lacking moving parts for higher stability and reliability in 24/7 operations.

In modern quantitative frameworks, "Rika" refers to specific developer modules or modeling engines tasked with executing swap fees, reward distributions, and parallel transaction simulations.