Yes. They are completely unrelated in terms of productivity. Test boosters aim to directly enhance and increase natural testosterone production, while creatine serves a different function and purpose - with the goal of increasing available ATP (energy) in the body. I take creatine all of the time, and I generally cycle on/off from various test boosters. iForce has several available for your perusal including: Testabolan V2, Reversitol V2, Intimidate SRT, and Tropinol XP.
I prefer capped creatine personally and I am currently using SNS MCC.