Myosin and Kinesin are both present in animal cells, and they function mostly as protein motors, meaning both function by transporting molecules around the cells. This shows that Myosin and Kinesin have certain similarities. For instance, they also partake in the formation of the cytoskeleton.
However, there are still some differences between the two. Kinesin is responsible for the active transport of intracellular molecules and even organelles, usually along the microtubules. Myosin is a fibrous protein that's involved in the formation of contractile filaments present in the cells.
However, myosin functions by transporting molecules through the actin microfilaments. Another difference between myosin and kinesin is that kinesin usually plays an active role in the formation of the spindle apparatus, whereas myosin plays more roles, especially during cell division, muscular contraction, and cell motility. Invariably, you can consider their different molecular tracks as their main difference.