The most apparent difference between a sofa and a couch is their design, style, and intended purpose. Sofas are associated with a formal appearance, and larger size and are suitable both for informal and formal occasions while emphasizing comfort and flexibility. Unlike a sofa that is bigger, formal, and often used in living rooms, couches are usually small, and casual and are connected to relaxation in informal spaces such as family rooms or den. The couches may have a lower price value compared to the sofas taking into consideration the size and complexity of design, while the couches might be budget-friendly alternatives.