Ionic bonds are referred to two elements/molecules that form when one is classified as metal and another is classified as non-metal. Covalent bonds are two non-metal elements that bind together. They differ in several ways. Ionic bonds have a better force of attraction due to the metal element, whereas covalent bonds are formed using the Van de Waals force (which makes it weaker). Ionic bond also has higher melting and boiling point because of its force of attraction as compared to the covalent bond. Similarly, ionic bonds react to electricity where covalent does not.