Open toe describes a shoe, especially a sandal, which is not closed at the front, allowing the toes to be seen. Some open toe styles, such as peep toe pumps, have an enclosed vamp with a small opening at the toe, which make them more suitable for formal wear during warmer weather.
About Platform:
Platform describes footwear with raised, thick soles of at least one and a half inches in height. Platform soles are often made of cork, plastic, rubber or wood and are generally worn for fashion or to add height.