We often hear about crowdsale when reading the introduction of a blockchain business idea. The crowdsale is the heart of an ICO project. It is when the company starts to sell its tokens in exchange for money, so they can raise funds for their idea and create a larger investment. A crowdsale is open to anyone who wishes to invest in the ICO. It is important to mention that the crowdsale is different from a presale. Sometimes people can mix up these terms, but they are different parts of an ICO launch.