What's the difference between copywriting & content writing in freelancing?

[Btaliat]

Among the skills that are mostly rushed in freelancing are content writing and copywriting. In fact, many a time, most people always mixed the two together. There are clear differences between the two. For instance, when you are into copywriting, you are into ads. So you write ads copy for different companies. When you are into content writing, you are writing articles and contents to appear on the Internet. What other differences do you know?