In fact, it depends on how to choose the free version and the paid version. If you choose to use a free website, you should pay attention to the following risks.
The result of duplicate checking is not satisfactory.
Because it is a free website, the development in professional technology is definitely worse. For example, the coverage of the article is not very wide, so some data management in the paper has the problem of high repetition rate, but when we use the free website to check the duplicate, it will show that it is qualified, which will mislead students. If it is an important paper, it is recommended that enterprises do not choose to use the free duplicate checking website.
Information security risk
Although using free papers to check duplicates can save you money, you need to take some unknown risks when using these free websites. There are many free duplicate checking websites with information security problems, that is, when these websites are used for duplicate checking, personal information and papers may be leaked. So when choosing a free website, you must be careful not to use unfamiliar websites.
Could be a hidden virus.
There has always been a virus on the internet, including when students use it to check some papers for free, and there is also a risk that the society will spread the virus. Therefore, you can't download and learn some unknown duplicate checking software at will, especially some download links posted by strangers on students' social platforms. These questions are not very reliable.
Hidden charging program
There are also some free duplicate checking websites with many routines, which can be used for free on the surface, but there are some charges hidden behind them.
In short, when using inspection-free websites, it is best to find some websites that you are familiar with, or ask friends to recommend them, which can effectively avoid risks.