Free PaperPass usually just allows you to experience the testing process, test the paper in sections for free, and then average the test results of each section. There may be errors. On the one hand, it destroys the integrity of the paper, and if uninterrupted paragraphs are continuous, there may be a rate of omission and repetition. On the other hand, don't interrupt the paper, the meaning of the article will change greatly. When the detection system detects a paper, it is always paragraph by paragraph, which will lead to some paragraphs with incomplete meaning being wrongly detected, or the detection rate will be high or low, which is not conducive to future revision.
The charged PaperPass can provide more accurate and comprehensive detection results, because its database is more comprehensive, covering academic resources in various fields, and it adopts content-based algorithm, which can detect citations and plagiarism in texts.
Therefore, if users need to accurately detect the duplication of papers, it is recommended to use other authoritative duplicate checking platforms such as PaperPass or HowNet.