PaperPass duplicate checking system is reliable, and many algorithms and databases are used in duplicate checking, but there may be some errors in the duplicate checking results of PaperPass. This is mainly due to the differences in algorithms and databases of different systems, as well as the influence of some special circumstances, such as citation, format, typesetting and so on.

In addition, the free version of PaperPass may be limited in the number of repeated papers and the number of words per day, with relatively few functions, such as not supporting online editing and charging for downloading reports.

Different papers have different detection algorithms and databases, and the detection results will be different. Therefore, when using any paper duplicate checking system, you must choose a regular and reliable duplicate checking website. Paperfree and papertime free duplicate checking systems can also detect the first draft and intermediate draft, which are widely welcomed by students.

PaperFree provides free paper detection for all users, and the online duplicate checking function realizes the modification of papers while checking duplicate papers, and where to check them; According to the actual modified sentences, there is no charge for the content that is not changed; Enjoy the wonderful experience brought by intelligent weight loss of paper.