VIP's paper duplicate checking system is quite reliable, and the duplicate checking results are also very accurate. Although most schools are using HowNet to check students' papers, some schools still require students to use VIP to check papers. And in general, there will be a chance to check the duplicate for free. If VIP cooperates with the school, it will give the school a chance to check the duplicate for free. Usually, students will have the opportunity to check copies of papers for free. Timely and free duplicate checking opportunity papers fail to pass duplicate checking, and paid duplicate checking is also very cheap.

Supplement: duplicate checking method of VIP paper duplicate checking system: VIP paper duplicate checking system can check any paper that needs duplicate checking. Generally, the paper will be layered first, and fingerprints will be established according to the levels of chapters, paragraphs and sentences, and then the contents of these parts will be compared with the database of the duplicate checking system. This hierarchical multi-level fingerprint structure can not only meet the rapid detection of long documents, but also meet the high requirements of the system for precision and recall because the minimum fingerprint granularity is sentences. Although VIP is not used by many people, it is also a very good paper duplicate checking system.