HowNet's personal check is not free. China HowNet is not open to individuals, but only provides duplicate checking services to universities, periodicals, research institutions and other enterprises. However, HowNet provides free duplicate checking service for graduate dissertations, and the number of free times has increased from 1.5 per capita to 3 per capita. The price of personal edition is set at 1.5 yuan/thousand words with reference to the common charging method by words in the market, which is not higher than the price of similar products in the mainstream market.

Different duplicate checking systems have different algorithms and data, so the duplicate checking results are also different. Different universities and periodical institutions have different requirements for duplicate checking system. In addition to HowNet, there are VIP, papertime, Wanfang and so on. It is recommended that you choose a suitable duplicate checking system for testing.

In addition, although some websites provide personal duplicate checking service of HowNet, these websites are not official websites of HowNet, and there may be certain risks, such as paper leakage. Therefore, it is suggested that reliable detection systems should be carefully selected when using these websites for duplicate checking.