The price difference between HowNet and Wanfang Paper Detection System mainly lies in the difference of service and database resources. HowNet is one of the most authoritative academic databases in China, and its detection system services include periodical system, undergraduate system, master system, etc. The price ranges from tens to hundreds of yuan. In contrast, Wanfang detection system has relatively few services, mainly including undergraduate graduation thesis, degree thesis and periodical thesis, and the price is relatively low.

In addition, there are also differences in algorithm and technology between HowNet and Wanfang detection system. HowNet's detection algorithm is more advanced, which can detect the duplicate content in the paper more quickly and accurately, while Wanfang detection system's algorithm is relatively simple and the detection speed is faster, but there may be some errors.

In short, HowNet and Wanfang are authoritative academic misconduct detection systems, each with its own strengths. Which system to choose depends on the specific situation, such as the language of the paper, professional field, database collection, user recognition and so on.