Conclusion: The error correction services of Qichacha and Tianyancha are free.
Reason: The error correction services provided by these two websites are to ensure the accuracy and completeness of corporate information and improve the user experience.
Therefore, in order to attract more users to use their platforms, both Qichacha and Tianyancha provide error correction services for free.
Content extension: In addition to error correction services, Qichacha and Tianyancha also provide other free services, such as corporate credit ratings, industry analysis, patent inquiries, etc.
However, if you need more detailed and professional services, such as professional consulting, customized reports, etc., you will need to pay.
Therefore, when using these websites, you need to choose the appropriate service according to your needs.