1. Different institutions: The AYP project is an exchange project between the US government and the China government, and YFU is a non-governmental organization.

2. Different ways: AYP project, the two governments organize exchange programs for middle school students in the United States, YFU project is invited and sponsored by institutions, and YFU institutions provide a series of training and full-course counseling services for exchange students.

3. Different contents: middle school students in the AYP program go to school for one year or half a year; Public or private secondary schools study in accommodation or live in local families. YFU programs don't have to go to school, and they don't have to be middle school students, so they participate in more extensive exchanges.

4. Different time: AYP projects usually last for one year or half a year. YFU project is mainly an exchange project, and will return to China on time after the project.