AP certificate VS IB exam certificate:
You will find that the first phenomenon is that IB students account for less than 20%, but IB expenses account for more than 60%. Why? Because the first difference between IB and AP is that IB is a complete set of high school diploma courses, while AP is similar to American competition courses or professional elective courses. The IB exam is like paying tuition in high school, and the AP exam is like taking the CET-4 certificate after class.
IB course is a separate high school course, which can be used as a diploma to prove your high school education and apply for American universities. (2) AP is not a separate high school curriculum. You need to attach your original domestic high school diploma (or cooperative high school diploma) to apply for the United States. Even if you are an IB student, you can teach yourself the CET-4 certificate and the math contest (AP) course, but if you are an AP student, you can't sign up for IB after self-study.
In addition, because IB itself is a high school diploma course, its advantage in transferring credits is not as great as AP. For example, some universities allow students to exchange AP scores for more than 4 points for several university credits, but they do not accept IB courses for credits. Generally speaking, half of universities are still allowed to change credits.