Aren't the AP tests far more difficult than the SAT subject tests? That's what I remember at least for chemistry (maybe?) back when I took both exams.

To clarify, I meant to say “along with”. I took the APs and their SAT subject equivalents

Also, I wouldn’t necessarily agree that AP exams are more difficult than the SAT subject tests. School curriculum is not uniform. In fact, in my high school the material for certain SAT subjects tests was _only_ taught in AP classes.

Yes, AP is college level, and SAT is high school level.