Lmao nah. I would say IGCSE is by far harder - the grading alone proves that. For IGCSE we use PUMS - Percentage uniform mark scores. Virtually have the same meaning as UMS but at the top of the curve (80+) it is much less steep thus harder to achieve higher grades. I am saying this as a student who did CIE IGCSE this year. For example, take a subject such as Additional Maths. Often over the last 6 years the GB for A* has hovered around 156/160, which is pretty high considering you can only get 2.5% of all the available marks wrong. This runs through most other subjects, though it may not be as high. Plus, I have gone through some GCSE papers and they are not that difficult.