ACT corresponds to IELTS

Yes. The ACT test is sponsored by the American College Testing Organization. Its full name is "American College Testing" and its Chinese name is "American College Entrance Examination". Like the SAT exam, the ACT is also known as the "American College Entrance Examination." An IELTS score of 5.5 is required to participate. IELTS generally refers to the International English Language Testing System. IELTS, the full name of International English Testing System (IELTS), is one of the famous international standardized English proficiency tests.