UCAT is a university entrance exam that is taken in New Zealand and Australia. UCAT is the acronym for the University Clinical Aptitude Test and is administered by the UCAT ANZ Consortium of universities in Australia and New Zealand.
The ISAT is known as the “International Students Admissions Test” developed by the Australian Council for Educational Research (ACER). It is an equivalent examination to the New Zealand University Entrance Scholarship Test (UCAT) except that it was developed specifically for international schools in Australia and New Zealand.
The two exams are very different from each other. The main difference between them is that ISAT can be taken at any time during schooling whereas UCAT can only be taken once a year at the Year 12 level.