The Universities and Colleges Admission Service (UCAS) is the British admission service for students applying to universities and colleges in the UK
US Common App
The US Common Application (informally known as the Common App) is an undergraduate college admission application that applicants may use to apply to colleges and universities in 47 states of the US and the District of Columbia, as well as in Austria, France, Germany, Italy, Switzerland, and United Kingdom. There is a Common Application for first-year admission and a Common Application for transfer admission. Both versions allow the application to be filled out once online and submitted to all schools with the same information going to each. Once the application is submitted to a college online, it cannot be changed for that college; the student must contact the college directly if they wish to correct an error or provide more information. The Common Application also allows the student to submit and track other components of their application such as supplements, payments, and school forms.