The Obamacare exchange website isn’t the only one riddled with glitches to the point it is deeply frustrating hopeful applicants.

A cascade of glitches in a major online college application program has frustrated prospective students across the country and prompted several universities to push back their fall deadlines, exposing vulnerabilities in the nation’s college admissions system.

More than 515 colleges and universities, including the entire Ivy League and public flagships such as the University of Virginia, use the Common Application to help choose their incoming classes. The program, which handles millions of applications annually, was retooled this year in an attempt to make an inherently stressful teenage ritual a little easier. But the fourth online version of the Common App, which went live Aug. 1, has compounded the angst of many college-bound students.

Software troubles and other technical difficulties have left students staring at frozen screens or led them to pay multiple fees for a single application. Others reported being shut out of their accounts entirely.

Arjun Iyer, 17, of Herndon, a senior at Thomas Jefferson High School for Science and Technology in Fairfax County, said he tried to log in about 10 times on the eve of a deadline to apply to the University of North Carolina at Chapel Hill. At one point, the computer told him that his user name and password didn’t exist.

“Of course I was freaking out a little bit,” he said.

Some counselors said they were having trouble uploading recommendations and other required documents.