100% Free. Maximum Prep Your Real-Time
AI CAS Mentor 
Practice, perfect, and ace your CAS interview—with expert AI guidance 24x7.
Used by 10K+ people
35 min AI Practice
35 min AI Practice
35 min AI Practice
35 min AI Practice
35 min AI Practice
Ace your CAS interview effortlessly 
All Universities Supports all UK Universities
Experience CAS interview practice designed to match the tone, flow, and expectations of real university interviews.
Feedback AI Feedback & Analysis
Real-time, in-depth evaluations of your performance—powered by AI—and actionable recommendations to ace your interview with confidence
24/7 Practice Realistic CAS Prep
Real questions, real format, university, and course-specific personalised mock interviews that help you clear it on the first try
Top UK Universities on CASprep
Built on Real Questions. Backed by Real Results
Chukwubuikem
Nigeria
AI Graded Pass
Actual Result
Pass
It felt just like a real interview. The AI gave me instant feedback that helped me improve my eye contact and speaking tone
Li Wei
Singapore
AI Graded Pass
Actual Result
Pass
As an international student, I was nervous about my CAS interview. CASprep gave me the confidence to articulate my academic goals clearly.
Mohamed Hassan
Pakistan
AI Graded Pass
Actual Result
Pass
The realistic CAS interview scenarios helped me understand exactly what UK universities are looking for. I received my CAS without any issues!
Thulani Moyo
Zimbabwe
AI Graded Pass
Actual Result
Pass
I wasn’t sure what to expect from the CAS interview, but this tool gave me real-time practice that felt like the real thing. It picked up my hesitations and gave helpful suggestions. Highly recommend!
Nguyen Thi Lan
Vietnam
AI Graded Pass
Actual Result
Pass
This CAS prep platform saved me a lot of time and anxiety. Practicing with AI felt like talking to a real interviewer, and the tips after each session were very accurate.
James Otieno
Kenya
AI Graded Pass
Actual Result
Pass
Very easy to use! I liked how the system told me what to fix after each session. Great for serious prep
Sara Al-Mutair
Saudi Arabia
AI Graded Pass
Actual Result
Pass
I was nervous at first, but the practice questions and face tracking gave me a lot of confidence. I passed without any stress!
Samuel Boateng
Ghana
AI Graded Pass
Actual Result
Pass
This CAS prep tool is excellent. I knew what kind of questions to expect and how to respond calmly. It made a huge difference.
Why Students Love the AI CAS Mentor
- Learn how to explain gaps, finances, and course choices perfectly
- Avoid common CAS mistakes that lead to rejections
- No pressure, no judgment—practice in a safe space as many times as you need
- Updated regularly with real student interview trends and questions
FAQs
A Confirmation of Acceptance for Studies (CAS) is a unique reference
number
issued by a UK educational institution. It confirms that you have been offered
an unconditional place on a course and is required to apply for a Student visa.
You will receive your CAS after accepting your offer, meeting all
conditions
(academic and financial), and providing any required documents. Most
universities issue CAS letters around 3 months before your course start date.
Your CAS is valid for 6 months from the date it is issued, but you must use it to apply for your Student visa within 6 months of issue and no more than 6 months before your course starts.
Your CAS is valid for 6 months from the date it is issued, but you must use
it to apply for your Student visa within 6 months of issue and no more than
6 months before your course starts.
Only limited changes can be made. If there's a mistake (e.g. spelling of your
name, course title, or fee information), you must contact the university
immediately. Once a visa application is submitted using that CAS, it cannot
be changed.
If your visa is refused, you may request a new CAS, but you'll usually need
to provide a copy of the refusal notice and meet any additional requirements
set by the university. The institution reserves the right to issue a new CAS
based on the circumstances of the refusal.
Raghav Nayyar