For CS students preparing for campus placements in India
Practice the interviewout loud.Then fix the gaps it finds.
Unbrain interviews you on your own resume, scores your answers, and turns what you missed into a study plan with free resources.
One free chat interview with feedback. No card needed.
The next question depends on what you said to the last one.
Technical round
Interviewer
Your project runs on PostgreSQL. Which columns did you index, and why?
Illustrative transcript
- Rounds to choose from
0
Rounds to choose from
- Ways to answer: chat or voice
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Ways to answer: chat or voice
- Free interview to start
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Free interview to start
- Subscriptions to cancel
0
Subscriptions to cancel
How it works
Four steps, one evening.
Nothing to install and nothing to schedule. You bring the resume, the interview happens in the browser, and the plan comes out the other end.
01
Upload your resume
We read your PDF or DOCX once to pull out your details, then discard the file. The interview runs on what we extracted.
02
Sit the interview
Pick a round: Technical, Behavioral or HR. Answer by typing or by speaking. The interviewer follows up on what you actually said.
03
Read your report
An overall score out of 10, a readiness grade, your strengths, your gaps, a score for each category, and the full transcript.
04
Follow your plan
The gaps become a roadmap. Each node links to open-source resources. Work through it, then interview again.
Before the first question
It reads your resume first.
Questions come from your projects, your stack and the round you picked, not from a generic list. Your answers decide what gets asked next.
- PDF or DOCX, read once
- Used only to write your questions
- The file is discarded after parsing
resume.pdf
reading
0 of 8 sections read
Question seeds
- React · TypeScript
- PostgreSQL · indexing
- 2 shipped projects
- B.Tech CSE, 3rd year
File read once, then discarded
Upload kept on a server
If you reply “okay”, it moves on.
If you ask to skip a question, it skips.
If you get stuck, it changes approach instead of repeating itself.
The interview
It follows up on what you actually said.
Answer below and watch the interviewer change course. This is a scripted preview — the real session runs eight questions and scores every one of them.
Technical round · your answer drives the next question
Interviewer
Your project runs on PostgreSQL. Which columns did you index, and why?
Choose your answer
- Thin answers get probed
- Skips are allowed
- Nonsense input does not break the session
Voice mode
Practise saying it out loud.
Voice mode speaks the questions and listens to your answers, so you rehearse the part that is hardest to rehearse alone: saying it clearly under pressure.
Voice round
Mic onInterviewer
T
- Speaks the question
- The interviewer reads it out, so you answer out loud.
- Listens back
- Your answer is transcribed, scored and followed up on.
- Copes with real speech
- Pauses, filler words and mid-sentence corrections are fine.
Free interviews are chat only. Voice uses credits.
Technical round
Almost ready
Score
0.0 / 10
Strengths
- Explains indexing choices with a reason, not a definition.
- Comfortable writing joins and reading a query plan.
- Steady pace, no filler words.
Gaps
- Indexing and query plans
- Process vs thread scheduling
- Explaining trade-offs in your own project
Full transcript included. The report is generated once and stays the same each time you open it.
What you get at the end
A report you can act on tonight.
- 01
Overall score
A score out of 10 and a readiness grade for the whole interview.
- 02
Category scores
A score for each category, so you know which subject to open next.
- 03
Strengths and gaps
Taken from what you said in that interview, not from the question list.
- 04
Full transcript
Every question and answer, in the order they were asked.
Scores are an AI evaluation against the concepts expected for each question. Use them as a guide to what to study.
Learning plan
Your gaps become a roadmap.
Every gap turns into a node, and nodes connect in the order that makes sense to learn them. Each node links to open-source resources. Two students get two different roadmaps.
Indexing and query plans
B-tree indexes, EXPLAIN, composite indexes
Needs work
Transactions and isolation
ACID, isolation levels, deadlocks
Needs work
Process vs thread scheduling
Context switches, scheduling policies
Learning
Caching strategies
TTL, invalidation, write-through vs write-back
Learning
Explaining project trade-offs
STAR structure applied to your own projects
Needs work
Hash maps in depth
Collisions, load factor, resizing
Done
Every learning plan is tailored to your goals and your gaps, and comes with the interview that produced it. Compass, the career advisor in the app, is free to use.
Sample roadmap. Your own plan is built from the interview you just sat.
Questions
Written by people who take interviews.
Every question is written and reviewed by placement trainers, then put into a round. New rounds are added over time.
- TechnicalAvailable
- BehavioralAvailable
- HRAvailable
- More roundsAdded over time
Questions are chosen live from your resume and your answers, so the follow-ups come from what you actually said.
Aptitude
Aptitude tests for quantitative, logical and verbal reasoning, modelled on common placement patterns.
Pricing
Pay for what you use.
No subscription. You buy credits once and spend them on interviews. Nothing quietly renews into a plan you forgot about.
Free
- One free chat interview with a full feedback report
- Compass career advisor, no limit
Free does not include voice interviews.
What things cost
| Chat interview | ₹54 |
| Voice interview | ₹108 |
Every interview includes the scored report and your learning plan.
Voice costs more because every answer is transcribed and spoken back.
Credit packs
One credit equals ₹1. Buy a pack, spend it on any interview.
What happens to your resume.
Your resume is read once to pull out your details. The original file is not kept — sessions run on what we extracted, which stays with your account.
Marks and academic details are optional. We ask for your explicit consent before using them, in line with India's DPDP Act.
You can read the privacy policy and terms at the links below. Privacy policy · Terms
Questions
Answers before
you sign up.
Is it really free?
You get one free chat interview with a complete feedback report. After that, you buy credits. Voice interviews always use credits.
Do you store my resume?
We do not keep the file. It is read once to pull out your details, and those extracted details stay in your account so the next session can pick up where the last one left off.
Is the interviewer a real person?
No. It is an AI. It is not a substitute for a real interview, but it lets you practise the answering part as many times as you want.
How accurate is the score?
It is an AI evaluation against the concepts expected for each question. Treat it as a guide to what to study, not a prediction of any company’s decision.
Can I use voice on my phone?
Yes, in a browser that allows microphone access. Use headphones if you can.
What if I get a question wrong?
That is the point. Wrong or thin answers become gaps in your report and nodes in your roadmap.
One evening is enough to find out
Your interview is coming. Practise before it does.
One free chat interview. No card needed.