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Everything you need to know about the platform and how it works.
CodinzHub is a premium coding interview preparation platform designed to help developers crack online assessments and technical interviews at top tech companies.
Yes, our questions are curated from recent real-world online assessments and interviews from major tech companies, ensuring you practice with relevant material.
We provide detailed editorials, optimal approaches, and code solutions for many of our problems to help you learn and improve your problem-solving skills.
Many parts of CodinzHub are accessible for free. We also offer premium features for structured learning paths and advanced company-specific problem sets.
We update our question bank regularly as new interview experiences and online assessment patterns emerge from the community.
Coins are CodinzHub's in-app credits. You spend them to unlock premium content — a coding question costs the listed/configured coin cost and a resume review costs the configured coin amount. Interview experiences and project access follows its displayed price. Every new account starts with the configured coin amount, and you can see your balance and full coin history on your dashboard.
There are three main ways to top up your balance for free:
- Refer your friends — grab your personal invite link from your dashboard and earn the configured coin amount for every friend who signs up with it. They receive the configured coin amount as their welcome balance.
- Contribute content — share an OA question or interview experience on the contribute page. Once approved, interview experiences may receive:
- 50 Coins – Standard Interview Experience
- the configured coin amount – Detailed Interview Experience with complete OA process, round-by-round breakdown, questions asked, selection process & final result
- Answer assessment requests — browse open requests on the requests page and earn the configured coin amount each time you fulfil one for another member.
Open your dashboard and copy your unique referral link from the “Refer & Earn” card. When someone creates an account through that link, coins land in your wallet once their signup is verified, and your friend's opening balance is set by the same reward. That card shows the current amounts, which can depend on whether your friend joins from your college or a different one. There is no cap on how many friends you can invite. Already signed up without a link? A referral code can also be entered on the signup form.
Yes. Head to the requests page and raise a request for a specific company's OA or interview round. Raising a request costs the configured coin amount, which funds the reward for whoever fulfils it, and you get notified once another member answers it.
CodinzHub is currently open to college students, so accounts are created against a college email domain rather than a personal one. Sign up with your official college address — the one your institute issued you, such as user@iitbhu.ac.in — and the signup will go through. If your college uses a different domain and you still see the error, ping us at Discord Join our Discord and we will get your institute added.
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