Free, AI and live 1:1 mock interview websites side by side - what each genuinely does well, and which one fits the interview you are preparing for. No platform wins every comparison, including this one.
| Platform | Format | Cost | What it covers | Best for |
|---|---|---|---|---|
| InstaMock | AI interviewer + live 1:1 with engineers | AI rounds free; 1:1 from ₹499 | DSA with code execution, LLD / machine coding, system design, behavioural | Software engineers and students, especially for Indian product company loops |
| interviewing.io | Anonymous live interviews with engineers | Paid per session | Coding and system design | US big tech loops, if anonymity matters to you |
| Pramp and other peer platforms | Live practice with another candidate | Free | Mostly DSA, some system design | Getting comfortable thinking aloud at no cost |
| Exponent | Courses, question bank, peer practice, coaching | Paid membership | Engineering, product management, data | Learning the material first, or non-engineering roles |
| Interview Kickstart | Instructor-led, multi-month programme | Large upfront fee | Full curriculum plus mock interviews | Candidates who want external structure and accountability |
| FreeMockInterview | AI practice with speech recognition | Free | Many job profiles beyond engineering | Spoken HR and behavioural practice across roles |
| Google Interview Warmup | Answer questions out loud; transcript and insights | Free | General and role-based questions, not technical rounds | Rehearsing spoken answers to common questions |
| ChatGPT / Gemini | General AI chat you prompt to interview you | Free or subscription | Anything you ask, without code execution or scoring | Quick behavioural rehearsal from a job description |
Based on what each platform publishes about itself. Features and prices change - check the platform before you pay.
Free AI rounds for DSA and HR practice, then one live mock before the drive.
A platform that runs those rounds - most US-oriented platforms do not.
A live 1:1 with an engineer who has taken hiring decisions.
Free AI rounds plus free peer practice. Use both; they are good at different things.
A broader platform such as Exponent or FreeMockInterview.
Start with a free mock interview, try the AI mock interview, or book a live mock interview online.
Both are AI mock interview tools and both have a free tier. The real question is breadth or depth: they cover 133+ job profiles, we cover software engineering rounds in detail.
Both give you real interview practice. They differ on anonymity, price per session, and whether the loop you are preparing for includes a machine coding round.
Pramp is free and peer-based. The trade-off is that your feedback quality depends entirely on who you were matched with that day.
Exponent is content-first and covers many role types. InstaMock is practice-first and goes deeper on software engineering loops.
Interview Kickstart is a structured, instructor-led programme with a price and time commitment to match. The question is whether you need the structure or just the practice.
It depends on the interview. For software engineering rounds with code that runs, LLD and system design, a dedicated engineering platform fits best; for spoken HR practice across many roles, a broad free tool is enough; for a verdict from someone who has hired, you need a live interviewer. No single platform is best at all three.
InstaMock's AI mock interviews, peer-to-peer platforms such as Pramp, FreeMockInterview and Google Interview Warmup are free. Live interviews with experienced engineers are paid on every platform, because someone is giving you an hour of their time.
For technical rounds, look for an AI interviewer that runs your code, follows a scoring rubric and asks follow-ups rather than praising every answer. General chatbots can rehearse behavioural questions but do not do those things. See the AI mock interview page for how the two compare.
Usually once or twice, close to the real interview. Free practice builds the habits; a paid live round tells you whether they are good enough. A single 1:1 here costs ₹499.