interviewing.io vs Mockich
interviewing.io is the option to choose when you want a mock interview with an experienced engineer from a large tech company, and it charges for that from $179 a session. Mockich is an AI interviewer that you can use any time, free to start, across software, data science, ML and quant developer rounds. A sensible plan for many candidates is several Mockich rounds first, then one or two human mocks close to the real interview.
What interviewing.io is, as of November 2026
interviewing.io runs anonymous mock interviews with senior, staff and principal engineers and engineering managers from large tech companies, in coding, system design, machine learning, front-end, engineering management and behavioral formats. Sessions use audio and a shared editor, with no video, and end with detailed feedback. It also sells multi-session coaching.
Its FAQ says interviews start at $179, with the price depending on the subject and on whether you want an interviewer from a specific company, and that it refunds unhappy customers. It also offers a free AI Interviewer for coding and system design.
Side by side
| interviewing.io | Mockich | |
|---|---|---|
| Who interviews you | A senior, staff or principal engineer or manager; or a free AI interviewer | An AI interviewer, not a person |
| Format | Anonymous audio session in a shared editor, no video | A live spoken interview in the browser with Vera, an AI interviewer, on a real clock |
| Round types | Coding, system design, ML, front-end, engineering management, behavioral | Coding, fundamentals, system design and behavioral for every role, probability for quant, and a full loop with a recruiter screen and a hiring manager conversation |
| Roles | Mainly software engineering, including ML and management | Software Engineering, Data Science, Machine Learning and Quant Developer (C++), at Regular and Lead level |
| Feedback | Detailed feedback from the interviewer after each session | A written report after every round: each skill scored against the bar for your level, with quotes of what you said and when |
| Availability | Book a session with an interviewer | Any time, no booking |
| Price | From $179 per human interview; AI Interviewer free | Free to start |
Where interviewing.io is stronger
- Human interviewers with real hiring experience at large companies, which an AI cannot replace.
- The option to practise with an interviewer from a specific company.
- Front-end and engineering management mocks, which Mockich does not run.
- A long-running blog, and a hand in writing the sequel to a well-known coding interview book, by its own account.
Where Mockich is different
- Spoken rounds across a whole loop, from coding to behavioral, with a report that quotes what you said (its AI Interviewer is also free, for coding and system design).
- Data science and quant developer (C++) tracks, including SQL, experiment design and probability rounds.
- Behavioral rounds built from your resume and the job when you add them, with a report on pace, pauses and filler words.
Which one to choose
Choose interviewing.io if
- Your interview is close and you want the judgment of someone who has run real interviews.
- You want to practise with an interviewer from the company you are applying to.
Choose Mockich if
- You need repetitions before spending on a human mock.
- You are preparing for data science or quant developer interviews, or for behavioral rounds with feedback on delivery.
Use Mockich rounds to fix the obvious problems cheaply, so a paid human session goes to the questions only an experienced interviewer can answer.
Questions
Is interviewing.io anonymous?
Its pages say sessions have audio but no video and that your interviewer does not see your details unless you share them.
Does interviewing.io have an AI interviewer too?
Yes. Its home page and FAQ describe a free AI Interviewer for coding and system design.
Can Mockich tell me whether a company would hire me?
No. A Mockich score shows how one practice went against the bar for your level; it does not predict a hiring decision.
See how a Mockich round runs
Read an example report to see the feedback before you sign up, or start a round for free.
Practice pages
Other comparisons
Sources
We read only interviewing.io’s own public pages, on the dates shown, and did not buy a plan or test its quality. Prices and features change; check the linked pages before you decide.
- [1] interviewing.io home page, checked 3 November 2026
- [2] interviewing.io FAQ, checked 3 November 2026
Product and company names are trademarks of their owners and are used here only to identify their services. Mockich is not affiliated with, endorsed by or sponsored by any of them.