Quick Answer
To practise a mock interview in English with a person online, you have three kinds of option. General tutor marketplaces (Preply, italki, Verbling, Cambly) are cheap and flexible, but the quality depends on the tutor and few tutors can follow a technical answer. English schools (Lingoda, Engoo, Talaera) are more structured but teach general business English. Specialist interview English coaching is the third: at Mockly English, practising UK data engineers run coding, system design and behavioural rounds in English and correct you line by line, at $50 a session after a free 30-minute trial. Expert marketplaces (IGotAnOffer, MentorCruise, PrepFully) give company insight but do not correct your English.
What makes Mockly English different
Mockly English is built for one job: getting non-native engineers and data professionals through tech interviews, and through meetings, in English. Your coach is a practising UK data engineer who also teaches English. They run the real round (coding, system design, SQL and data, behavioural, HR), then correct your English line by line and have you say it again. The first 30 minutes are free with no card; after that it is $50 a session, with no subscription.
⚡ Quick Stats
Three Kinds of Online English Tutor
Tutor marketplaces. Thousands of independent tutors set their own prices and schedules. You can find a tutor for almost any time zone and budget. Platforms vet tutors as teachers, not as engineers, so a tutor can fix your grammar but usually cannot tell you whether your system design answer makes sense.
English schools. A curriculum, levels and trained teachers. Good for steady progress; the interview material is general (common HR questions), not tech rounds.
Interview English coaching for tech. The coach plays the interviewer for the round you will actually sit, then corrects the English of your answers. This is what Mockly English does. The trade-off: two coaches, so fewer time slots than a marketplace.
The Options Compared
| Option | Type | Price (as checked) | Can follow a technical answer? | Read more |
|---|---|---|---|---|
| Mockly English | Interview English coaching for tech | $50 a 60-min session; packs cost less; free 30-min trial | Yes: coaches are practising data engineers | Pricing |
| Preply | Tutor marketplace | Tutors set their own prices | Depends on the tutor | Mockly vs Preply |
| italki | Tutor marketplace | Tutors set their own prices; pay per lesson | Depends on the tutor | Mockly vs italki |
| Verbling | Tutor marketplace | English from $7 an hour on the homepage; elsewhere lessons from $21 | Depends on the tutor | Mockly vs Verbling |
| Cambly | On-demand conversation with tutors | Subscription plans; check Cambly for current prices | Rarely | Mockly vs Cambly |
| Engoo | English school, 25-min 1:1 lessons | Monthly plans of 8–40 lessons | No | Mockly vs Engoo |
| Lingoda | English school, 60-min live classes | Plans by number of classes; 7-day free trial | No | Mockly vs Lingoda |
| Talaera | Business English training | $50 trial lesson; 3- or 6-month 1:1 programmes | Has an English for engineers course | Mockly vs Talaera |
| MentorCruise | Mentor marketplace | Interview Preparation session from $149 | Yes, but English is not the focus | Mockly vs MentorCruise |
| IGotAnOffer | Expert coach marketplace | About $50 a credit; 2–5 credits an hour | Yes; English coaching not offered | Mockly vs IGotAnOffer |
Facts come from each provider's own site, checked between 24 October and 10 November 2026, or from our individual comparisons linked in the table. Prices change often.
How to Brief a General Tutor for a Mock Interview
A general tutor can still be useful for the HR and behavioural parts of a loop, if you give them what they need. Send this before the lesson:
- The job post, and the round you want to practise (for example, “30-minute behavioural screen”).
- Five questions to ask you, such as tell me about yourself, a conflict, a failure, why this company, your biggest achievement.
- One rule: “Stop me when a phrase sounds unnatural or changes my meaning, give me a better version, and let me say the answer again.”
- Ask them to keep a list of your repeated mistakes and send it after the lesson.
For the technical rounds (coding, system design, SQL), a general tutor usually cannot judge the content. Practise the English of those rounds with Mockly's free system design and LeetCode Mini Apps, or with a coach who knows the material.
Free Mini App
Prepare your STAR stories before any lesson
Turn a work story into a clear STAR answer in natural English, so lesson time goes on speaking it. Free, no account.
Try the Mini AppQuestions to Ask Before You Book
- Have you interviewed, or been interviewed, for a tech role in English? It changes the feedback you get.
- Will you play the interviewer, with follow-up questions? Conversation practice is not a mock interview.
- How do you give feedback? Look for line-level corrections and a second attempt, not only a summary at the end.
- What happens if I cancel? Marketplaces and schools have different rules. Mockly keeps your credit if you cancel more than 24 hours before.
Mockly prices (as of November 2026)
- Mockly: a free 30-minute trial with a coach on Google Meet. No card and no subscription.
- Mockly: live 60-minute 1:1 sessions are pay-as-you-go. One session is $50; packs of 5 ($237.50), 10 ($450) or 20 ($850) cost less per session. Credits last 12 months and work with either coach.
- Mockly: Premium is the self-study course at $9.99/month, or $59.99/year, with a 7-day free trial. It does not include a coaching session and you do not need it to book one.
Verdict
Tutor marketplaces are the cheapest way to speak with a person, and a well-briefed tutor helps with HR and behavioural rounds. For technical rounds in English, choose a coach who can follow the content: that is the gap Mockly English's engineer-coaches fill.
Talk to an engineer-coach first
Book a free 30-minute Google Meet with Sophie or Tom. No card, no subscription. You practise a short interview-style prompt in English and leave with a plan for what to work on next.
Book a Free Trial →