Page screenshots: Big Interview, interviewing.io, Aced and Grow with Google official pages
I have worked in IT for about twenty years, and I have sat on both sides of the table. When friends ask me which AI tool will get them ready for an interview, my answer starts with a question: do you need to practice what you say, or how you say it? A tool that writes a good answer will not help if you freeze when you speak it out loud. This guide follows the searches people run next on Google (free tools, answer generators, video practice, Google's own tool) and tells you what is worth your time. The main options are Yoodli, Big Interview, interviewing.io, Aced, DevInterview.AI and Gemini Live.
Quick answer- Free and simple: Yoodli has a free Starter plan with 5 lifetime sessions (Yoodli pricing page, read October 25, 2026), and Gemini Live is the practice option Google now points to.
- Structured course plus video feedback: Big Interview, from $39 for a 30-day plan up to a $299 lifetime plan (its pricing page, read October 25, 2026).
- Software engineers: interviewing.io offers a free AI Interviewer for coding and system design, and Aced offers peer practice with AI feedback.
- Google Interview Warmup: its old page now redirects to a general interview tips article, so do not rely on older lists that still recommend it.
Jump to: Best tool | Free | Google Interview Warmup | Answer generators | Video practice | By role | Privacy | Final pick | FAQ
Disclosure: As an Amazon Associate I earn from qualifying purchases. Some links on this page are affiliate links, at no extra cost to you. The AI tools themselves are not affiliate links.
Best AI Interview Preparation Tool
There is no single best tool, because interview prep has three jobs: learning what good answers look like, practicing them out loud, and getting honest feedback. Different tools do different jobs. Big Interview describes itself as a platform with three parts: lessons on how to interview, an Interview Simulator with realistic questions, and AI feedback on delivery and clarity from your video answers. Yoodli is a roleplay and speech coach that lists interview prep, public speaking and pitch practice for individuals.
Image: Big Interview (official page screenshot)
Big Interview's pricing page lists three plans for job seekers: Interview BootCamp at $39 for a 30-day subscription, Interview Accelerator at $99 for three months, and Interview Pro at $299 for lifetime access. It also states a 30-day money-back guarantee. A third-party roundup from CoPilot Interview (published October 11, 2026) notes that Big Interview has no free plan, which matches the pricing page I read.
Image: Big Interview (official page screenshot)
Image: Big Interview pricing (official page screenshot)
My take (20 years in IT): Pick the plan by deadline, not by price. If your interview is next week, a 30-day plan is enough because you will not use more. If you are changing careers over several months, a lifetime plan can make sense, but only after you have used the cheaper one and liked the feedback.
Who should pick Big Interview Structured prepYou want lessons, a question bank and video practice in one place, and you are fine paying. Skip it if you only want a few free practice runs. Its pricing page shows no free plan.
AI Interview Preparation Tools That Are Free
Several tools let you start for free, but the limits matter. Yoodli's pricing page says individuals can get started for free, and that the Starter plan includes 5 lifetime sessions. Any practice session longer than 30 seconds counts as one session, so five goes quickly. Pro costs $8 a month billed annually and allows up to 10 roleplays a week, while Advanced costs $20 a month billed annually and adds unlimited roleplays.
Image: Yoodli (official page screenshot)
Image: Yoodli pricing (official page screenshot)
Image: Yoodli pricing (official page screenshot)
For engineers, interviewing.io says its AI Interviewer is free, simulates a FAANG-style interview, and can do both coding and system design. It also says you can work over 200 problems from Beyond Cracking the Coding Interview for free. Its FAQ says human mock interviews with engineers start at $179, with a full refund if you are unhappy. Aced (formerly Exponent) says you can start practicing for free with peers and AI feedback and has introduced an AI Interviewer, though I could not confirm the exact free limits from its page.
Image: interviewing.io (official page screenshot)
Image: interviewing.io (official page screenshot)
Image: Aced (official page screenshot)
Image: Aced (official page screenshot)
Who should use the free options Trying before payingAnyone with a few days to spare. Skip them as your only plan if the interview is for a role you really want. Five lifetime sessions is enough to find your weak spots, not to fix them.
Google Interview Warmup: What Happened and What to Use Now
Many older lists still recommend Google Interview Warmup. I checked on October 25, 2026: the old page address, grow.google/certificates/interview-warmup/, now returns a permanent redirect to Google's general How to Prepare for an Interview article. That article does not mention Interview Warmup by name. Third-party sources say the tool was retired in April 2026 (DevInterview.AI, August 2026) and describe the redirect (OphyAI, checked September 29, 2026). Google has not, in anything I read, explained why, so I will not guess.
Image: Grow with Google (official page screenshot)
What does Google point to now? The same article says the Gemini mobile app offers Gemini Live, which you can use to simulate a real-time, conversational interview with instant, structured feedback on your responses. It also lists other mock interview options: a friend, a mentor or a career counselor, or recording yourself and reviewing the answers. It advises a 30 to 60 second professional pitch and the STAR method for behavioral questions.
Image: Grow with Google (official page screenshot)
Image: Grow with Google (official page screenshot)
My take (20 years in IT): A retired tool is a good freshness test for any listicle. If a guide still calls Interview Warmup a current option, it has not been checked in months, and its prices are probably old too. I would treat that guide the same way I treat unpatched software.
AI Interview Answers Generators and Live Answer Tools
Two searches here mean different things. An answer generator helps you draft and polish answers before the interview, which is normal preparation. A live answer tool listens to a real interview and shows suggested answers during it. Final Round AI's own site describes its Interview CoPilot this way: it listens to your live interview and delivers real-time answers in a private window. It lists a free plan for prep, a Pro plan from $25 a month for live sessions, and says there is no free trial for live sessions (its pricing page, read October 25, 2026). The site also says its windows are hidden from screen sharing and recording.
I would not use a live tool in a real interview unless the employer allows it. Many employers have rules about outside help in interviews, and being caught can cost you the job. That is my view as an IT professional, not a legal ruling, so read the employer's instructions. The safer use of any AI is before the call: write your examples, practice them aloud, and let the tool ask follow-up questions.
AI Video Interview Practice Free
Video practice matters because delivery is part of the answer. Big Interview includes AI feedback on delivery and clarity from video, but its plans are paid. Yoodli counts practice sessions and also accepts feedback on uploaded recordings on paid plans, according to its pricing page. For free video practice, the simplest option is the one Google suggests: record yourself and review the answers.
Image: Big Interview (official page screenshot)
If your interview will be on video, test your setup too. Camera height, light and a clean microphone make a bigger difference than most candidates expect. I cover that in my guides to USB microphones for Zoom calls and webcams for video calls.
What Role or Industry Are You Interviewing For?
Google's related question is a good way to choose. Match the tool to the interview.
- Software or data roles: interviewing.io for coding and system design, Aced for peer practice, or DevInterview.AI, which lists unlimited 30 to 45 minute live voice interviews for coding, system design and behavioral questions at $19.99 a month, $49.99 per quarter or $99.99 a year (its pricing page, read October 25, 2026).
- General business, sales or office roles: Big Interview or Yoodli for speaking and structure.
- Any role, on a budget: Gemini Live or recording yourself, plus a friend who asks follow-up questions.
Image: DevInterview.AI (official page screenshot)
Image: DevInterview.AI (official page screenshot)
Image: interviewing.io (official page screenshot)
Image: Aced (official page screenshot)
Note that DevInterview.AI sells one of the tools it compares in its own roundup, and the CoPilot Interview roundup I cite also sells a tool. Both say so. I used them for dates and pricing context only, and I used the vendors' own pages for plan details.
Privacy and Data Before You Upload Your Voice or Resume
Interview practice tools handle your voice, your video and often your resume. Yoodli's pricing page says that on Advanced and organization plans your roleplay data is excluded from AI training by default, while on individual Starter and Pro plans session data may be used to improve the platform. It also says Yoodli is SOC 2 Type 2 certified and GDPR compliant. Those are the vendor's claims. For the other tools, I did not read a data policy, so check each privacy page before you upload anything.
My take (20 years in IT): Do not put anything in a practice tool that you would not put in an email to a stranger. Use a version of your resume without your home address and ID numbers, and avoid details of confidential work from your current employer.
Quick Comparison
| Tool | Best for | Price noted | Link |
|---|
| Yoodli | Speech and roleplay coaching | Free Starter: 5 lifetime sessions. Pro $8 a month billed annually | Visit site |
| Big Interview | Lessons, simulator, video feedback | $39 for 30 days, $99 for 3 months, $299 lifetime | Visit site |
| interviewing.io | Coding and system design | AI Interviewer free. Human mocks from $179 | Visit site |
| Aced | Peer practice with AI feedback | Start free (limits not confirmed) | Visit site |
| DevInterview.AI | Live voice mock interviews for engineers | $19.99 monthly or $99.99 yearly | Visit site |
| Gemini Live | General conversational practice | Google points to it in its interview article | Visit site |
Prices are from each vendor's page, read October 25, 2026. Check the current plan before you pay.
A One-Week Practice Plan
- Day 1: write a 30 to 60 second pitch about yourself, as Google's article suggests, and say it aloud.
- Day 2: write three stories using the STAR method (situation, task, action, result) from your own work.
- Day 3 and 4: run a free session in one tool and note what the feedback says.
- Day 5: record yourself on video and review it.
- Day 6: ask a friend or mentor to ask follow-up questions.
- Day 7: rest, then review your notes.
Final Recommendation
This guide is general information, not career, employment or legal advice.
Frequently Asked Questions
Is Google Interview Warmup still available?
No. Its old page redirects to a general Grow with Google interview tips article, which points to Gemini Live for AI practice. Third-party sources say it was retired in April 2026.
What is the best free AI interview preparation tool?
Yoodli offers a free Starter plan with 5 lifetime sessions, interviewing.io offers a free AI Interviewer for coding and system design, and Google points to Gemini Live. Check each tool for current limits.
Can I use an AI answer tool during a real interview?
Check the employer's rules first. Many employers restrict outside help, so I would use AI for preparation only unless the employer clearly allows it.
How many practice sessions do I need?
There is no number from the sources I read. Start with a few sessions, review the feedback, and repeat the answers that need work.
Is it safe to upload my resume to an AI interview tool?
Read the tool's privacy page first. Yoodli says data handling differs by plan, so check each vendor and remove personal details you do not need to share.
Sources
- Yoodli, pricing (read October 25, 2026)
- Big Interview, pricing (read October 25, 2026)
- interviewing.io, home page and FAQ (read October 25, 2026)
- Aced, practice page (read October 25, 2026)
- DevInterview.AI, pricing (read October 25, 2026)
- Final Round AI, pricing and product page (read October 25, 2026)
- Grow with Google, How to Prepare for an Interview (read October 25, 2026)
- DevInterview.AI, best AI mock interview tools (August 5, 2026), a vendor comparison
- OphyAI, best AI interview tools (checked September 29, 2026), a vendor guide
- CoPilot Interview, best free mock interview websites (October 11, 2026), a vendor guide
Page screenshots were taken from the vendors' official pages on October 25, 2026, are framed here, and belong to their owners.
Last updated: October 25, 2026. Sources read October 25, 2026.
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