TL;DR
For AI-powered practice: MORT (flexible, good for behavioral + technical) or Interview Warmup (free, Google-focused).For human feedback: Pramp (free peer practice) or Interviewing.io (paid, real interviewers).For video analysis: Big Interview or Yoodli. The best tool depends on your budget, role, and whether you want AI convenience or human feedback.
Why Mock Interviews Matter
Here's the thing about interview prep: you can memorize every answer in your head, but the first time you say it out loud to another person (or an AI), it comes out completely different.
Mock interviews aren't about perfecting scripted answers. They're about getting comfortable with the act of interviewing-thinking on your feet, structuring your responses in real-time, and not freezing when you get a curveball question.
The research backs this up: candidates who do 5+ mock interviews significantly outperform those who only do mental preparation. The difference is practice under pressure.
Quick Comparison
| Tool | Type | Best For | Price |
|---|---|---|---|
| MORT | AI Interview Practice | Behavioral, technical, PM interviews | Free tier available |
| Interview Warmup | AI Practice | Google-style questions, entry-level | Free |
| Pramp | Peer Practice | Coding interviews, free human feedback | Free |
| Interviewing.io | Professional Interviewers | FAANG prep, serious candidates | $100-225/session |
| Big Interview | Video Practice | Recording yourself, self-review | $79-299/year |
| Yoodli | AI Speech Coach | Presentation skills, filler words | Free tier available |
AI-Powered Mock Interview Tools
AI tools have gotten remarkably good at simulating interviews. They're available 24/7, never judge you, and let you practice as many times as you want. The trade-off: they can't fully replicate human intuition or give you the "vibe check" a real interviewer would.
MORTOur Pick
Full disclosure: this is our tool. But we built it because we were frustrated with what existed.
Google Interview Warmup
Google built this free tool primarily for their career certificate programs, but anyone can use it.
Yoodli
Less of an interview simulator, more of a speech coach. Analyzes how you speak, not what you say.
Human-Powered Mock Interviews
Nothing fully replaces practicing with a real person. These services connect you with humans-either peers or professional interviewers.
Pramp
Peer-to-peer practice. You interview someone, they interview you. Both learn.
Interviewing.ioPremium
Practice with engineers who've worked at top companies. This is the premium option.
Video Practice Platforms
Big Interview
Record yourself answering questions, then review. Old-school but effective.
How to Choose the Right Tool
The "best" tool depends on where you are in your prep:
Just Starting Out?
Start with Google Interview Warmup (free) or MORT's free tierto get comfortable speaking answers out loud. The goal at this stage is just to start practicing.
Building Consistency?
Use an AI tool for volume. You need reps. Do 5-10 practice sessions to build muscle memory for common question types.
Preparing for a Specific Company?
Supplement AI practice with human feedback. If it's a high-stakes interview (FAANG, dream company), invest in a paid session on Interviewing.io or find a friend in the industry.
Struggling with Delivery?
Add Yoodli or Big Interview to work on how you speak, not just what you say.
Our Honest Take
We built MORT's interview practice because we think AI has gotten good enough to handle the "practice reps" part of interview prep. You shouldn't need to pay $200 or coordinate schedules just to practice answering "Tell me about yourself" for the twentieth time.
That said, for your most important interviews, human feedback still matters. The ideal approach is:
- AI tools for volume and building baseline confidence
- Human practice (friend, peer, or paid) for final-round prep
- Self-review (video) to catch delivery issues you can't see
The candidates who do best aren't the ones who found the "perfect" tool. They're the ones who practiced enough that interviewing started to feel natural.
Try MORT's Interview Practice
Get unlimited AI mock interviews with adaptive follow-ups and specific feedback. Free to start-no credit card required.