Get better at speaking in just three simple steps
Select from interview prep, pitch practice, toast delivery, TED-style talks, or confidence coaching.
Speak your answers, pitches, or speeches. KouLi listens and analyzes your delivery in real-time.
Receive instant feedback and have a conversation with your AI coach to refine your skills.
Practice speaking out loud with real-time feedback
AI coaching powered by 10,000+ real interviews and speeches
Get example-driven rewrites from world-class speakers
Voice-to-voice conversations with your AI coach
Track progress and build confidence over time
Mobile-first design for practice anywhere
Wisdom about public speaking from history's greatest communicators
"According to most studies, people's number one fear is public speaking. Number two is death. Death is number two. Does that sound right? That means that if you're at a funeral, the average person would rather be in the casket than giving the eulogy."
— Jerry Seinfeld
"It usually takes me more than three weeks to prepare a good impromptu speech."
— Mark Twain
"The human brain is a wonderful thing. It starts working the moment you are born and never stops until you stand up to speak in public."
— George Jessel
"Be yourself; everyone else is already taken. And if you can't, at least give a good speech pretending you are."
— Oscar Wilde
"If it is not right, do not say it. If it is not true, do not say it."
— Marcus Aurelius
"To be ignorant of what occurred before you were born is to remain always a child. To speak well is to live twice."
— Cicero
"To teach how to live without certainty, and yet without being paralyzed by hesitation, is perhaps the chief thing that philosophy can do. Public speaking is no different."
— Bertrand Russell
"Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen."
— Winston Churchill
"Speech is power: speech is to persuade, to convert, to compel."
— Ralph Waldo Emerson
"There are always three speeches, for every one you actually gave. The one you practiced, the one you gave, and the one you wish you gave."
— Dale Carnegie
"A good speech should be like a woman's skirt: long enough to cover the subject and short enough to create interest."
— Winston Churchill
"There are only two types of speakers in the world. 1. The nervous and 2. Liars."
— Mark Twain
"The right word may be effective, but no word was ever as effective as a rightly timed pause."
— Mark Twain
"Speak, so that I may see you."
— Socrates
"Words are, of course, the most powerful drug used by mankind."
— Rudyard Kipling
"The success of your presentation will be judged not by the knowledge you send but by what the listener receives."
— Lilly Walters
"All great speakers were bad speakers at first."
— Ralph Waldo Emerson
"If you can't explain it simply, you don't understand it well enough."
— Albert Einstein
"The most precious things in speech are the pauses."
— Ralph Richardson
Ready to level up? Choose a mode and start practicing with AI-powered coaching.
Nail Your Next Interview
Prepare for anything. Practice with 5,000+ real interview questions sourced from the world's toughest employers — from McKinsey and Google to Goldman Sachs. Get instant, personalized AI feedback on your structure, clarity, and confidence, so you can walk into every interview ready to impress.
Pitch Like a Pro
Perfect your startup or investor pitch with AI-driven feedback on storytelling, delivery, and persuasion. Trained on winning pitches from Shark Tank, Dragons' Den, and top business schools like Harvard and Stanford, KouLi helps you sharpen your message, inspire confidence, and win the room.
Deliver a Killer Toast
Whether it's a wedding, an anniversary, or a big celebration, craft a memorable, heartfelt speech with AI guidance. KouLi helps you strike the perfect balance between emotion and humour — so your words land, your audience laughs (and cries), and you get that standing ovation.
Speak with Impact
Master the art of the big stage. Trained on 5,000+ TED Talks and legendary speeches from Churchill, Mandela, Jobs, and more, KouLi helps you refine your tone, rhythm, and presence — building clarity, confidence, and charisma that command any audience.
Overcome Stage Fright
Tame your nerves before they tame you. The KouLi Confidence Coach blends psychology, voice science, and performance training to help you control your breathing, posture, and mindset. Think of it as your personal speaking therapist — calm, empowering, and always in your corner.
Podcast Like a Pro
Find your flow behind the mic. Built on thousands of hours of podcast transcripts from the world's most successful shows, KouLi gives you AI-powered feedback on pacing, tone, and conversational flow — helping you sound natural, confident, and completely in command of the conversation.
KouLi uses Retrieval-Augmented Generation (RAG) to compare your speech against the best
5,000+ actual interview questions from Google, McKinsey, Amazon, and top firms. Practice with the same questions asked in real interviews.
Your speeches are benchmarked against TED talks, Y Combinator pitches, and world-class presentations. Learn from the best.
Get specific rewrite suggestions based on real-world examples. Not generic feedback—actionable improvements from proven techniques.
Retrieval-Augmented Generation (RAG) means KouLi doesn't just give you generic AI feedback. Instead, it retrieves relevant examples from our massive database of expert speeches, interviews, and presentations.
Your practice is compared against real-world success stories, giving you concrete examples of what works and why. This is our competitive moat—no other platform offers this depth of contextual coaching.
See why KouLi is the most comprehensive AI speaking coach
| Feature | KouLiBest | Yoodli | Orai | Big Interview | VoiceCoach |
|---|---|---|---|---|---|
| RAG Technology | — | — | — | ||
| Knowledge Base | 10,000+ examples | TED-based | None | Video library | Voice exercises |
| Practice Modes | Interview, Pitch, Toast, TED | Basic interview | General | Interview only | Voice drills |
| Feedback Type | Example-driven rewrites | Metrics + examples | Metrics only | Video feedback | Voice analytics |
| AI Conversation | — | — | — | ||
| Mobile-First | Web & mobile | Desktop-first | |||
| B2B Ready | Exec training | — | — |
KouLi isn't just an app—it's your personal speaking coach powered by advanced AI. After each practice session, have a real conversation with KouLi to debrief, get personalized feedback, and understand exactly how to improve.
With access to a curated corpus of 10,000+ real interviews, speeches, and presentations, KouLi provides coaching that's grounded in proven techniques from world-class speakers—not generic AI feedback.

Join thousands who've transformed their speaking skills
KouLi helped me nail my PM interviews. The AI feedback was incredibly specific and actionable. I got offers from 3 FAANG companies!
Sarah Chen
Product Manager at Google
Practicing my pitch with KouLi was a game-changer. We raised our Series A after refining our story with the AI coach.
Marcus Rodriguez
Startup Founder
I was terrified of giving a wedding toast. KouLi helped me practice until I felt confident. The speech was a hit!
Emily Watson
Best Man Speech
Choose the plan that's right for you. No hidden fees.
For serious practitioners
3-day free trial included
Level up with real-time coaching and analytics.
For organizations and teams
Ideal for agencies, accelerators, or universities training multiple learners
Train entire teams with shared insights.
Here's how KouLi helps you speak with confidence, clarity, and control
KouLi listens as you speak, analyzes tone, pacing, clarity, and structure in real time, and gives instant feedback. After each session, you can chat directly with your AI coach — just like speaking with a real mentor — to refine delivery, storytelling, and confidence.
KouLi doesn't just measure your words — it coaches you. It listens, learns your style, and helps you grow with every session. It's like having a professional speech coach in your pocket, available anytime you need to prepare, present, or perform.
Professionals, students, founders, or anyone who wants to communicate with impact — from interviews to TED talks. Whether you're preparing for a job interview, pitching investors, delivering a wedding toast, or speaking at a conference, KouLi helps you shine.
Yes! KouLi is designed mobile-first. You can practice anywhere using our iOS or Android app, or through your mobile browser.
Yes. Your voice and transcripts are encrypted and never shared. You're always in control of your data. We take privacy seriously and comply with industry-standard security practices to protect your information.
Yes! You can start with our free plan that includes 5 practice sessions per month. Pro users get a 7-day free trial with unlimited access to all features.
Absolutely. You can cancel your subscription at any time with no questions asked. Your access will continue until the end of your billing period.