Kruu Jai

LEARN TO SPEAK THAI

The Thai teacher who never runs out of patience.

Lessons you can hear, a Tone Tool that draws your voice, listening practice with real Thai speakers, and Kruu Jai, an AI teacher you can talk to or type to.

1,572words to learn
2,051exercises
Freefirst lesson, no card
The Kruu Jai overview on a phone, with progress
A lesson on a phone with the Tone Tool drawing ผู้หญิง as it is spoken: the falling syllable marked right, the rising one flagged

THE LESSONS

See the tone. Hear the word. Say it right.

1,572 words, 2,051 exercises and 492 lines of real conversation, in thirty lessons across three levels. Every word shows the Thai, a romanisation you can switch off, its meaning and a line for each syllable’s tone. Tap it to hear it said.

  • Rate each word 1 to 5, and your progress bars colour in
  • Things to notice: how the Thai works, with an example to hear
  • Tick each note off once it is learnt
Lesson 2.1 on a phone: the Tone Tool drawing ชื่อจริง as it is spoken, falling then mid, both marked right
Things to notice in lesson 3.1: how ทำ works, and where the question word goes

KRUU JAI

Talk to your teacher. She will answer all your questions.

Live voice lessons with Kruu Jai, an AI teacher. She teaches the page in front of you and corrects your tones. Rather write? Ask about a spelling, a grammar point or an exercise.

  • Voice or chat, one switch at the bottom of every lesson
  • She knows the words you have learnt, and how to teach you the next ones
  • Paid with credits, only for the time you use
A live voice lesson: Kruu Jai teaching ฉัน and its rising tone, with the conversation as it happens
A question typed to Kruu Jai and her answer

THE TONE TOOL

See the shape of your tone

Thai has five tones, and the tone changes the meaning of the word. Switch on the Tone Tool, say the word, and it draws your pitch beside the shape the word needs.

  • Mid, low, falling, high and rising tones, visualised
  • Tuned to your own speaking voice during setup
  • Aim for the shape; it matters more than a perfect score
Lesson 3.2 on a phone: the Tone Tool drawing ภาษา as it is spoken, mid then rising

CONVERSATIONS AND EXERCISES

Textbook Thai, or real Thai? Learn both.

Every lesson has its conversations, and a switch between the grammatically correct Thai and the way Thai people actually speak. Then practise straight away.

  • Each line to hear, in Thai, romanisation and English
  • Meanings, word order and polite particles to practise
  • Stuck on one? Ask your tutor from the question
A lesson conversation
Exercises

LISTENING PRACTICE

Train your ear with real Thai voices

Five listening tests, recorded by Thai speakers: which tone, same or different, find the tone, mixed practice, and your weak spots. After each answer you see the word you heard, in Thai.

  • A scoreboard for this session and all time
  • Your gap: the tone you hear as another, and a test to fix it
  • No reading needed to take part
A listening question, answered, with the word in Thai
A round’s result and scoreboard

TONE DRILL AND PROGRESS

Hear it again and again, until your ear knows it

Pick a tone and hear it over and over, said by different Thai speakers. Then watch your progress stack up: every word you learn, your day streak, each lesson and your score for every tone.

  • The drill is unlimited on every plan
  • Bars coloured by how well you know each word
  • Tone scores for each of the five tones
The tone drill
Your progress

EVERYTHING YOU NEED

Every tool you need to speak Thai, in one place

Listening, speaking, tones, and the why behind them. The tests train your ear, the Tone Tool shows your voice, and Kruu Jai answers your questions properly, the way a patient teacher would. And it is simple to use: every lesson, test and tool is a tap away.

  • Listening practice with real Thai voices
  • Speaking practice with a teacher who corrects your tones
  • Every “why?” answered, by voice or in writing
  • The same account on your phone, in a browser and on a Mac
The menu: practice, your progress, and every level and lesson

KRUU JAI FOR MAC

Hear it, say it, see it, fix it. All on one screen.

On a Mac you see everything at once: the lesson, your teacher and the Tone Tool side by side. Say a word, watch your tone drawn as you speak, and hear Kruu Jai tell you exactly what to change, without switching screens. Your progress follows you to your phone, and the app keeps itself up to date.

For Macs with Apple silicon (M1 and later). The first time, right-click Kruu Jai in Applications and choose Open.
Kruu Jai for Mac mid-lesson: teaching ดี, with the Tone Tool drawing the spoken word and marking it mid

PLANS

Try for free. Go further with Kruu Jai.

Credits pay for time with Kruu Jai, by voice or in writing. Each paid plan adds them every month.

Free

฿0

A taste: the first lesson and the tone practice.

0creditsCredits come with a paid plan
  • LessonsLesson 1
  • Before you start guidesYes
  • Tone listening tests10 a day
  • Tone drill and Tone ToolYes
  • Progress and tone scoresYes
  • Voice lessons with Kruu JaiNot included
  • Chat with Kruu JaiNot included
  • Top up with credit packsNot included
Try for free

Lite

฿250/ month

Level 1 in full, with Kruu Jai.

15credits every month฿16.67 a credit
  • LessonsLevel 1 · 10 lessons
  • Before you start guidesYes
  • Tone listening testsUnlimited, any length
  • Tone drill and Tone ToolYes
  • Progress and tone scoresYes
  • Voice lessons with Kruu JaiWith your credits
  • Chat with Kruu JaiWith your credits
  • Top up with credit packsAny time
Choose Lite
FULLY LOADED

Full

฿1,000/ month

The whole course, and plenty of time with Kruu Jai.

90credits every month฿11.11 a credit · the best rate
  • LessonsAll 3 levels · 30 lessons
  • Before you start guidesYes
  • Tone listening testsUnlimited, any length
  • Tone drill and Tone ToolYes
  • Progress and tone scoresYes
  • Voice lessons with Kruu JaiWith your credits
  • Chat with Kruu JaiWith your credits
  • Top up with credit packsAny time
Choose Full

On Lite or Full, top up whenever you like: 60 credits for ฿720, 180 for ฿1,980, 600 for ฿6,000 or 1,500 for ฿13,500. Credits last 12 months, and only the time you use is charged.