Journey to Authentic and Deep Indonesian
Master Indonesian with daily structured lessons, native pronunciation practice, and scientifically-backed spaced repetition — all crafted by a 5-star rated teacher.
Master Indonesian with daily structured lessons, native pronunciation practice, and scientifically-backed spaced repetition — all crafted by a 5-star rated teacher.
JADI is available now on iOS and Android. Start learning authentic Indonesian today with daily lessons crafted by a 5-star rated native teacher.
JADI is an Indonesian language learning app that combines expert-crafted lessons with smart technology. The name comes from the Indonesian word jadi, meaning "to become" — reflecting our mission to help you become a confident Indonesian speaker.
Free Indonesian podcast episodes with synchronized dual-language captions
Learn how to introduce yourself in Indonesian and pick up essential phrases for meeting new people.
Structured progression through vocabulary, grammar, and quizzes — building your skills step by step every day.
Speech-to-text scoring with native speaker reference audio so you sound natural from day one.
14-day spaced distillation for natural vocabulary absorption — keep only what you haven't yet mastered. Learn more
Learn 921+ derived words from just 128 root words — unlock the patterns that make Indonesian click.
Video content featuring native speakers — immerse yourself in real Indonesian language and culture.
SM-2 algorithm schedules reviews at optimal intervals — maximizing retention with minimal effort.
Take a placement test to find your level, or jump right in as a beginner — either way, JADI meets you where you are.
Complete structured lessons each day — vocabulary, grammar, quizzes, and speaking practice all in one flow.
Review with the Goldlist method and spaced repetition — so what you learn stays with you for the long run.
JADI stands for Journey to Authentic and Deep Indonesian. It's a language learning app that combines expert-crafted lessons from a 5-star rated native teacher that teaches how people actually speak in colloquial Indonesian.
JADI is designed for beginners through intermediate learners. We recognize there is a lack of resources for intermediate and advanced learners so we are developing content for learners who are committed to growing their fluency with Bahasa Indonesia.
Unlike Duolingo, every JADI lesson is crafted by a real native Indonesian teacher (5-star rated on iTalki with 3,400+ reviews). JADI focuses primarily on input, providing high quality examples to students so they can understand and process information rather than rely heavily on gamification and drills. JADI also teaches root word formations, uses the Goldlist method for long-term retention, and includes native speaker pronunciation practice.
All lessons are created by Yohana, a native Indonesian speaker and 5-star rated teacher on iTalki with over 3,400 reviews. She crafts every lesson, cultural insight, and pronunciation guide.
JADI is available now on the App Store and Google Play. Download the app and start learning Indonesian today.
Indonesian Language Teacher
Native Indonesian speaker and 5-star rated teacher on iTalki with 3,419 reviews. Yohana creates all lesson content, cultural insights, and pronunciation guides — bringing authentic Indonesian to every lesson.
Developer & Co-creator
Built the JADI app and platform from the ground up — combining language learning research with modern technology to create a tool that makes learning Indonesian effective and enjoyable.
5.0 stars from 3,419 reviews on iTalki
"Yohana is a fantastic teacher. She makes lessons engaging and practical. I've learned more Indonesian in a few months than years on my own."
Sarah Australia
"Best Indonesian teacher I've had. Yohana explains grammar clearly and always brings real-world examples."
Michael USA
"I love how patient and encouraging Yohana is. She adapts every lesson to exactly what I need."
Tomoko Japan
"Yohana's lessons are the highlight of my week. Her teaching style makes Indonesian feel natural and fun."
James UK
"After 50+ lessons with Yohana, my Indonesian has improved dramatically. She's incredibly knowledgeable."
Anna Germany
"Yohana doesn't just teach textbook Indonesian — she teaches how people actually speak. That's invaluable."
David Canada
"The best investment in my Indonesian learning journey. Yohana is organized, professional, and genuinely cares."
Lisa Netherlands
"Yohana makes complex grammar simple. I went from beginner to having real conversations in months."
Robert Singapore
"Yohana is a fantastic teacher. She makes lessons engaging and practical. I've learned more Indonesian in a few months than years on my own."
Sarah Australia
"Best Indonesian teacher I've had. Yohana explains grammar clearly and always brings real-world examples."
Michael USA
"I love how patient and encouraging Yohana is. She adapts every lesson to exactly what I need."
Tomoko Japan
"Yohana's lessons are the highlight of my week. Her teaching style makes Indonesian feel natural and fun."
James UK
"After 50+ lessons with Yohana, my Indonesian has improved dramatically. She's incredibly knowledgeable."
Anna Germany
"Yohana doesn't just teach textbook Indonesian — she teaches how people actually speak. That's invaluable."
David Canada
"The best investment in my Indonesian learning journey. Yohana is organized, professional, and genuinely cares."
Lisa Netherlands
"Yohana makes complex grammar simple. I went from beginner to having real conversations in months."
Robert Singapore