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.

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What is JADI?

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.

Daily Structured Lessons
921+ Derived Words
SM-2 Spaced Repetition

Features

Daily Guided Lessons

Structured progression through vocabulary, grammar, and quizzes — building your skills step by step every day.

Pronunciation Practice

Speech-to-text scoring with native speaker reference audio so you sound natural from day one.

Gold List Method

14-day spaced distillation for natural vocabulary absorption — keep only what you haven't yet mastered.

Root Word Formations

Learn 921+ derived words from just 128 root words — unlock the patterns that make Indonesian click.

Indonesian Stories

Video content featuring native speakers — immerse yourself in real Indonesian language and culture.

Spaced Repetition

SM-2 algorithm schedules reviews at optimal intervals — maximizing retention with minimal effort.

How It Works

1

Get Started

Take a placement test to find your level, or jump right in as a beginner — either way, JADI meets you where you are.

2

Learn Daily

Complete structured lessons each day — vocabulary, grammar, quizzes, and speaking practice all in one flow.

3

Retain Forever

Review with the Gold List method and spaced repetition — so what you learn stays with you for the long run.

Meet the Team

Yohana Ekky Tan

Yohana Ekky Tan

Indonesian Language Teacher

Native Indonesian speaker and 5-star rated teacher on iTalki with 3,419 reviews. Ekky creates all lesson content, cultural insights, and pronunciation guides — bringing authentic Indonesian to every lesson.

Bijan

Bijan

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.