What is Duolingo Indonesian?
Duolingo is the world’s most downloaded language app, and its Indonesian course has been available for English speakers since 2018. Like every Duolingo course it is a “tree” of units, each a handful of short exercises: translate this sentence, pick the matching word, type what you hear. You earn XP, keep a streak, and compete in weekly leagues.
The Indonesian course is one of Duolingo’s smaller ones. It was built mostly by volunteers and has received far less investment than Spanish, French or Japanese: there are no Stories, no podcast, and the unit count is a fraction of the big languages. Malay is not offered at all, and Duolingo has not announced one.
What Duolingo Indonesian does well
The habit loop is the best in the business. Five minutes a day, every day, is exactly how vocabulary sticks, and Duolingo is better than anything else at making you open the app. For a learner who has never studied a language, the gentle on-ramp is a real advantage.
It also teaches in sentences. Indonesian word order, the ber-/me- verb prefixes and question words appear in context from the first unit, so you absorb patterns without reading about them. And it is free: the Super subscription removes ads and hearts, but no content is locked behind it.
Where Duolingo Indonesian falls short
The course simply ends early. Most learners finish the Indonesian tree in a few months and are left around A2 with perhaps 1,000 words — and no route onward inside the app. Grammar is never explained, so the prefix system that makes Indonesian click (me-, ber-, -kan, -i, ke-an) stays a mystery unless you look elsewhere.
The biggest gap for our readers is Malay. Indonesian and Malay share most of their vocabulary but differ in hundreds of everyday words (“kantor” vs “pejabat”, “bisa” vs “boleh”, “mobil” vs “kereta”). Duolingo teaches only the Indonesian forms and never flags where Malaysia says something else, so a Duolingo graduate landing in Kuala Lumpur will be surprised more often than they expect.
How BahasaSystem.com compares
BahasaSystem.com is a vocabulary-first system rather than a game. Its 1,500 most common words are split into beginner, intermediate and advanced levels and 41 themes, and every card shows the Indonesian word, the Malay equivalent, and whether the two differ — more than 680 words are marked. You can switch the voice between Indonesian and Malay pronunciation on any card.
Around the words sit the tools Duolingo lacks for Indonesian: 90+ dialogues and news articles at three levels with audio and comprehension questions, quizzes, and an Interval Study deck that uses the FSRS spaced-repetition algorithm. Everything runs in the browser without an account; a free account syncs progress across devices and the optional Premium removes the daily limits.
The verdict: which should you choose?
If you want a free, playful introduction to Indonesian and nothing more, Duolingo is fine. If you need Malay, Duolingo is not an option. For anyone serious about vocabulary — the thing that actually lets you read a menu, follow a conversation or understand the news — BahasaSystem.com offers more words, both languages, real texts and better review scheduling.
They also combine well: keep the Duolingo streak for sentence patterns and use BahasaSystem.com to learn the words Duolingo never reaches, with the Malay forms alongside.