Learn Indonesian on Mango Languages

Mango Languages uses algorithms to offer a personalized language learning experience. Language learners can speak and hear the language they are learning, participate in daily quizzes to reinforce their progress, and even engage in live conversations with native speakers around the world. Language instructors also use Mango Languages to create customizable lessons tailored to each student's current skill level.
Price: $6.67/month
Devices:

Learn Indonesian on Clozemaster

Summary: Clozemaster is a Web & iOS app that helps language learners practice and learn new words using fill-in-the-blank sentences. It's another gamified app like Duolingo.
Price: Free
Devices: Android, iPad, iPhone, and Web

Learn Indonesian on Tandem

Tandem is a free platform with a simple premise: there is probably someone out there who is learning your native language, and whose native language you want to learn. So they put you in touch with them. When you sign up, Tandem will review your application to make sure their platform remains safe and that the person you get matched with is also a keen language learner.
Price: depends
Devices: Android, iPad, iPhone, and Web

Learn Indonesian on HelloTalk

HelloTalk is a language learning app that allows users to communicate with others in different languages. It has both a free and premium version, and offers a variety of features to help users learn new languages.
Price: Free
Devices: Android, iPhone, and Web

Learn Indonesian on Brainscape

Brainscape is a customizable flashcard language learning app where you can pick the language you want to learn and then create your own personalized learning path. It prides itself on being "the world's smartest flashcard app".
Price: $9.99/month
Devices: Android, and iPhone

Learn Indonesian on Bravolol

Bravolol is a series of apps like "Learn French", "Learn Japanese", or "Learn Italian" that offer a basic language learning experience.
Price: depends
Devices: Android, iPad, and iPhone