While there is dozens of valid criticizism about the little green owl we have to give credit, it's a wonderful free gamified way to start learning a new language. Thanks to it you would see if you are able to dedicate 5, 10 or 20 minutes per day in learning and practicing a new language, it's a great place to start with many different languages to choose from butyou won't become fluent with it.

Others worth mentioning: LingoDeer Rosetta Stone Babbel Drops Busuu

MosaLingua isn't as flashy or gamified as Duolingo and others however it uses Spaced repetition with a wonderfully built set of flashcards and set of languages. While also having lessons to read, listen to etc...

While being entierly free this method is one of the best to learn a language. It's based on thinking and not repetition or memorizing. You will listen to a teacher and one of their student, pausing, thinking, answering out loud and then resuming the audio. You can also download the audio or stream them from SoundCloud

Downsides

• You need to have a good english level to listen most of the courses are most of them are in english
• Some courses are more complete than others.

It's similar to Language Transfer but paid and expensive. If you have money and most important determination this is probably worth it as it's one of the best courses you can get.

Listening to music and analyzing the lyrics is a powerful method to learn a language as it will typically motivates you.

Worth mentioning: Sounter LyricFluent

Anki is the main flashcards spaced repetition software. It's Free and Open Source and you can download community made packs of flashcards some are really well made and extensive. You can even download plugins and transform your Anki experience to something truely unique like a Pokemon game based on your learning.

The iOS and iPadOS app is one time payment but it's worth it and is cheaper than most of the paid apps or services that will do the same without the wonderful community built around it.

This is a Free and Open Source client that you can get on Android

An app to learn vocabulary with the most used words per language. It is completely free of charges without any ads and uses a custom spaced-repetition algorithm.

Basically spaced repetition but with audio so you get the pronounciation right quicker.

A huge community of people wanting to learn a language. Find someone that speaks the language you want to learn, that speaks the one they want to learn.

Private (or group) lessons with real human teachers.

Find community on discord or in some games you like to play.

There is a decent sized community of people their that want to learn new languages it's a great place to practice and you don't need a VR headset unlike the title emplies.

There is some community there as well.

This app let you read simoutanously in your mother tongue and the lanugage you wanna learn, it also have audiobooks.

Worth mentioning: Readlang Online website

A complete set of tools to make you practicing while watching videos or reading articles. Let you export to Anki and more to do.

Worth mentioning: Trancy

A free and open source chrome extension for language learning through YouTube, Netflix and more

A free and open source video player made exactly for language learning.