Symbiose Get the app

Learn a language
by talking to your friends.

Don’t practice for a future conversation. Have the conversation now.

Not available yet App Store Not available yet Google Play

Free to message. No strangers, no profiles to browse.

  • Bonjour
  • Hola
  • 你好
  • नमस्ते
  • Kumusta
  • Olá
  • 안녕하세요
  • Hello
Tap any word
Understand

Understand every message.

Tap a message, or just one word, to see what it means in your language.

  • 8 languages, translated on the phone
  • Hear how it sounds
In French
You wrote · Yes, around 10?
Oui, vers 10 h ? Use
Write

Stuck? Say it your way.

Write it in your own language. Symbiose shows you how to say it in theirs, before you send.

  • Reply suggestions at your level
  • Corrections as you write
7-day streak
B1 Your level24 words
Remember

Your chats become lessons.

Words you meet become flashcards, with the sentence they came from. Your level grows with every conversation.

  • One tap to save a word
  • A streak with a name on it
Warm up

No one to talk to yet? Practice with Sacha.

Sacha is an AI. Chat with it until your person joins, or whenever they’re asleep.

  • Replies in the language you’re learning
  • Tap any word it writes to see what it means

A 500-day streak means nothing if you still won’t send the message.

Practice apps

  • Sentences written for an exercise
  • You talk to the app
  • The streak is the goal

Symbiose

  • Sentences someone sent you
  • You talk to a person who answers
  • The conversation is the goal
Pricing

Messaging is free. Always.

Free

$0

  • Unlimited messages with your person
  • On-device translation in 8 languages
  • 3 AI actions and 3 Sacha messages a day
  • Flashcards from your own chats
Download free

Symbiose Plus

See in app monthly or annual

  • Explanations and writing help
  • Reply suggestions at your level
  • Corrections as you write
  • 100 AI clues a day in each chat
  • Unlimited chats with Sacha
Start with the app

Invite a friend, get 3 days of Plus.

FAQ

Questions people ask first.

Do I need someone to learn with?

One person is enough, and they don’t have to teach you anything. Until they join, you can practice with Sacha.

Which languages are supported?

English, French, Spanish, Mandarin, Hindi, Tagalog, Portuguese and Korean. Translation runs on the phone in the iOS and Android builds; the browser has no production translator.

Does the other person need to be learning too?

No. They can just chat in their own language. If they’re learning yours, Symbiose helps them too.

What happens when the free allowance runs out?

You keep messaging. Conversations and saved words are never behind the paywall, and the allowance comes back the next day.

What happens to my conversations?

They stay between you and the person you’re talking to. Help requests are only used to answer you. The details are in the privacy policy.

Blog

Notes on learning by talking.

All posts

Your streak should have a name.

Pick one person. Start today.

Not available yet App Store Not available yet Google Play