One chat.
Two AIs.
Better speaking.

A Character AI to talk to.
A Tutor AI to learn from.
Find your words, one conversation at a time.

A few chats free. No account needed.

Hello! こんにちは! ¡Hola!

Ava, a Character AI with pink hair and a yellow crown

Character AI to talk to

Tutor AI to learn from

The words will come.
We’ll help you find them.

SO MUCH TO TALK ABOUT.
10 languages to say it in.

English · 日本語 · 中文 · 繁體中文 · 한국어 · Español · Français · Deutsch · Italiano · Português

TWO AIs. ON YOUR SIDE.

You know more than
you think. Let’s say it.

What makes speaking hard for you?
Pick something that sounds familiar.

Character AISomeone to talk to

Keeps the conversation moving.

Pick a scenario and just talk. The Character AI plays the scene in the language you’re learning.

Tutor AISomeone to learn from

Gives you a hint when words won’t come.

Ask for help in your native language. Get a gentle explanation, then give it another go.

A LITTLE HELP. RIGHT WHEN YOU NEED IT.

Just talk casually.
And learn instantly.

You’re ordering coffee. You know what you want.
But how do you say it?

There’s a Tutor AI right there in your chat.
Ask, get a hint, and keep the conversation going.

01 Pick a scene from everyday life.
02 Speak. Get a little help if you need it.
03 Say it better. Keep talking.

Ava Character AI · Japanese

いらっしゃいませ。ご注文はお決まりですか？

Tutor AIYour native language

I want to order a cappuccino. How do I say that?

You could say:
カプチーノをひとつお願いします。

カプチーノをひとつお願いします。

かしこまりました。店内でお召し上がりですか？

An example conversation. Your next one is up to you.

FOR THE LIFE YOU WANT TO SPEAK IN.

Small talk. Big moments.
And everything in between.

Practice everyday scenarios, or describe your own in your native language.
The Character AI brings the scene to life.

Your usual coffee.

Make that first order feel a little more natural.

AT THE CAFÉ

A new place.

Find the words for wherever the day takes you.

ON YOUR TRAVELS

Your next chapter.

Rehearse the conversation that matters to you.

YOUR OWN SCENARIO

Hanasu² Tutor Summary with a conversation recap, natural phrasings, grammar, and vocabulary

A conversation worth keeping.

THE CHAT ENDS. THE LEARNING STAYS.

That thing you just said?
Make it yours.

Turn any chat into a study card with Tutor Summary. Come back to the words, grammar, and natural expressions you want to remember.

Hear it again.

Replay any line, including your own. Listen to how it sounds.

Understand the why.

Ask the Tutor about a phrase, a mistake, or a more natural way to say it.

Pick up where you left off.

Your chats stay saved on your device. No account or sign-in needed.

A FEW THINGS TO KNOW.

Glad you asked.

What makes Duo AI different?

You talk with two AIs in one chat. The Character AI plays a scene in the language you’re learning. The Tutor AI helps you understand and improve in your native language, without having to leave the conversation.

Which languages can I practice?

English, Japanese, Simplified Chinese, Traditional Chinese, Korean, Spanish, French, German, Italian, and Portuguese. Learn any of them, with the Tutor AI explaining in any of them. The app itself comes in all 10.

Do I have to speak out loud?

You can speak or type. To speak, tap the mic, then tap again when you’re done. You can edit the transcript before sending it. The Character AI replies in voice and text.

Can I try it for free?

A few chats are free to start. Subscribe to Hanasu² Plus or Pro to keep talking. Both offer plans billed every three months or every year. See current pricing in the app.

Do I need an account?

No account or sign-in is needed. Your chat history is saved on your device. Messages are processed by AI services to generate replies. Read our Privacy Policy for details.

YOUR NEXT CONVERSATION STARTS HERE.

A little courage.
A few words.
A whole new world.