JOiNii

Contains ads
Content rating
Everyone
1+
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Content rating
Everyone
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About this app

A language learning app that lets you interrupt AI conversations.

Typical AI conversation apps have the AI ​​speak to you and wait for your response. If you remain silent, the conversation stops, and the silence becomes awkward. JOiNii is the opposite. Emma and Liam continue talking without you, and you decide when to interrupt.

【Features】
■ Two native speakers continue the conversation
Emma and Liam have a natural-paced conversation. You can let them choose the topic or enter your own.

■ You decide when to interrupt
Press "Speak" to speak, then "Send." Hands-free (automatic detection) mode is also available. The conversation continues even if you remain silent, so it's perfectly fine to have days where you only listen.

■ Review "Where I interjected"
After the conversation, it shows you what you said on each line. You can listen to the full conversation again by tapping, and you can also play the entire conversation.

■ You can discuss things you couldn't say in Japanese.
By writing "This is what I wanted to say" in Japanese, you'll receive a short, appropriate English phrase in response.

■ Practice before using in a conversation.
The phrases you could have said are stored in your practice repertoire. First, say them aloud five times to get used to them, then replay the conversation and try saying them in the same place. This is a two-step process.

■ Age range of the topic × difficulty of the language.
You can choose "what to talk about" and "how difficult the language is" separately. You can also choose to use simple language for adult topics.

■ Freely combine your native language and the language you're learning.
The combinations are flexible. It can also be used by English speakers learning Japanese.

【Recommended for people who:】
- Have struggled to maintain a conversation with AI in a one-on-one setting
- Have trouble finding the right timing to join a conversation and always end up just listening
- Have an upcoming important event such as an overseas assignment, studying abroad, or a party
- Are intermediate to advanced learners who find the pace of textbooks insufficient
【About Payment】
You can play for free once a day. You can earn additional challenges by watching video ads (up to 15 times/day).
A language learning app that lets you interrupt AI conversations at any time you like.
Updated on
Aug 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Personal info, App activity, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

・AI の利用枠を使い切っている間は、その旨をアプリ内でお知らせするようにしました。これまでは会話を始めようとした時にエラーだけが出ていました。
・復旧したら自動で元どおり会話できます。
Content rating
Everyone
Learn more

App support

About the developer
QUINAS
tsuyoshi@quinas.jp
1-1-14, SHIMOMEGURO KONOTORA BLDG. 7F. MEGURO-KU, 東京都 153-0064 Japan
+81 80-4660-1783

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