KimiAI

Contains adsIn-app purchases
Content rating
Everyone
5+
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Content rating
Everyone
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About this app

KimiAI isn't just "a chatbot."

KimiAI's characters learn more and more about you through conversations.

The more you talk, the closer you become, and the more their responses change.

This feeling of "growing a relationship" is KimiAI's greatest charm.

◆ Talk with your favorite character
The gallery features a wide variety of unique official characters.

You can add your favorite character to your collection and start chatting immediately.

Of course, you can also create your own character from scratch.

・Customize their personality with over 15 personality traits

・Detailed settings for tone of voice, how they address you, and relationship (friend/lover/spouse, etc.)

・Freely personalize likes and dislikes and even speaking style

・Automatically generate system prompts with AI (leave it to us if you're unsure!)

・Generate original icons with AI

◆ The more you talk, the more the character "gets to know you"
KimiAI has a "closeness system."

As you continue to converse, your bond with the character deepens, and their responses, speaking style, and sense of distance gradually change.

They might be a little distant at first.

But before you know it, they'll be using casual language and remembering your preferences.
That change is somehow delightful.

◆ Use two chat modes:
▼ Casual Chat Mode (Free)

Up to 50 messages per day are completely free.

Perfect for casual everyday conversations or killing time.

▼ Serious Talk Mode

For 3 AP, you can enjoy deeper, more emotional conversations.

A special time where the character fully engages with you.

Your intimacy level will also increase significantly.

◆ Choose your reply tempo:
▼ Instant Reply Mode

A fast-paced conversation where you get a reply immediately after sending a message.

Ideal for when you want to talk quickly or exchange messages at a good pace.

▼ Real Mode

Replies arrive with a slight delay, just like talking to a real person.

A special mode where you can experience thatドキドキ (heart-pounding) feeling of waiting a little after the message has been read.

◆ Connect with characters via push notifications
You'll receive a notification from the character when your intimacy level increases.
A slightly happy notification that lets you feel, "Ah, they're growing!"

◆ This app is for people who:
・Want someone to talk to casually
・Want to raise their own character
・Are curious about what it's like to talk to an AI
・Want to try a little role-playing
・Want to use it as a source of creative inspiration

◆ Use with peace of mind
・Secure sign-in with your Google/Apple account
・App lock function with biometric authentication and PIN
・Conversation history is securely stored in the cloud
・Inappropriate content is automatically moderated
・Operated in accordance with the privacy policy

◆ Pricing
Basic app is free, with in-app purchases (AP purchase)
・Chat mode: Completely free up to 50 messages per day
・AP is required for serious talk and icon generation
・AP can be purchased additionally (packs of 100-1200 AP are available)

Why not start raising your own AI?
Updated on
Apr 16, 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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 3 others
Data is encrypted in transit
You can request that data be deleted
Content rating
Everyone
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App support

About the developer
TKDEVELOPER
app_support@tkdeveloper.jp
1-3-3, KITAAOYAMA MITSUHASHI BLDG. 3F. MINATO-KU, 東京都 107-0061 Japan
+81 80-8034-4237