
Cotomo
: How to use it, features, and the business problems it solves
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What is Cotomo?
An AI conversation app for smartphones. Enjoy natural conversations as if talking with a friend — for advice, casual chat, or working through your thoughts. Voice-first with text input also supported. A Japanese-made AI companion service developed by Spiritus, known for warm, natural Japanese conversation.
Business problems it solves
About "Cotomo"
How to Use
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Download and install the app
Download "Cotomo" from the App Store or Google Play and install it.
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Create an account
Launch the app and create an account.
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Customize your AI character
Set the AI's name, voice type (male/female), conversation speed, and other preferences to create your own AI character.
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Start a conversation
Tap the microphone button and speak to begin a conversation. The AI responds in voice.
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Review conversation history
Past conversations are accessible within the app.
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Create and share characters (premium feature)
Create AI characters voiced by professional voice actors and share them with other users.
Features
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Natural voice conversation
Have real-time voice conversations with AI.
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Customizable AI characters
Freely configure the voice type, conversation speed, name, and other settings.
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Conversation history
Review and revisit past conversations within the app.
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Professional voice actor voices
Create AI characters voiced by professional actors such as Hikaru Midorikawa.
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Character sharing
Share created AI characters with other users.
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Topic recommendation
The AI suggests conversation topics to keep the dialogue flowing naturally.
Pricing
| Free | Premium content (in-app purchases) | |
|---|---|---|
| Price | ¥0 | Purchase Cotomo coins |
| Voice conversation | Yes | Yes |
| AI character customization | Yes | Yes |
| Professional voice actor voices | No | Yes (requires Cotomo coins) |
| Character sharing | No | Yes (requires Cotomo coins) |



