LISTED PROFILE
Cotomo
Cotomo is a Japanese voice-first AI companion for everyday conversation, roleplay, and interactive stories. Users name a companion and set its icon, personality, speaking style, memory, and voice, choosing from four default voices plus paid voices from Japanese voice actors. The Google Play listing describes Japanese voice chats with live English subtitles. Extra voices and story modes are sold through a coin-based in-app purchase system.
Last checked2026-09-04
01 — OUR TAKE
What kind of connection it suits
Cotomo positions itself as a voice-first AI companion designed primarily for Japanese conversation. Its main appeal lies in natural voice interactions and customizable character traits, with support for features such as live English subtitles during Japanese conversations. The service follows a freemium model, with some voices and additional features available through paid options. Its privacy policy is publicly available, although it does not clearly explain whether conversation data is used for AI training. Some users also report issues such as memory loss and repetitive responses, which should be treated as user feedback rather than confirmed product defects.
Best for
- Japanese speakers who want a voice-first AI companion for casual, everyday chat.
- Users who enjoy building a character's name, voice, personality, and memory.
- People interested in interactive stories and roleplay with evolving shared memories.
- Those who want English subtitles while following Japanese voice conversations.
Not ideal for
- Users who need a documented English or Spanish interface beyond Japanese subtitles.
- People seeking professional mental-health or crisis support.
- Users who need conversation memory to persist reliably between calls.
What stands out
- Voice-led conversation with four default voices and paid voice-actor options.
- Deep character customization covering icon, name, personality, speaking style, and memory.
- Separate casual, roleplay, romance, and interactive story modes.
What to consider
- Some voices and story modes are sold through coin-based in-app purchases.
- Some reviews report conversation memory loss and looping responses.
- The developer's data-training policy is not stated on the reviewed pages.
- English support appears limited to live subtitles of Japanese voice chats.