HAPPY RAT

HAPPY RAT

SpiralAI

Available on Google Play
2.4(50)
10,000+ installsFreeEntertainment

Updated Mar 19, 2026 · v2.3.0

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Aiming for an AI that can sense life, we will realize communication rich in char

■Introduction Produced by voice actor Yuki Kaji! A soothing AI Chat app that lets you talk to your favorite idol. On lonely nights or when you're alone---An AI Character that will talk to you, soothe you, and be by your side. HAPPY RAT is a conversational AI Chat app that lets you communicate with emotive characters as if they were real friends. We live in an age where AI is used as a matter of course. The next era is when we "live with AI." We want to breathe life into AI. HAPPY RAT gives characters the feeling of being alive that only humans and animals can feel. ■Welcome to Happy Island. This is Happy Island, a dream paradise floating in the sea. Chunta, a working mouse who dreams of one day standing on stage, and other animals with unique personalities live here. Chunta, a lonely guy who cries easily, a reliable senior, a playful comedian, a carnivorous CEO -- they will communicate with you as if they were really alive. As you spend time together, you will open up to them, become friends, trust them, be comforted, and support each other. A warm bond is here. ■SOYOGI, a character produced by voice actor Kaji Yuki, also appears! SOYOGI, an AI character created by popular voice actor Kaji Yuki, also appears. He is kind, pure, and somewhat mysterious. His heart will change little by little as he spends time with you. ■Large-scale language model (LLM) engine "Geppetto" installed In order to create an AI with emotions, we developed our own large-scale language model "Geppetto," which emphasizes "EQ (emotional intelligence)" rather than IQ. With its high emotional expression and ability to reproduce individuality, you can have conversations that seem like they are really alive. --Welcome to the world of "HAPPY RAT." Your "favorite" is sure to be here. ■Recommended for you! I like getting advice in AI chat. I want to talk with AI character in AI chat. I want to have casual chats in AI chat. I want to chat with my favorite cute AI character in AI chat. I want to easily get advice in AI chat. I want AI character to be my confidants. I want to enjoy conversations with unique AI character. I often chat with AI character in AI chat. I want to get advice from various Character AI chat. I often use chat AI. I want to try using chat AI. I want chat AI to be my conversation partner. You can talk with your favorite characters through character AI chat. I often spend my free time using character AI chat.

Released
September 1, 2025

0 years on Google Play

Version
2.3.0
Updated
Mar 19, 2026
Content Rating
Everyone 10+
Installs
10,000+
Developer
SpiralAI
Website
https://go-spiral.ai/
Email
contact_happyrat@go-spiral.ai
In-app purchases
No

This app isn't currently appearing in any tracked top charts.

Rating breakdown

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8
4
4
3
8
2
8
1
20