Independent Intelligence Studio · Tokyo

R▱UT1

Private, bilingual tools for real-world coordination.

R▱UT1 is an independent AI studio in Tokyo building privacy-first tools for everyday coordination, starting with daily life and moving toward industrial systems. Below: what's live, and where we're headed.

Products

What we're building

Two products built from real daily friction and refined through use.

Live · Web & iOS

Home Brain

Your family's second brain. One private, bilingual app for meals, pantry, tasks, and household coordination, with AI that turns the mental load of running a home into something shared and organized. Built for families living across Japanese and English.

Explore Home Brain Visit home-brain.app App Store

Beta · iOS

Home Ledger

A private family budget for households living across languages and countries. Track allowances, bills, and settle-up without bank logins or ads, with data kept on your phone and shared only with the family you choose.

Explore Home Ledger

Questions

Three questions we keep pulling on

The studio is organized around three directions, each grounded in shipped products or lived technical questions.

Bilingual intelligence Japanese and English as a first-class problem: translation, live transcription, mixed-language workflows.
Private operational memory AI that organizes recurring load without exposing more than necessary.
Applied industrial AI A process engineering background and long-term interest in dependable AI for complex real-world systems.

Explore open questions

Contact

Collaborate or get in touch

R▱UT1 is open to conversations with builders, researchers, and partners working in bilingual AI, privacy-first products, speech interfaces, and applied industrial AI.

Get in touch