AI and systems
that move with your business.

ABOUT US

Problem-solving through co-creation

We start at our clients’ side, understanding each problem deeply. Together we design AI-powered systems and deliver solutions that genuinely help.

Systems that evolve with AI

We make the most of data and technology to build efficient, scalable systems — built to keep improving with AI and to adapt to whatever comes next.

Lasting partnerships

Beyond delivery, we keep operating and improving — supporting our clients’ growth for the long term, learning and growing together through AI.

ITSUCARA opens up the future of business by co-creating with AI — building new value together with our clients.

Learn more

SERVICES

MOBILE APPS

Smart-device application development

SYSTEM MANAGEMENT

Web application and system development

WEB DESIGN

Web and mobile site production

PRODUCTS

Products we design, build and ship ourselves.

Koemoji

Japanese voice input for macOS. Recognition and clean-up both run on the Mac — neither your speech nor your text leaves the device.

Available now

koemoji.jp

Qopito

Clipboard history that lives in the macOS menu bar. Call it up with ⌘⇧V and edit an entry before you paste it.

Coming soon

qopito.com

Recto MD

A Markdown reader that opens instantly and sets your files like a book, on Mac, iPhone and iPad.

Coming soon

rectomd.com

Pret

Turns a textbook, a PDF or a topic into a deadline-bound English course, generated by AI. Coming first to iOS.

In development

pret.jp

COMPANY

CompanyITSUCARA, K.K.
AddressShibuya Dogenzaka Tokyu Bldg. 2F-C, 1-10-8 Dogenzaka, Shibuya-ku, Tokyo 150-0043, Japan