App Development

Ideas into products

Building apps that solve everyday problems, one at a time.

Services

/ Our products

01

Korenani

Discover and organize the content you care about. Information gathering, simplified.

Visit
02

Mytan

Turn the words you encounter into your own vocabulary notebook.

Visit

About

eight arms

Address

1-3-3 Kita-Aoyama, Minato-ku, Tokyo Mitsuhashi Building 3F

Phone

050-1726-9342

Established

December 8, 2025

Solo developer in Tokyo. Building apps that solve small, everyday problems.

2025
Est.
∞
Possibilities
8
Arms

Contact

/ Feel free to reach out via X (Twitter)

Email

info@8arms.io

Phone

050-1726-9342

Location

1-3-3 Kita-Aoyama, Minato-ku Tokyo, Japan

SNS & Content

@ysfmkndon
Solopreneur Lab