About ONGAJI

We build small services quickly, put them out, and grow the ones that get a good response.

What we make

ONGAJI is a sole proprietorship that opened in 2026. One founder builds small apps and web services that take the friction out of everyday life.

Each service is introduced under its own name. ONGAJI is the business behind them, responsible for operations, terms of use, personal data handling, and support.

How we work

• Start small. We ship small experiments before big plans.
• Watch the response. We decide the next step from how people actually use a service.
• Grow what works. We put more time into services that people use.

Business information and contact

• Name: ONGAJI (온가지)
• Business type: Information & Communication · Application software development
• Address: 164, Eunpyeong tunnel-ro, Eunpyeong-gu, Seoul 03444, Republic of Korea
• Contact: hello@ongaji.app