I got tired of apps trying to monetize my attention.

Notifications, ads, endless feeds — it never stops.

So I decided to build an Android app with zero backend.

I'm a Japanese developer, and English isn't my first language, so I used AI to help write this article.

How many productivity apps have you downloaded, only to be greeted by a mandatory registration screen, bloated interface, pop-up ads, or a constant push for a premium cloud subscription?