Fubukisoft

Who we are

Fubukisoft is an independent software company. We design, build, publish, and maintain our own applications rather than working as an agency, which means the people who decide how a product should behave are the same people who write it.

Fubukisoft is the brand we publish under. It is operated by PT. FUBUKI SOFT INDONESIA, the legal entity behind our applications and the developer account they are published from. You can reach us at contact@fubukisoft.com.

We are deliberately small. We would rather release one application we are willing to keep supporting for years than a shelf of thin ones, and we prefer to be judged on the products themselves.

What we build

Our work is mobile-first consumer software, with the services and data infrastructure that sit behind it. Current products:

How we build it

Design first, then code

We begin with what a person is actually trying to do. Interfaces are built to be readable and calm, to work on a phone held one-handed, and to be usable with a screen reader, larger text, or reduced motion.

One codebase, real platform behaviour

Our applications ship to iOS and Android from a shared TypeScript and React Native codebase, and we use the platform properly where it matters — camera, sign-in, notifications, and in-app purchases handled by Apple and Google rather than reimplemented by us.

Data you can trace

We use managed Postgres with row-level security, versioned schema migrations, and server-side functions that hold anything a client should never see. Where a product shows a number, we record where that number came from.

AI used honestly

We use language models for what they are genuinely good at — explaining, summarising, and answering a question in context. Figures and facts are produced by deterministic code, and a generated answer is checked against that code before it reaches anyone. If a model invents a number, the product withholds it and shows the measured one instead.

Privacy as a default

We collect what a feature needs and no more, we tell people what we hold, and every application has a route to delete an account and the data attached to it.