Small apps that respect you.
Buko Labs is a tiny independent studio designing privacy-first, offline-first apps — and writing about how they get built, decision by decision.
What we build
Focused tools, each solving one problem well — no bloat, no dark patterns.
LockMemo
A private, offline-first encrypted vault for passwords, 2FA codes, notes, and files. No account, no cloud, zero-knowledge — only you can open it.
Learn more →SoloScan
A fast, no-nonsense document scanner. Capture, crop, and export clean PDFs right from your phone.
Learn more →JP Numbers Drill
Train your ear and eye for Japanese numbers — counters, prices, dates — with quick, repeatable drills.
Learn more →How we work
A few principles that show up in everything we ship.
Privacy by default
No tracking, no analytics SDKs, no ads. Your data stays on your device unless you decide otherwise.
Offline-first
Our apps work without a connection. The network is a feature you opt into, never a dependency.
You own your data
Export anytime, in open formats. No lock-in, no hostage-taking, no vendor cloud you can't leave.
Built in the open
We document the journey — the wins, the dead ends, and the trade-offs — on the blog.