Your knowledge,
your privacy.
Luukza is a suite of privacy-first apps for language learners, knowledge workers, and students. Built by one person. Designed to last.
Free tier always available · No credit card required
Two apps. One ecosystem.
Each app is powerful on its own — and designed to work together.
Lexicon
Build your vocabulary
A dictionary and vocabulary builder for language learners and conlang creators. Prefix and infix search, IPA pronunciation, tags, and offline-first storage.
Mind
Map your knowledge
A personal knowledge management tool with graph view, cross-links, and web clipper. See how your ideas connect.
Built differently.
Privacy by default
Your data stays on your device unless you choose to sync. What you write is yours.
Built with care
Every line of code written by one developer with a genuine stake in making great software.
Sync when you want it
Use offline for free, or upgrade to sync your data securely across all your devices.
AI that earns its place
AI features are purposeful additions, not gatekeepers. Every core feature works without them.
Start with Lexicon — free.
Available now on iOS. No account required to get started.
Download LexiconiOS · Offline-first · Free tier always available