Own your files
Your information stays in files you can keep, move, and back up yourself.
Application software · Mobile apps
Simple software for keeping what matters.
ZINNIASHARK develops thoughtful tools that help people organize, protect, and keep their information for the long term.
Our first product
A record-keeping tool that stays with you.
Adequora Writer keeps writing, tables, images, audio, and video together in one local file. No account, server, or subscription required.
LOCAL · PRIVATE · SIMPLE
Keep your thoughts in one place.
Organize your records in a lightweight `.adq` file you can keep and open yourself.
Our approach
Useful by design.
We believe software should earn its place in your workflow: clear, dependable, and respectful of your ownership.
Less getting in the way
Focused features and calm interfaces help you spend more time doing the work.
Built to last
We make tools with long-term access and practical everyday use in mind.