No analytics, no cookies, no fingerprinting, no pixels. This page and the app load from static files and phone home to no one.
There is nothing to sign up for, so there is no profile of you to keep, sell, or leak.
Your library lives in your browser's memory while you work and in .pack files you save yourself. If you use the backup feature, your packs travel directly from your browser to your own web hosting — configured by you, secured by your PIN, invisible to us.
The small card on the start screen linking to other projects by the same maker is a plain link. It carries no tracking parameters and fires no beacons.
Like nearly every website, the web host serving these files keeps standard access logs (IP address, page requested, time). We add nothing to that, and no third party receives it.
If any of the above ever changes, this page will say so plainly, in the same tone.