Had it?
Track everything you own, entirely on your device. No cloud, no account, and it works in a basement with no signal.
Small iOS apps that open instantly, work with no signal, and never ask you to sign up for anything. Each one declares exactly what leaves your phone — here is the list.
This website collects nothing about you. No cookies. No analytics. No third-party scripts of any kind. You can check that in ten seconds with your browser's network tab — which is the point.