Listy

Listy is a mobile application designed for privately saving and organizing various types of content, such as movies, books, video games, and links, into customizable lists. It offers features like instant suggestions, detailed information retrieval, and the ability to share lists publicly. The app emphasizes privacy by storing content on the device and provides a clean, user-friendly interface.

Listy is a strong match for the URList concept. It allows users to save various types of content, including links, and organize them into lists and categories. It explicitly mentions public sharing of lists, saving content from anywhere (instant link adding), and a focus on a clean interface. While it doesn't explicitly mention 'Tufte-style side notes,' it does allow for adding notes to items. The app also supports rich media previews for different content types and offers sign-in/authentication for backup and sync features, along with mobile responsiveness.