Anytype is a Swiss cross-platform, privacy-focused app for organizing notes, projects, and personal knowledge bases, designed with an emphasis on local data storage and user control. The software enables users to structure information within a flexible, object-oriented system, allowing the creation and management of complex templates. These templates can optionally be published to a gallery provided by Anytype, supporting knowledge sharing within the user community. Anytype is an open-source project, making its source code publicly accessible and modifiable. The app is available for desktop and mobile devices.

Supernotes is a cross-platform note-taking app with dedicated apps for Mac, Windows, Linux, Android, iOS, as well as having a web app. It's available in multiple european languages, including English, German, French, Italian and Spanish – with the developers encouraging community-driven translations. It's built by a team of two, with the company based in London, UK.
Supernotes encourages to be thoughtful about note-taking, you write short-form notecards. Every notecard is taggable, nestable, linkable, and shareable — so you can connect your knowledge in flexible ways. There are plenty of ways to view your cards too: as a list, a grid, in columns, as a graph, on a map, as flashcards with spaced repetition, or in a table layout.