Lettera beta, a native Markdown editor for macOS originally developed as part of Bear 2.0, is now available as a standalone app through TestFlight. It offers WYSIWYG Markdown editing, folder-based workspace management, rich formatting options, file and folder handling within the app, and various export features. Users are encouraged to download the beta, provide feedback, and help shape the final product.
https://blog.bear.app/2026/06/introducing-lettera-a-native-markdown-editor-for-mac-now-in-beta/