Falcon is described as 'A simple, markdown based note-taking app' and is an app in the News & Books category. There are more than 50 alternatives to Falcon for a variety of platforms, including Windows, Mac, Android, iPhone and Online / Web-based. The best alternative is Joplin, which is both free and Open Source. Other great apps like Falcon are Standard Notes (Freemium, Open Source), Microsoft OneNote (Freemium), Evernote (Freemium) and CherryTree (Free, Open Source).
Versatil Markdown is a hypernotebook built around Markdown/CommonMark, with 1Password integration, HTML/CSS support, syntax highlighting, frictionless keyboard flow, smart drag-n-drop insertion, multiple themes, document aliasing, and more.
Publicnote is a super-simple, free, public notepad. Enter any title to access a note. No account required. Every note is public. You are free to modify any note you find. Every note is encrypted. You must know the title to see the note.