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).
NixNote, formerly Nevernote, is an open source client for Evernote . It is written in Java so it will also run on Windows & OS-X, but the primary focus has been to try and get a usable environment for Linux.
Notebooks allows you to create as many books as you need. Notebooks stores and displays almost any type of document: plain text and formatted text, PDF, web pages, MS Office or iWork documents, photos, videos, music and much more.
WRITE OFFLINE You can write/edit your notes on your laptop even if you are offline. MULTIPLE DEVICES Boostnote is available for browser, desktop and mobile. SYNTAX HIGHLIGHT Boostnote can highlight code syntax in more than 100 languages.