Notational FZF is described as 'Vim is great for writing. But it isn't optimized for note-taking, where you often create lots of little notes and frequently change larger notes in a separate directory from the one you're working in' and is a Note-taking App in the Office & Productivity category. There are six alternatives to Notational FZF for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and Android. The best alternative is Tomboy, which is both free and Open Source. Other great apps like Notational FZF are Notational Velocity (Free, Open Source), nvPY (Free, Open Source), Hyperdraft (Freemium, Open Source) and Vimwiki (Free, Open Source).
Notational Velocity is a mouseless application for storing and retrieving notes. With Notational Velocity, searching for notes is not a separate action; rather, it is the primary interface. Searching encompasses all notes content and occurs instantly with each key pressed.