Quoll Writer is described as 'Focus on your words not the interface' and is an app in the News & Books category. There are more than 25 alternatives to Quoll Writer for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is Joplin, which is both free and Open Source. Other great apps like Quoll Writer are Typora (Free), Microsoft Word (Paid), Manuskript (Free, Open Source) and Scrivener (Paid).
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor.
Manuskript is an open-source tool for writers, with outliner, character management, plot development, distraction-free editor, etc. Outliner Organize your thoughts and snippets in a hierarchical manner. Organize them as you wish, reorganize them on the go.
AbiWord is a free software word processor. The name "AbiWord" (pronounced "Abby Word") is derived from the root of the Spanish word "abierto", meaning "open". It runs on Linux, Mac OS X (PowerPC), ReactOS, BeOS (unsupported), AmigaOS 4.