Filenotes is described as 'app designed for simple note taking and cloud sync. It has no closed or proprietary formats, no lock-in and is compatible with any device which supports text files' and is an app in the Office & Productivity category. There are more than 100 alternatives to Filenotes for a variety of platforms, including Windows, Mac, Android, Online / Web-based and iPhone. The best alternative is Joplin, which is both free and Open Source. Other great apps like Filenotes are Standard Notes (Freemium, Open Source), Evernote (Freemium), Simplenote (Free, Open Source) and CherryTree (Free, Open Source).
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.
Colorful & powerful sticky notes app for Windows & Phones. Set reminder alarms, attach them to any website or document, organize them using folders/tags, sync sticky notes between devices & send notes across LAN or to any contact across the globe.