SynNotes is described as 'Simple syntax highlighted Notes manager with incremental full-text search and GMaill like tags as folders' and is an app in the Development category. There are more than 50 alternatives to SynNotes for a variety of platforms, including Windows, Mac, Android, Online / Web-based and Linux. The best alternative is Joplin, which is both free and Open Source. Other great apps like SynNotes are Standard Notes (Freemium, Open Source), Evernote (Freemium), Simplenote (Free, Open Source) and CherryTree (Free, Open Source).
Rebel aims to provide you a distraction-free note taking experience. Focus more on writing and less on formatting and saving. As you write your note, Rebel will format it based on your markdown syntax.
USticker is free of charge version of "MakerX" app. USticker is notebook app for your iPhone or iPad with set of tools for organizing. The app lets you make quick notes with sketch/photo-sketch and categorize ones with special very efficient markers for organizing.
It is fast, easy to use and delivers all the functionality you need without distracting you with anything beyond that. No more clutter. Just the information you need. Quick, easy, convenient. Organize your life. Be productive. Focus on what's important for you.