NotesHolder has been discontinued. Similar apps include Zim, which is free and open source. Other options are Todoist, TiddlyWiki, CherryTree and Trilium Notes. There's no shortage of Note-taking Tools like NotesHolder, with more than 100 alternatives for Windows, Mac, Linux, Android and iPhone.
WizNote is a Note software, which is especially designed for Internet users and mobile Internet users. WizNote focuses more on notes of rapid collection, management, reading and sharing. WizNote is smaller, more stable, and more suitable for computers, phones and mobile devices.
China
Privacy oriented, without vendor lock in note organizer, todo list desktop application. Work offline with text, markdown and pdf files.
Notational Velocity is a mouseless application for storing and retrieving notes.
United States
Germany
EU
RightNote will help you get a grip on information overload. It is designed to be easy to use for the new-comer, but also provide advanced features once your notes start to accumulate. RightNote can store text notes, source code, spreadsheets and webpages.
Australia
A simplified, RedNotebook-type journal/diary app. With a focus on minimal design and a distraction free writing environment. Makes a folder full of dated text files that are easy to access even without the journal program.
MyTetra is open source and cross platform personal manager for information accumulation. It is powerful program for data memorization and structuring notes.
Quiver is a notebook built for programmers. It lets you easily mix text, code and Markdown within one note, edit code with an awesome code editor, live preview Markdown and LaTeX cells, and find any note instantly via the full-text search.
United States
myBase is a unique free-form database software that allows entry of unstructured text, webpages, images, documents, emails and even arbitrary files without regard to length or format. All information is automatically compressed and stored in the tree structured outline form.
China
Organize and edit short notes using a minimalist interface with color-coded dots, Markdown support, and word/character counts. Syncs instantly via iCloud across Mac, iPhone, and iPad. Features lightweight design, keyboard shortcuts, and distraction-free note capture.
United States
NoteGlow is a beautiful and elegant Mac Sticky Note app. Making the notes always visible on desktop or in menubar.
Piggydb is a Web notebook application that provides you with a platform to build your knowledge personally or collaboratively. With Piggydb, you can create highly structured content by connecting knowledge fragments to each other to build a network structure, which is more...
Japan
