Tree Notebook vs PureWrite

Tree Notebook is a hierarchical notes manager designed for keeping personal information. Tree Notebook runs on an iOS device (iPhone or iPad). Besides, there is a counterpart for OS Windows which can be synchronized with up to three iOS devices via a local Wi-Fi network. No access to Internet is needed for synchronizing. The data in Tree Notebook is divided in two parts: the public part accessible without password and the encrypted private part which requires password for opening. The data in every part is arranged as a tree-like multilevel hierarchy of folders and notes. Any folder can include notes and other folders, and so fourth. Any item (a note or a folder) can include text of any size. The items can keep attachments like images or other files. The app can represent data in several ways: as a tree, as a list of items (folders and notes) on the current level, as a list of manually selected items ("Favorites"), or the items visited recently ("History"). The contents of an individual item can be viewed or edited. Tree Notebook includes powerful search facilities: simplified or conditional global search, local search inside an item text. The items can be sorted by several criteria: alphabetically, by creation or modification time, and in manually defined order. The item titles can be attributed using a variety of font types, colored flags, graphic icons. Any item can have an Event attribute and serve as an alarm clock or reminder. A calendar feature is available to help managing events. The app is free to use both on iOS devices and desktop PC.

PureWrite is a writing app that gets out of the way. Open a folder of Markdown files you already keep, open a document, and start typing. The file sidebar and the table of contents fade out completely — not dimmed, gone — until only the page is left. Move the pointer back and they return. Nothing else is on screen. No tabs, no split panes, no graph, no badges, no notifications, no sync spinner. One document at a time, by design. That is the whole idea. Everything else is there to serve it. • A folder you already have. No import step, no vault format, no database. The same folder can stay an Obsidian vault or a git repository — keep using them. PureWrite is simply the window you open when the task is to write. • Formatted text, plain files. You edit the document as it looks, and the file on disk stays ordinary Markdown — tables and links included. • Search the whole folder for the moment you do need to leave the page, with the context around every match. • A toolbar you can pare down to nothing. Keep as many of the 18 buttons as you want, or none. • Hebrew and English in one document, each paragraph facing the direction its own words ask for, with nothing written into your file to make it work. • Autosave a second after you stop typing. There is no save button to remember. Nothing leaves the device: no network, no account, no telemetry. macOS, iPhone and iPad. Free, with no in-app purchases.