Jotura
What it isA free notes app for the desktop and Android whose vault is an ordinary folder of .md files. It opens an existing Obsidian vault as it stands, with no import step, and saving a file you did not edit returns a byte-identical file. You get wikilinks with a [[ picker that matches aliases, nested tags with a Tags pane, daily notes with a calendar, a Tasks pane across the vault, a real table editor, keyword search over 10,000 notes in about 8 milliseconds, and search by meaning on the desktop that runs on-device or through OpenAI under your own key.
Who it suitsSomeone who wants Obsidian's plain-file foundation plus things Obsidian leaves to plugins or to nobody: searchable copies of dropped-in PDFs and Word files, and an Android book reader for EPUB, PDF and CBZ that saves your highlights as a Markdown note per book. Jotura Sync adds end-to-end encrypted sharing of a folder or a single note with editor and viewer roles, and three years of version history with attribution.
The honest limitationThere is no iOS app, so on a phone it runs on Android only, and it has no plugins, graph view, canvas or publish-to-web. It is closed source, which means you are trusting our description of how it works because you cannot read the code. Sync is £4 a month or £40 a year with no free trial, and with Obsidian Sync at $4 to $8 a month billed annually the two cost about the same. Jotura is our app, and these are the limits we would want to read before downloading it.