OpenTodoList vs relnote

OpenTodoList is a todo list and note taking application. Organize todo lists, notes and images in libraries, which can be stored either completely local on the device you are working on (and hence ensure no information leaks out to untrusted third parties) or use the built in synchronization features which allows you to synchronize your libraries across devices using your self-hosted NextCloud or ownCloud server, other WebDAV servers or Dropbox. In addition, a library is just a directory holding the items of your library as simple files - this allows you to use any kind of third party synchronization tool to sync your information.

One calm app for everything you think, write, and remember — private by design. Relnote brings your notes, ideas, and knowledge into a single elegant workspace. Write in clean Markdown, connect your thinking with #tags and [[wikilinks]], and see it come together in a visual graph. Then lock anything you want behind zero-knowledge encryption that not even we can read. WRITE THE WAY YOU THINK - Clean Markdown editor: headings, lists, checkboxes, bold and italic. - Inline math with $...$ for quick formulas. - Draw inside any note — sketch a diagram or jot an idea by hand. - Voice notes: dictate and it becomes text. - OCR: snap a photo and pull the text straight out of it. ORGANIZE WITHOUT FRICTION - Notebooks to group related notes. - #tags that auto-link as you type. - [[wikilinks]] between notes — tap to jump, or create a new note on the spot. - Quick switcher: find any note by title in a keystroke. - Local-first and fully offline — your notes are always there. SEE THE BIGGER PICTURE - Brain view: a living graph of how your notes connect. - Mood line: on-device sentiment of your writing over time — your journal's emotional arc, computed privately with no server AI. - Daily note: today's calendar events pulled in automatically. BRING IN WHAT MATTERS - Import EPUB or PDF — each chapter becomes its own note. - Presentation mode: turn any note into clean slides in seconds. PRIVATE BY DESIGN - Zero-knowledge end-to-end encryption (AES-256) for any note or notebook. - Optional biometric unlock with Face ID or Touch ID. - Everything is encrypted on-device. Nobody — not even us — can read your content. - End-to-end encrypted sync keeps your notes in step across your devices, still unreadable to us. - Share a note through a secure link, only when you choose to. Because your encryption is zero-knowledge, only you hold the key. If you forget your password, no one — including us — can recover that content. That is what private means. Whether you keep a private journal, a diary, a second brain, or a knowledge base of ideas, Relnote stays elegant, fast, and genuinely secure. A serious markdown notes app and note organizer that respects what you write. Relnote is free and ad-supported.