Fairly basic open-source app that is local first, fast, and supports Markdown including tables, folders, and 4 themes. A key feature is synchronization with Joplin Cloud.


Welcome to episode #105 in the ongoing journey to find the best Android note-taking app out there.

It is a very sad time with the devastating earthquakes in Afghanistan and the Israel-Hamas war. My thoughts are with all of the innocent people and their families who have and continue to be impacted by these tragedies.

Here in Toronto, winter is fast approaching and the leaves started falling. My wife and I have migrated off the front porch inside and I've been doing a lot of extra hours for work so this hobby slowed down a bit. I'll also be taking some training in Design Thinking from Ideo which I'm very excited about so the next reviews will be delayed.

This week I tried out Ruslin, created by DianQK, a Developer based in China. I couldn't find much more about him.

Ruslin is a very new Open-Source app created in Jan 2023 which can be found on F-Droid or Google Play. It's local first, fast, supports Markdown including tables, and has folders and 4 themes.

That said it lacks so many fundamental features that I need in a note-taking app, I can't recommend it beyond a simple and fast Markdown editor at this point.

An interesting aspect is that Ruslin supports synchronization with Joplin so you could subscribe to Joplin Cloud for about CAD $5 per month or set up your own Joplin Server.

Read on for the ugly, the bad, the good, the great, and the (couple of) awesome aspects of Ruslin.


a cross-platform note-taking application that can be synchronized using Joplin Server.


  • Score: 4/10
  • Device: Samsung Galaxy S23 Ultra
  • Version: 0.1.1
  • Google Play | f-droid
  • Mastodon | GitHub
  • Released: Jan 2, 2023
  • Last updated: May 2, 2023
  • Location: Beijing, China


  • No end-to-end (E2E) encryption
  • No import or export
  • No backup and restore
  • No undo or redo
  • No sharing
  • No attaching files other than images
  • No audio recording
  • No tags
  • No filtering of notes
  • No sorting of notes
  • No images in the note list
  • No linking of notes
  • No trash
  • Not WYSIWYG (need to use Preview)


  • Double-click text doesn't select text
  • The first time I selected preview, it was blank. Go back and
  • Click when in preview doesn't switch to edit mode
  • In preview mode, the H1 is not shown


  • Text formatting: bolditalics, strike-through
  • Code and code blocks
  • Bullet list
  • Numbered list
  • 6 Heading levels
  • Hyperlink
  • Dark mode
  • Inline images
  • Inline checklists
  • Folders
  • Search across notes
  • Horizontal line
  • Quote and blockquote
  • Formatting toolbar


  • Markdown support
  • Local first
  • Fast
  • 4 themes



Ruslin is a good start and I love that the Developer is leveraging an Open-Source model to develop it. That said, it's not staying on my device until it has more functionality. I wish them luck and hope they continue developing it.

Thanks for continuing to subscribe to the newsletter, stay safe, and have a good note-taking week ahead.