Nextcloud Notes v3.2.5 scores 7/10
            Nextcloud Notes is a fairly complete Open Source app with text formatting, inline checklists, hyperlinks, and tables using Markdown. It requires a Nextcloud server to work and is a little sluggish to start up. Best part is it's free! Subscribe to read the complete review.
About
- Developer: Nextcloud | Location: Germany
 - Android: Download | Github | Known issues | Developers: Tobias Kaminsky | Álvaro Brey
 - Web App: Github | Known issues | Help | Developers: Kristof Hamann, Jan C Borchardt, Hendrik Leppelsack, Lukas Reschke
 - Apple iOS App: App Store
 


Ugly
- No attaching images
 - No inline audio recording
 - No editing without seeing markdown
 - Deleted notes launches Web UI
 - Requires a Nextcloud server
 - Sluggish to start up
 - If you start a search while it's still loading the search field clears and you have to type the search criteria again
 
Bad
- No text highlighting
 - No export to PDF
 - Need to learn Markdown
 - No share as formatted text
 - Searching for a word messed up the view of the note (only happened once)
 - Notes are not encrypted at rest (I don't think many of these apps do that and it's a tradeoff to having text files you can edit in any app)
 
Good
- Documentation
 - Sort note list by alphabetical or date (modified?)
 - Stores all contents as 
.mdor.txtfiles (see Bad re. encryption) - Undo and redo
 - Formatting menu is an overlay when you select text
 

- Categories
 - Dark theme
 - Markdown support
 - 3 widgets: add note (brings up app with new note screen), folder (scroll-able list of notes), specific note (view note from home screen)
 - Favorite a note. Can favorite a note right from the note list/grid
 - Inline checklist [ ] [x]
 - Share as Markdown
 - Pin to home screen
 - Text formatting: Bold, italic, 
Strikethrough,code - Hyperlinks NextCloud Notes
 - Tightly integrated with Nextcloud server
 - Search in note with nice search up and down buttons
 - Web UI and app sync takes about 7 seconds
 
Great
- Web UI as well
 - Has an API for cloud. Apps that use Notes API: Android, iOS, CloudNotes, OS X, Sailfish OS
 
Awesome
- Open Source
 - Tables! but you need to learn the Markdown
 

- Google Keep exporter
 - Synchronizes with Nextcloud using WebDAV