When comparing Emacs Org-mode vs Inkdrop, the Slant community recommends Inkdrop for most people. In the question“What is the best note taking app for Mac?” Inkdrop is ranked 6th while Emacs Org-mode is ranked 16th. The most important reason people chose Inkdrop is:
Support Windows, macOS, Linus and mobile.
Specs
Question Ranking
Pros
Pro Ultimate flexibility
This app's flexibility is based on its minimalist approach, giving the user near-infinite freedom.
Pro Files are usable anywhere at anytime
Users are not tied to one service provider, program, platform, or database engine.
Pro Agenda views
Pro Absolutely free
Emacs with Org-mode is free as in beer and free as in speech – that is, it costs nothing and it’s totally open source.
Pro There are a lot of extensions, for exporting to html, bootstrap, js-reveal and much more.
Pro Supports plaintext spreadsheets
Pro Incredibly extensible
There are many plug-ins for Org-mode, including Org-habits and Org-notify. If Org-mode lacks some piece of functionality, it is very easy to add it.
Pro Excellent unofficial Android app (orgzly)
Pro Quickly add rich text
Pro Efficient features for deadline organization
Pro Cross-platform support
Support Windows, macOS, Linus and mobile.
Pro Extensible
Pro Markdown support
Pro Syntax highlighting, multiple themes out of box
Pro Distraction free mode
Pro Supports Mathematical Equations
Pro Ability to draw Sequence Diagrams
Pro Plugins add extra functionality and themes
Pro Public API
More things could be done via its powerful API support.
Pro Global search and tag feature
Cons
Con Android app isn't very good
There are several user-created apps for Android, but none seem to offer the same level of functionality as other to-do apps.
Con Unintuitive user interface
The key combinations are unintuitive and difficult to remember. This is probably because there are a lot of hidden "modes" depending on where the cursor is. Actions aren't paired with reversing actions like in other todo apps. For example, hitting shift-tab does NOT reverse the effect of hitting tab.
Con By default, a hard-to-read display
The default way of writing an outline or checklist creates a very messy wall of text that's difficult to read with no vertical spacing. You can manually add vertical spacing, but the Org operations don't preserve it. There are pretty-display modes, but you need to remember how to enable them, etc. etc.
Con Only subscription-based
Can not buy it straight up.