When comparing Emacs Org-mode vs To Round, the Slant community recommends Emacs Org-mode for most people. In the question“What is the best cross-platform to-do list app?” Emacs Org-mode is ranked 9th while To Round is ranked 47th. The most important reason people chose Emacs Org-mode is:
Users are not tied to one service provider, program, platform, or database engine.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Files are usable anywhere at anytime
Users are not tied to one service provider, program, platform, or database engine.

Pro Ultimate flexibility
This app's flexibility is based on its minimalist approach, giving the user near-infinite freedom.
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 Supports plaintext spreadsheets
Pro There are a lot of extensions, for exporting to html, bootstrap, js-reveal and much more.

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 Easy to use
The interface is clear and smooth.
Pro Unique and interesting design
The bubble design format is simple to understand visually and is effective in keeping track of ones to-do list.
Pro Gamification of tasks
To Round turns task-completion into a game-like experience, which is good for those who are motivated by this type of positive feedback. It can be a little distracting or annoying for users who want an even simpler process.
Pro Convenient widget
The app features an Android widget that you can place on your homescreen to view your current tasks even more quickly.
Pro Good reminder feature
You can enable push notifications that make sure you never forget a single task.
Pro Visualisation of tasks
The app uses bubbles to represent tasks. The bigger the bubble, the more important the task is.
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 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 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 No web-based access
The website demonstrates how the app works, but doesn't allow you to access any of your own to-dos.
Con No desktop app
So far no apps for desktops have been launched.