When comparing Emacs Org-mode vs Task Coach, the Slant community recommends Emacs Org-mode for most people. In the question“What are the best cross-platform task apps?” Emacs Org-mode is ranked 3rd while Task Coach is ranked 22nd. The most important reason people chose Emacs Org-mode is:
This app's flexibility is based on its minimalist approach, giving the user near-infinite freedom.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Ultimate flexibility
This app's flexibility is based on its minimalist approach, giving the user near-infinite freedom.
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 Files are usable anywhere at anytime
Users are not tied to one service provider, program, platform, or database engine.
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 Agenda views
Pro Excellent unofficial Android app (orgzly)
Pro Offline support
Pro Efficient features for deadline organization
Pro Supports plaintext spreadsheets
Pro There are a lot of extensions, for exporting to html, bootstrap, js-reveal and much more
Pro Quickly add rich text
Pro Free and open source
With access to the source code, savvy users can make under-the-hood tweaks to suit their work style.
Pro Unlimited nesting of items and lists
When things grow in complexity, their parts can be turned into discrete task items within a hierarchical structure.
Pro Tracks hours and budget
Task Coach allows you to track how long it actually takes to complete a task and can be used to analyze the resulting impact on billing and budget.
Pro Tracks percent finished
Cons
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 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 Not really cross platform
Although it is possible to get a lot of it working, no all in one, sync included, out of the box solution is available for mobile devices.
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 No updated package for recent linux distros
deb package available to download does not install app
Con Multiple users can access a file over a network, but there’s no web-based interface for straightforward collaboration
A task file may be opened by several instances of Task Coach, either running on the same computer or on different ones (on a network share for instance). When you save, Task Coach will merge your work with whatever has been saved on the disk prior. Conflicts are automatically resolved, usually by you winning the conflict.
This serves two use cases: 1) A single user opening the task file on several computers (work, home, laptop) and 2) several users working on the same task file.
The first case is the most common and the most secure. The second case may be dangerous. Most network disk sharing protocols do not support the kind of file locking that would make this 100% secure. A list of common protocols and their behavior can be found in the Task Coach help file.