When comparing Emacs Org-mode vs Timing for Mac, the Slant community recommends Emacs Org-mode for most people. In the question“What are the best time tracking apps for freelancers?” Emacs Org-mode is ranked 7th while Timing for Mac is ranked 10th. 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 Fully automatic
No start/stop timers, no forgetting to track time.
Pro Easy time analysis after the fact
once a users day is finished they can go through the history of the app to pick and choose what tasks are worth keeping for time tracking of the day. This makes it easy in the sense that there is no manual tracking needed to be done, everything is recorded and then can be filtered down to the users work tasks.
Pro No Subscription Needed
The app works completely offline - no user data leaves your computer and you don't have to pay some monthly fee.
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 Only works on one device, no billing, no syncing and no mobile or web apps
Timing has a pretty limited use for a paid app as it only works on one Mac device. There is no cloud sync to get the schedules synced to another device. There is also no billing built into the app.
Con Mac only
Is only compatible with OSX, so is pretty limiting in that regard.
