When comparing Emacs Org-mode vs Doit.im, 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 4th while Doit.im is ranked 44th. The most important reason people chose Emacs Org-mode is:
Users are not tied to one service provider, program, platform, or database engine.
Specs
Question 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 There are a lot of extensions, for exporting to html, bootstrap, js-reveal and much more.
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 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 Supports plaintext spreadsheets
Pro Efficient features for deadline organization
Pro Quickly add rich text
Pro Excellent unofficial Android app (orgzly)
Pro Quick add from notifications
Pro Low cost
Subscription value is generally lower than other platforms.
Pro Daily review which allows for did-take VS should-take time comparison
A built-in daily and weekly review function that lets you compare the estimated time for tasks against the actual time they took, as well as productivity for the day/week.
Pro Free apps for Android, iOS, Web.
Pro Clean, simple layout
The apps borrows some design elements from Material Design-type design, which uses a slide-out menu. Everything is laid out in an easy-to-find manner.
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 Nonexport and support desk say they will never include it (your data is theirs now)
Con Support non existing
Con Offline sometimes
Con Subscription based
While not expensive, it does cost money to get it for Mac or Windows (although you can view it in the browser for free). The subscription also adds automatic cloud sync, sync with Google calendar, adding tasks via email, manual sort, attaching Evernote into tasks, and more.
The subscription costs $2/month, or $20/year which is very reasonable
Con Rarely updated
Con Sometimes it doesn't see your active subscription
Con Not very customizable
There is no way for you to create your own "perspective".