When comparing Taskwarrior vs Do It (Tomorrow), the Slant community recommends Taskwarrior for most people. In the question“What are the best cross-platform task apps?” Taskwarrior is ranked 2nd while Do It (Tomorrow) is ranked 61st. The most important reason people chose Taskwarrior is:
The command line interface puts powerful filtering expressions, context, annotations, tags, due dates, reoccurrence, and user-defined-attributes totally in your hands. It’s fast and low friction.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Command line interface
The command line interface puts powerful filtering expressions, context, annotations, tags, due dates, reoccurrence, and user-defined-attributes totally in your hands. It’s fast and low friction.
Pro Extensible
Taskwarrior has many front-ends, services, extensions, hook scripts, and capsules available. Taskwarrior keeps a list of contributed tools on their site.
Pro Lightweight and fast
Taskwarrior is written in the speedy C++ language.
Pro Tasks stored in plain text files locally
Future-proof and easily integrated with version control system. You never lose access to your data.

Pro Sync across devices
When used in conjunction with the Taskserver, it can sync tasks (conflict-free) across your Taskwarrior devices. This includes integration with Mirakel.

Pro Supported internationally
It has UTF8 support and is translated into many languages.
Pro Customizability
Taskworrior allows you to define custom attributes and reports to your needs.
Pro Self-hosted Taskserver
You can be in full control of your data.
Pro Free and without ads
Do It (Tomorrow) is available as a free app on the web, on iOS and on Android – none of which have ads.
Pro Notebook simulation
Do It (Tomorrow) simulates the feeling of writing your to-do list on an actual by hand. You can switch the font style back to the system default font if desired.
Pro Shorter timeframes lead to better productivity
Unlike other to-do list apps that allow users to schedule tasks far into the future, Do It (Tomorrow) allows tasks to be scheduled for today and tomorrow only. This ensures users stay focused on things that need to get done in the short term.
Pro Clean and simple
Do It (Tomorrow) shows only the list of to-do items for today and tomorrow. No labels, tags, or other categories are needed.
Cons
Con Command line interface
A command line interface is a arguably overly verbose, consequently tedious, way to interact with a To Do list.
Con iPad version of Do It (Tomorrow) has a one-time fee
iPad users who want to use the app must pay a one-time fee of $4.99.
Con Limited scheduling options
Because Do It (Tomorrow) limits scheduling options to today and tomorrow, there’s not much use for functions like alerts or recurring events.
