Asana vs Taskwarrior
When comparing Asana vs Taskwarrior, the Slant community recommends Taskwarrior for most people. In the question“What are the best cross-platform task apps?” Taskwarrior is ranked 2nd while Asana is ranked 12th. 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
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Pros
Pro Powerful team collaboration features
Asana has fantastic mechanisms for dealing with team collaboration. Not only can tasks be assigned to team members, but Asana lets users follow tasks and use hyperlinks to refer to team members within a task.
Pro Free for up to 15 users
Pro Simple workflow
The Asana task workflow within a project is broken down into "Today," "Upcoming," and "Later." The tasks themselves have the status of either done or not done. There is also a subtask feature to group tasks together. Tasks can be assigned to other team members and are stored in the "Inbox" view for processing. This replaces email for some team communication.
Pro CSV export and print
Pro Very polished interface
Teams can have private (only visible to project members) and public (visible to anyone in the team) projects. Each member can also have their own personal projects.
Tasks can be viewed in list and calendar views. It's possible to display only the tasks assigned to the user or tasks organized by project or team. Single tasks can exist in multiple projects. Lists of tasks can be divided into sections and organized in many different ways – tasks that still have to be done, tasks that have been completed, by due date, by assignee, by popularity, etc.
Expanding a task will allow adding things like subtasks, tags, and attachments, as well as comments. Users can also subscribe to a task via RSS from this view. There's a separate view specifically for attachments.
Search lets you find what you’re looking for quickly.
Pro Tagging system allows easily filtering tasks
The tagging system enables project managers to easily filter tasks.
Pro Provides lots of help for getting started
There are many videos, tutorials, and reference documents to help you get up and running.
Pro Supports Kanban and list views
Asana provides a list view and a Kanban view which can be selected if a new project is created.
Pro Well thought out keyboard shortcuts
Keyboard shortcuts all involve the Tab key, so it is unlikely that they will interfere with shortcuts that have already been established.
Pro Integrates with Slack
It's possible to have tasks appear in a Slack channel.

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.
Cons
Con Mobile version lacks calendar
Asana's calendar is present in the web version but is conspicuously missing in the mobile app.
Con Unable to manage multiple workspaces
Each "workspace" or "team" in Asana is strictly isolated. You cannot see your personal tasks versus work tasks or collaborations together, you need to log in to a different profile.
Con No task dependencies in free version
Dependencies is only available only to Teams and Organizations on Asana Premium.
Con Can not use list view and board view for a same project
Asana can only choose one, either a list view or a board view.
Con Strange UX with strange workflow
Similar to task the manager in Todoist or Wunderlist, but not too complex for under four members.
Con UX Design is overly opinionated
The workflow is not very customizable, which forces you to use a flow that may not be your preferred or best option.
Con Command line interface
A command line interface is a arguably overly verbose, consequently tedious, way to interact with a To Do list.
