When comparing TeamWork.com vs Pivotal Tracker, the Slant community recommends TeamWork.com for most people. In the question“What are the best project management tools?” TeamWork.com is ranked 6th while Pivotal Tracker is ranked 20th. The most important reason people chose TeamWork.com is:
Tasks are grouped in task lists and can have subtasks. Each task list can be assigned to a particular set of users, aligned with a milestone and have notes. Each task in the task list can have a description, a start and a due date, attachments, priority, manually set progress, followers, dependencies, be assigned to a particular set of users and set to repeat. Each subtask has the same configurable properties except instead of the ability to assign people, subtasks can be commented on.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Offers lots of granularity in task management
Tasks are grouped in task lists and can have subtasks. Each task list can be assigned to a particular set of users, aligned with a milestone and have notes. Each task in the task list can have a description, a start and a due date, attachments, priority, manually set progress, followers, dependencies, be assigned to a particular set of users and set to repeat. Each subtask has the same configurable properties except instead of the ability to assign people, subtasks can be commented on.
Pro Each project has only the required functionality
It's possible to limit projects only to the necessary features so that unnecessary functionality doesn't get in the way and clutter up the interface.
Pro Good assortment of features
Gantt charts, calendar and an easy overview of huge amount tasks.
Pro Flexible
While not perfect kanban, Pivotal is somewhat flexible in that you can mark sections of stories. So rather than (or in addition to) a normal sprint, you can put a marker in to define all cards above that point as part of something, for example a release. Further, you can override the auto tracker and define how many points in a sprint. So there is some degree of flexibility which sometimes you don’t find in “purist” agile or scrum tools.
Pro Great software to use in conjunction with a disciplined agile/scrum development philosophy
Pivotal Tracker has a Kanban feel to it, but takes a more opinionated “Agile” approach to feature management: It encourages items in the flow to be user stories with effort points associated to them to allow Pivotal to calculate your team’s velocity.
If you agree with the workflow, Pivotal offers a ton of functionality not provided by more generic tools like Trello. You can see your team’s velocity over time, organic smaller Stories into “Epics” (huge features) etc.
Pro Stories can contain media files
Easy to create features/bugs/chores with embedded files (screenshots, docs, videos).
Cons
Con Provides too much detail for small projects
Amount of granularity for tasks can be overwhelming for small projects or teams.

Con No Kanban-board
To get a good overview often Kanban boards are used. You can somehow imitate a board, but it is not comparable to a real Kanban-board.
Con Limited Work Flow & Process
Few story states. If your process involves some sort of QA and sign off, forget it - you get started, deliver, accept/reject, and finished. No way to customize this to your process. Sad miss for an easy fix/configuration.
Con Non-Editable Default Templates
Templates for defining stories and bugs save time. Pivotal has a default for story and bug. However you can’t edit these. So when you go to add your own, the titles can be confusing to users. Maybe title like “Our User Story” and “Our Bug”? Users will see all templates in the drop down and it’s confusing, so you end up with peope using the wrong templates which adds to process problems.
Con No Saved & Shared Views
Everything is in a column. Aside from destroying Kanban, it also gets confusing. The real downside here is that there’s no way to save a set of columns and pin for others to quickly see. Everyone on the team is usually looking at a completely different set of work. This is literally the definition of not being on the same page.

Con Not usable for multiple projects
If you want / need to have an overview of all the tasks going on over different projects and if you have these organized in different projects, there is no way to get an overview beside reporting. Just take a look at the screenshot and you see what you can expect.
