Redmine

Redmine is a project manager that can be configured easily and quickly, in addition to allowing it to be customized for communication with external applications. It allows to create workflows according to the business model. You can manage the resources used in the execution of a project and evaluate the costs in a friendly way

Redmine can be complicated to use for people with little technological knowledge as well as project management. This results in the investment in the training of all personnel involved in the use of the application. Being customizable and allowing communication with external applications can make it unstable by not complying with the workflow

One of the things I like the most about Redmine is the customization it has. If you have an on-premise service you could just create your own theme for the company, create your own "ticket" categories and so on. It's very flexible in that way so if you manage it correctly and have a great maintenance probably it's worth for a few bucks.

It's horrible at issue management, even tho you can customize the UX it's not intuitive, it has a big community but not that big compared with their competitors and most of the plugins are hard to implement or incomplete since are obsolete. Also if you choose the on-premise solution like I said you will have to make a monthly maintenance or in large companies it does not escalate properly and you will have to improve your servers expending more money or even extracting the database to another external service.

I used this software in two companies that had it customized to their needs. So the possibility to customize features to fit the company workflow seems to be properly working. We used the time tracking feature to know which part of a project was taking more time than planned. The ticket's features are very useful for teamwork as you can see who worked on what task and when. You can also easily add documents attached to the task, and even write some Wiki for projects that may need it.

Redmine can be quite complicated to use, for one not used to software like this. For example we used to open parts of the software for clients when we were doing fine tuning on applications and websites, and often the client needed a small training to be able to create ticket and answer questions on the ticket.

*Management of multiple projects
*Customization of projects
*Flexible task tracking system
*Integration in code repositories
*Use of calendar and Gantt chart

Redmine is a very powerful and mature project manager, despite its "little" development time, it is also inspired by trac, so we are facing a very flexible tool in itself, and quite stable. During its use, it is difficult or easy to obtain shortcomings, always depending on what each user is looking for, so you have to be very clear about what you are looking for in this type of tool.