Scrumbler is described as 'Redmine-Scrumbler - Easy to use plugin for Redmine. It allows users to use the Scrum/Agile process in projects. Scrumbler have interactive dashboard with the ability to configure for each sprint. Plugin adds Scrum Points field in every issue in project' and is an app in the Development category. There are four alternatives to Scrumbler for a variety of platforms, including Online / Web-based, SaaS, Windows, iPhone and Linux. The best alternative is Pivotal Tracker. It's not free, so if you're looking for a free alternative, you could try VivifyScrum or ERPAL.
Tracker is a story-based project planning tool from Pivotal Labs that allows teams to collaborate and react to real-world changes instantly. Its based on agile software methods, but can be used on a wide range of projects.
For teams that deliver. Handle all projects in one place. Easy to use, intuitive, single page tool for agile project management. Scrum and Kanban compatible. Feature-rich created to make work easier and more efficient.
ERPAL is a comprehensive ERP system for small and medium-sized agencies and software houses. ERPAL maps processes for those businesses professionally, clearly and in an integrated fashion, from request to invoicing.