Now you can use the professional open source scrum tool in mobile:
Product management: including products, stories, plans, releases and roadmaps;
Project management: including projects, tasks, teams, builds and burndown charts;
Quality management: including bugs, test cases, test tasks and test results;
Work management: including todo management and personal work management like my task, my bug, my story and my project;
Search feature: powerful search function helps you find the information you need.