Agile software development web application

I need to find a web application to use for in-house software development. I initially want to build it by myself but I have googled and found the following and I think better to try it out. My requirements are,

• Free or affordable price.
• Can install locally.
• Simple and easy to use since I need to bring the concept to the team.
• User friendly

The candidate

• Jira fully functional 30-day trial
• Mingle Free 1-year trial for 5 users
• TargetProcessFree 5-users Pack
• tinypm The community edition, limited to 5 users.

I will post about usage soon, keep in touch.