Jira may be extremely sluggish and require a large amount of memory on the client side.
OctoPerf - OctoPerf is a SaaS load testing solution, based on JMeter.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
WebLOAD - WebLOAD - The most flexible and cost effective software for enterprise load, stress and performance testing, integrated with DevOps processes. Click for details
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
StresStimulus - Load testing tool for websites and mobile that works with hard-to-test applications.
Basecamp - A simple and elegant project management system.