Jira may be extremely sluggish and require a large amount of memory on the client side.
Incoming Feedback by Hotjar - Instant visual feedback for your website or app!
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.
Customer Feedback Portal - Ask customers what you should build next
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.
Feedback Fish - Collect feedback & make your customers happy.
Basecamp - A simple and elegant project management system.