Hi there! Just launched my last side project at https://drivemydev.com.
The problem: as developers/product managers we all have limited resources (money/time) on product development and we don't really know which feature we should implement next to meet the needs of our users/customers. Thus we oft end to implement something we think it's important but no one really needs or uses.
The solution: built around the concept of Relative Importance Testing, DriveMyDev allows you to collect, through a unobtrusive and easy to install HTML widget, trade-off customers feedbacks, thus focus to implement what really matters for most of your users.
Feedbacks appreciated ;-)