Trim - Manage and cancel your paid subscriptions
productboard - Beautiful and powerful product management.
Dinero - Dinero is a web based software for accounting, billing and taxes.
ProdPad - ProdPad helps your team gather ideas, surface the best ones and turn them into product specs, and then put it all on a product roadmap.
Bobby - Keep track of your subscriptions
ProductPlan - Cloud-based product roadmap software solution