What are some alternatives?
productboard - Beautiful and powerful product management.
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.
Aha - Aha! is the new way to create visual product roadmaps. Web-based product management tools and roadmapping software for agile product managers.
Arbor - Easily manage product development
Roadmunk - Create beautiful product roadmaps quickly. Drag & Drop functionality. Export your roadmaps into formats such as: PPT, PNG & URL. Start for free today.
Blossom - The ideal Collaboration and Organization Tool for Startups that ship early & often