productboard - Beautiful and powerful product management.
Task Planner - Standalone cross platform web app for planning projects
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.
JXL for Jira - The power of Jira with the familiarity of spreadsheets
Aha! Business Model Builder - Create the perfect strategy for your product roadmap
Project Plan Notion Template - A project plan is essential for successful strategy development.