Think in interconnected problems
Model reality as a living graph of problems, conjectures, criticisms, and decisions. Nothing gets lost in a doc or chat thread again.
Collaborative Knowledge OS
Progress is inevitable when every idea meets its best critic.
Popper is building the operating system for unstoppable progress—where humans and AI co-create, challenge, and refine ideas in real time. Join the founding waitlist to be the first inside.
Why Popper
Designing software around the way knowledge actually grows.
Popper unifies the tools you already love into one epistemic workspace—so teams can see the critical path, invite rigorous feedback, and ship with confidence.
AI that argues with you
Dedicated conjecture, criticism, and review agents help you explore possibilities—and challenge them before reality does.
Decisions with a memory
Capture the criticism behind every choice. When priorities change, rewind the logic instantly and take the next best step.
Join the founding cohort
Be first to experience Popper.
Early members help shape the product, join private critique sessions, and get lifetime recognition inside the knowledge graph.
- Private walkthroughs with the Popper team.
- Access to experimental AI criticism agents.
- Your problems seeded as launch case studies.