Free plan available. hark pro² at $20/month with 2× more usage. hark pro³ at $100/month with 10× more usage. All features available in all plans; upgrading increases usage capacity.
Know is free with no seats or trial clock. Enforce and Prove is a subscription priced on the agent work you put under control, not per seat. Contact for subscription pricing details.
Key features
Persistent memory to tailor responses based on shared context
Computer use agent for browsing, research, and web tasks
End-to-end encryption for data security
Action Buttons for prioritized task completion
Email management and sorting
Flight booking and travel planning
Food ordering integration
Appointment booking and healthcare search
Expense auditing and savings recommendations
Monitor, warn or block agent actions
Policy drafting from observed agent activity
Audit trail for every decision
One-command installation
Local policy enforcement without external calls
What makes it different
Operates its own secure computer with full browser for independent task execution
End-to-end encryption vault for sensitive data protection
User approval required before performing sensitive actions
All features available across free and paid tiers
Drafts policies from actual agent behavior before anything is enforced
Deterministic, intent-based decisions instead of authorization checks
No OAuth into AI providers or agent changes required
PII and credentials scrubbed before leaving the machine