Pay for understanding,
not dashboards.
TCR is licensed based on how deeply you inspect and control time.
The core runtime is free. Advanced inspection requires a license.
Free
$0_ Observe
“Can I see what’s happening?”
- › Core runtime
- › Timeline recording
- › Undo / redo
- › Studio (read-only)
- › Local-only usage
- › Bounded history window
- × No causality graph
- × No forks / what-if
- × No exports
Target First-time users, Debugging basic async flows
Pro
_ Understand
“Why did this happen?”
$29 / dev / month
- › Causality graph
- › Supersede / invalidate inspection
- › Fork & what-if exploration
- › Timeline comparison
- › .tcr import/export (local)
- › Offline replay
Target Professional developers, Teams debugging complex async UI
Advanced
_ Prove
“Can I trust and prove this?”
$79 / dev / month
- › Deterministic replay guarantees
- › Proof exports (checksums)
- › Advanced DSL queries
- › Large / long-lived timelines
- › Forensic-grade inspection
Target Fintech, Compliance-heavy, Incident forensics
Enterprise
_ Control
“This is infrastructure.”
Custom annual
- › Offline / air-gapped licensing
- › Organization-wide licenses
- › Internal redistribution
- › Long-term support (LTS)
- › Custom storage adapters
- › Legal / compliance alignment
Target Large organizations
Feature Matrix
| Capability | Free | Pro | Advanced |
|---|---|---|---|
| Core runtime | ✓ | ✓ | ✓ |
| Timeline / undo / redo | ✓ | ✓ | ✓ |
| Studio (read-only) | ✓ | ✓ | ✓ |
| Causality graph | — | ✓ | ✓ |
| Supersede / invalidate chains | — | ✓ | ✓ |
| Fork / what-if | — | ✓ | ✓ |
| Timeline comparison | — | ✓ | ✓ |
| .tcr import/export | — | ✓ | ✓ |
| Deterministic replay guarantees | — | — | ✓ |
| Proof / fingerprint exports | — | — | ✓ |
| Advanced DSL queries | — | — | ✓ |
Why use a license?
Feature gating is not artificial. Advanced features increase memory pressure, require stronger determinism guarantees, and have legal forensic implications. Licensing reflects operational responsibility, not just UI access.