Pricing
One plan. All the proof.
Every error explanation is free forever. Pro unlocks the lab evidence behind them — the exact SQL, the raw output, and the concurrency proofs we captured while reproducing each failure.
Free
Everything you need to understand the error.
$0/forever
- ✓All 50 PostgreSQL error explanations
- ✓Cause, fix, and prevention for every SQLSTATE
- ✓SQLSTATE reference index, grouped by class
- ✓Glossary + GUC reference
- ✓Official manual citation on every page
Pro
The full lab transcript behind every error.
$199/year
≈ $16.58/mo · save $100 vs monthly
- ✓Everything in Free
- ✓Full Docker-lab transcripts — the exact SQL that triggers each error
- ✓Raw psql output, verbatim, for every reproduction
- ✓Live lock-graph & concurrency proofs (pg_locks, blocking PIDs)
- ✓Per-error SQLSTATE audit: severity, triggers, and monitored fields
- ✓Runbook deep-dives + new reproductions as they ship
Cancel anytime from your billing portal.
Questions
What exactly is behind the Pro paywall?
The full lab evidence. Free explains every error — cause, fix, prevention. Pro adds the reproducible transcript: the exact SQL sessions, the raw psql output we captured, the pg_locks / blocking-PID snapshots, and the SQLSTATE audit. Nothing is fabricated; it's the real terminal record.
Can I cancel anytime?
Yes. Manage or cancel from your account's billing portal. Monthly cancels at the end of the period; annual runs until its renewal date.
Is the free tier a trial?
No. Free is permanently free and covers all 50 errors. Pro is for engineers who want the underlying lab proof and runbooks.