Free vs Pro
Zentro has two tiers: Free (forever) and Pro (subscription). During Early Access, all Pro features are available at no cost.
Pro Early Access is free. No credit card required. How to activate →
Core Philosophy
Safety is not a Pro gate — it's built into every tier. Free includes safety awareness so every developer builds the right habits from day one. Pro raises the enforcement level and removes limits.
Feature Comparison
| Feature | Free | Pro |
|---|---|---|
| Editor & IDE | ||
| SQL editor (multi-tab, Monaco) | ✅ | ✅ |
| SQL formatter | ✅ | ✅ |
| Saved scripts & templates | ✅ | ✅ |
| Keyboard shortcuts | ✅ | ✅ |
| Command palette | ✅ | ✅ |
| Focus mode | ✅ | ✅ |
| Schema & Database | ||
| Schema explorer | ✅ | ✅ |
| ERD visualization | ✅ | ✅ |
| Schema diff (compare two states) | ✅ | ✅ |
| Results | ||
| Data grid (virtualized) | ✅ | ✅ |
| Result filters (WHERE & ORDER) | ✅ | ✅ |
| Row detail sidebar | ✅ | ✅ |
| Result comparison (diff) | ✅ | ✅ |
| Inline result editing | ✅ | ✅ |
| Result export (CSV) | ✅ | ✅ |
| Projects | ||
| Max projects | 5 | Unlimited |
| Environment binding (dev / staging / prod) | ✅ | ✅ |
| DBeaver import wizard | ✅ | ✅ |
| Write Safety | ||
| Environment badge (Dev / Staging / Prod always visible) | ✅ | ✅ |
| Warning on dangerous production queries | ✅ Basic warning | ✅ Full risk classification, blocks until confirmed |
| Production environment overlay | — | ✅ Persistent, non-dismissable, with timed write unlock |
| Affected rows preview | — | ✅ (PostgreSQL only) |
| Sandbox preview (wrap in transaction) | — | ✅ (PostgreSQL only) |
| Type-to-confirm on destructive queries | — | ✅ |
| Cooldown timer between operations | — | ✅ |
| Reason field (audit context) | — | ✅ |
| Write safety policy profiles | — | ✅ |
| Append-only audit log | — | ✅ |
| Schema History | ||
| Git-based schema snapshots | — | ✅ |
| Schema commit timeline & diffs | — | ✅ |
| Schema rollback DDL generation | — | ✅ (PostgreSQL only) |
| Migration DDL generation | — | ✅ |
| Transaction assist | — | ✅ |
| Security | ||
| App lock with PIN + idle timeout | — | ✅ |
| OS credential fallback | — | ✅ (Windows only) |
| PII detection & column blur | — | ✅ |
| Secret vault | — | ✅ |
| Analytics | ||
| Query statistics (P95, error rate, trend) | — | ✅ |
| Script Source Control | ||
| Git tracking for saved scripts | — | ✅ |
| Script commit history & diffs | — | ✅ |
| Restore script from commit | — | ✅ |
Offline Grace Period
| Plan | Grace period after last license check |
|---|---|
| Free | 24 hours |
| Pro | 7 days |
After the grace period, Zentro reverts to Free behavior until the license is refreshed with an internet connection.
Pricing
Pricing details and the current Early Access offer are on the Zentro website (opens in a new tab).