Plans & Pricing

Professional fault tree analysis.
Simple pricing.

Start free with full IEC 61025 analysis, all gate types, and importance measures. Upgrade to Enterprise for FMEA+RPN, ETA, Monte Carlo, Analytics, and audit-ready compliance reports.

πŸ”¬
Community
Full analysis, forever free
$0/ forever
No credit card. No account. No expiry.
Open FTA Studio β†’

Feature comparison

Full breakdown of what's included in each plan.

Feature Community Enterprise
Core Analysis
Unlimited fault trees & projectsβœ“βœ“
Standard gates β€” AND, OR, XOR, PAND, INHIBITβœ“βœ“
Extended gates β€” VOTE K-of-N (NAND/NOR/NOT β€” roadmap)βœ“βœ“
MOCUS minimal cut set analysisβœ“βœ“
Exact & approximate probability calculationβœ“βœ“
Importance measures β€” Birnbaum, Fussell-Vesely, RAW, RRWβœ“βœ“
Failure rate models β€” Ξ»/ΞΌ steady-state, direct Qβœ“βœ“
ARP4761 per-flight-hour modeβœ“βœ“
Disjoint (mutually exclusive) event groupsβœ“βœ“
Failure frequency wtopβœ“βœ“
Reusable event library (per-project)βœ“βœ“
IEC 61025 completeness checklistβœ“βœ“
SIL probability colour codingβœ“βœ“
Offline operation β€” no account requiredβœ“βœ“
Export & Reports
PNG / SVG / JPEG diagram exportβœ“βœ“
CSV β€” cut sets, node inventoryβœ“βœ“
JSON save & openβœ“βœ“
FMEA CSV export (S/O/D, RPN, sorted by risk)β€”βœ“
PDF safety report (IEC 61025 compliant)β€”βœ“
Signed IEC 61025 JSON export (HMAC verified)β€”βœ“
Advanced Analysis
Full FMEA β€” Severity / Occurrence / Detectability / RPNβ€”βœ“
Risk matrix view (5Γ—5 Severity Γ— Likelihood)β€”βœ“
Event Tree Analysis (ETA) β€” consequence sequencesβ€”βœ“
Failure rate component database (IEC TR 62380 / MIL-HDBK-217F / OREDA)β€”βœ“
Analytics dashboard β€” project-wide risk overviewβ€”βœ“
Monte Carlo simulation (up to 100 000 iterations)β€”βœ“
Sensitivity analysis & what-if tornado chartβ€”βœ“
CCF Ξ²-factor common cause failure modellingβ€”βœ“
Workflow & Compliance
Hazard register with EN 50126 / ISO 26262 traceabilityβ€”βœ“
Approval workflow β€” draft β†’ review β†’ approvedβ€”βœ“
Reviewer sign-off & approval stampsβ€”βœ“
Full immutable audit trail (timestamps, roles)β€”βœ“
Tree integrity verification (cryptographic hash)β€”βœ“
Bulk node editingβ€”βœ“
Named view bookmarks & snapshotsβ€”βœ“

Get Enterprise for your team

Fill in the form and we'll send your licence key within one business day. Volume pricing available for teams of 5 or more.

  • ⚑Licence key by email β€” no installation, works entirely in browser
  • πŸ”’30-day offline grace period β€” works without internet connection
  • 🌿Includes ETA, Full FMEA/RPN, Failure Rate DB, Analytics Dashboard
  • πŸ“‹IEC 61025 Β· IEC 61508 Β· EN 50126 Β· ARP4761 Β· ISO 26262 Β· MIL-STD-882
  • πŸ”„Cancel or renew any time β€” no long-term contracts
  • πŸ’¬Priority email support & roadmap input

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