Epsilon3 does not offer a permanent free version, but a free trial is available for evaluation. Epsilon3's Basic paid plan starts at $100 per user per month and covers core procedure creation, execution, basic analytics, and cloud storage with chat and email support. Epsilon3's Pro plan at $200 per user per month adds scheduling, AI-powered procedure importing, workflow automation, requirements management, inventory tracking, advanced analytics, anomaly detection, API integrations, and dedicated technical support. Epsilon3's Enterprise tier, priced via custom quote, further adds custom integrations, advanced implementation services, and optional FedRAMP High deployment for highly regulated environments.