GRFICS vs LetsDefend Mobile: 2026 Comparison
GRFICS is a free cyber range training tool. LetsDefend Mobile is a commercial cyber range training tool by LetsDefend. Compare features, ratings, integrations, and community reviews side by side to find the best cyber range training fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Security teams training ICS defenders on a budget should use GRFICS because it's free and lets operators practice real attack chains in a visual 3D environment instead of reading documentation or staring at command lines. The framework runs on Unity and requires no licensing, making it practical for manufacturing facilities and utilities that can't justify expensive simulators for tabletop exercises. Skip this if your team needs NIST Govern function support or compliance reporting; GRFICS is pure hands-on practice, not an audit tool.
