FYEO Enterprise Threat Model vs SeaSponge: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
FYEO Enterprise Threat Model is a commercial threat modeling tool by FYEO. SeaSponge is a free threat modeling tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat modeling 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:
Mid-market and enterprise security teams with fragmented risk conversations across business units will see the most value in FYEO Enterprise Threat Model; it forces structured asset cataloging and threat scoping that actually sticks, rather than letting risk assessments languish in spreadsheets. The service covers all four NIST GV and ID risk management functions, meaning stakeholders get aligned on what matters before you're halfway through remediation. Skip this if your organization has already mapped critical assets and runs mature threat modeling in-house; FYEO is built for teams starting from scattered baselines, not optimizing established processes.
Teams building threat models for the first time or teaching threat modeling to developers should start with SeaSponge; its web-based interface and visual-first design eliminate the friction that kills adoption of desktop tools or spreadsheet-based approaches. The free pricing and 281 GitHub stars signal active maintenance and community use, rare for threat modeling tools that usually languish after launch. Skip this if your team needs deep integration with your existing security tools or collaborative features at enterprise scale; SeaSponge prioritizes simplicity over extensibility.
