Perimeter vs Genasys Protect (Zonehaven)

Verdict

Perimeter and Genasys Protect (Zonehaven) are the two vendors in this category most narrowly focused on the same specific job: pre-planning evacuation zones and publishing real-time, public-facing evacuation status during an incident, with no app download or account required for residents to check their zone. Each lists the other as its closest alternative.

The meaningful difference is company structure and what sits around the core evacuation-zone product. Zonehaven was acquired by Genasys and has since been folded into the Genasys Protect platform, combining the original zone-based evacuation software with Genasys's own multi-channel alerting and outdoor acoustic warning devices — a hardware-plus-software offering. Perimeter remains a software-only platform with three explicit phases: pre-incident planning (Perimeter Plan), real-time incident mapping (Perimeter Map), and post-incident recovery, including automated incident replay specifically built for FEMA reimbursement and after-action review.

Choose Perimeter if

• You want a software-only platform without needing or wanting physical alerting hardware.
• Automated recovery documentation for FEMA reimbursement is a specific requirement.
• You need Esri/GIS integration via KML and GeoJSON exports to fit an existing ArcGIS-based workflow.

Choose Genasys Protect (Zonehaven) if

• You want evacuation software integrated with physical, multi-channel alerting — including acoustic warning devices — from a single vendor.
• Your agency already uses or is evaluating other Genasys alerting infrastructure.
• A free, no-signup public zone-status map for residents is a baseline requirement — both offer this, but confirm current scope directly since Zonehaven's public map is explicitly free while the underlying agency software is quote-only.

The honest caveat

Both are quote-only for the agency-side software, so this comparison cannot rank them on cost. Perimeter reports over 280 public safety agencies across 30+ US counties covering more than 4.5 million residents; Zonehaven/Genasys Protect's deployment record here is described as spanning multiple California and other US counties without an equivalent aggregate figure in its own record, so treat scale claims as vendor-reported and ask each for current, comparable reference customers in your region rather than relying on either figure alone. If acoustic and multi-channel alerting hardware is not a requirement, the choice comes down mostly to which vendor's planning and recovery workflow, and which GIS integration, fits your agency's existing tools.