Palo Alto Prisma Access vs Zscaler

Palo Alto Prisma Access brings deep next-generation firewall inspection and the broadest SASE feature set to the cloud, making it the natural choice for existing Palo Alto customers who want unified policy management across on-prem and cloud. Zscaler was purpose-built for the cloud and offers a simpler, more scalable architecture for organizations that do not need backwards compatibility with on-prem firewalls. Prisma Access is feature-rich but more complex and expensive; Zscaler is architecturally cleaner but narrower in scope.

Choose Prisma Access if you are an existing Palo Alto Networks customer who wants to extend NGFW policies to the cloud with integrated SD-WAN and the broadest SASE feature set. Choose Zscaler if you want a cloud-native architecture built specifically for inline inspection at scale, with simpler deployment and lower total cost for pure SASE use cases.

Zscaler starts at Custom enterprise pricing / Per-user subscription (per-user annual subscription). Palo Alto Prisma Access starts at Custom enterprise pricing / Per-user or per-Mbps models (per-user or bandwidth-based annual subscription). As always, the sticker price only tells part of the story. Factor in add-ons, implementation costs, and what's actually included at each tier.

It depends on how deeply Palo Alto Prisma Access is embedded in your stack. Most teams run both in parallel for a few weeks before cutting over. Check whether Zscaler supports importing your existing configs or policies. That's usually the biggest time sink.