Zscaler Winter 2015 is priced on an annual, per-user subscription basis, ranging from $1 to $10 per employee per month depending on deployment size, options and modules. The new offering is designed to provide distributed enterprises and mid-market organizations with an economical, easy to deploy, and easy to manage firewall. The firewall also fully integrates with Zscalers platform which offers sandboxing, web security, DLP, content filtering, SSL inspection, malware protection and correlation, reporting and analytics.
Source: https://www.securityweek.com/zscaler-launches-cloud-based-firewall