Developer Tools
Zscaler
Cloud-delivered zero-trust security platform for internet, SaaS, private-application, workload and branch access.
What it is
Zscaler is a proprietary cloud security platform. Zscaler Internet Access inspects and controls user traffic to internet and SaaS destinations, while Zscaler Private Access brokers identity- and policy-based access to private applications without placing users on the application network. Current platform bundles and standalone products are quote based; entitlements differ by user count, edition, add-ons, App Connectors, application segments, isolation traffic, branch throughput or endpoints and specialized workloads. ZIA and ZPA solve different traffic paths and should not be treated as one universal VPN replacement license.
Zscaler pricing
Zscaler does not publish a plan ladder we could verify. Custom pricing — quote required.
Prices read from the vendor's own pricing page on 2026-08-24. Vendors change plans without notice — check the source before you budget. Price verification log.
Key features
Zscaler Internet Access
Applies secure-web, firewall, threat and data policies to internet and SaaS traffic.
Zscaler Private Access
Connects authorized users to private applications through App Connectors and policy, not general network admission.
Client and branch forwarding
Routes supported endpoint, branch and workload traffic to the appropriate Zscaler service.
Identity and API controls
Uses SAML and administrative APIs for contextual policy and lifecycle automation.
Strengths and trade-offs
What works well
- Direct-to-cloud security: Internet controls can follow users without backhauling every session through a corporate perimeter.
- Application-level private access: ZPA policies can grant access to named applications rather than broad network reach.
- Identity integration: SAML attributes and multiple identity-provider options support contextual user policy.
- Administration APIs: Product APIs support automation for application segments, connectors, policy and tenant resources.
Where it falls short
- No public transactional price: User mix, bundle, geography, traffic and add-ons require a negotiated design and quote.
- Deployment is not agent-only: Traffic forwarding, Client Connector, App Connectors, DNS, identity, certificates and logging need coordinated rollout.
- Entitlements have ceilings: Bundles can cap connectors, segments, isolation traffic or included privileged-access systems.
- Service availability is not application availability: Identity, endpoint, network, connector and target application failures remain outside the cloud service itself.
Who it is for
Large organizations replacing perimeter internet security and broad remote-access VPN patterns with identity-aware cloud controls.
Pick it or skip it
Pick Zscaler if
- Distributed workforces needing consistent internet and SaaS inspection
- Private applications that can be segmented and published through redundant connectors
- Enterprises able to pilot traffic, identity, certificate inspection, logs and business continuity by region
Skip it if
- A small team needs a simple commodity VPN without enterprise policy infrastructure
- Applications require unsupported protocols or broad layer-3 network access not covered by the chosen package
- The project has not budgeted deployment services, add-ons, log pipelines and connector infrastructure
Our verdict
Zscaler can materially reduce broad network trust, but it is an architecture and migration program rather than a drop-in proxy; separate ZIA and ZPA requirements, inventory every entitlement and traffic path, then test identity, inspection, connector loss and emergency access before rollout.
Frequently asked questions
- Does Zscaler have a free plan?
- No free plan is listed on the vendor's pricing page. Zscaler is sold on a quote basis.
- Who is Zscaler best for?
- Large organizations replacing perimeter internet security and broad remote-access VPN patterns with identity-aware cloud controls.
- What are the main drawbacks of Zscaler?
- The trade-offs we noted: No public transactional price: User mix, bundle, geography, traffic and add-ons require a negotiated design and quote.; Deployment is not agent-only: Traffic forwarding, Client Connector, App Connectors, DNS, identity, certificates and logging need coordinated rollout.; Entitlements have ceilings: Bundles can cap connectors, segments, isolation traffic or included privileged-access systems..
- When should you not use Zscaler?
- Skip Zscaler if: A small team needs a simple commodity VPN without enterprise policy infrastructure; Applications require unsupported protocols or broad layer-3 network access not covered by the chosen package; The project has not budgeted deployment services, add-ons, log pipelines and connector infrastructure.
What we checked
- Public APIOffers a documented API you can build against.Yes
- Mobile appHas a native app for iOS or Android, not just a mobile website.Yes
- Open source / self-hostableSource is open and the tool can be run on your own infrastructure.No
- SSO (SAML)Supports SAML single sign-on on at least one plan.Yes
“Not checked” means exactly that — we have not verified it, and we do not guess.
Evidence and freshness
Status: Official sources reviewedReviewed: 2026-08-24
- Zscaler — Pricing and plans ↗
Checked 2026-08-24 · Supports: platform bundle structure, ZIA and ZPA scope distinction, quote route, user and bundle entitlements, App Connector and segment limits, isolation traffic, branch throughput and endpoint sizing, add-on boundaries
- Zscaler Help — ZPA administration ↗
Checked 2026-08-24 · Supports: App Connector and application-segment administration, SAML attributes, API key management, ZPA APIs, rate limits, role-based API access, mobile browser and isolation topics
- Zscaler Help — Understanding the ZPA API ↗
Checked 2026-08-24 · Supports: administrative API scope, application and policy automation, SAML attribute resources, authentication and endpoint model
- Zscaler — Light Users product sheet ↗
Checked 2026-08-24 · Supports: rolling unique-user seat definition, ZIA and ZPA light-user traffic allowances, 10 percent exceedance workflow, additional seat traffic or upgrade remedies, 90-day compliance period
- Zscaler — Professional services catalog ↗
Checked 2026-08-24 · Supports: separate deployment-service credits, ZIA and ZPA quick-start scopes, 2500-user boundary, package duration and staffing, out-of-scope customization warning
Limit: Official Zscaler pricing, ZPA administration/API, legal entitlement and professional-services sources were reviewed; ToolCompare did not obtain a quote or contract, provision a tenant, deploy Client or App Connectors, test ZIA/ZPA/mobile/APIs/SSO/SCIM/inspection/isolation/logging, measure latency or availability, exceed traffic, verify every region, simulate connector or identity failure, validate emergency access or contact support. Packages, limits and product names can change.
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