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Cybersecurity · head to head

ProtonVPN vs Zscaler Internet Access

ProtonVPN logo

ProtonVPN

Cybersecurity

High-speed Swiss VPN that safeguards your privacy

From
Free
Rated
-
Full reviewWebsite
Zscaler Internet Access logo

Zscaler Internet Access

Cybersecurity

Secure cloud-native internet and SaaS access

From
$100/year
Rated
-
Full reviewWebsite

The short version

  • Only ProtonVPN has a free tier, so it costs nothing to try first.
  • Each has a real cost: ProtonVPN free plan limited to one device at a time; Zscaler Internet Access the pricing page names two base tiers, Essentials Platform and Zscaler Platform, plus modular add ons including three Digital Experience Monitoring tiers, but publishes no dollar figures anywhere and routes buyers to a demo request for cost
  • They diverge on capability: ProtonVPN covers No-logs policy, Zscaler Internet Access covers Secure web gateway.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ProtonVPN and Zscaler Internet Access actually diverge.

Attributes where ProtonVPN and Zscaler Internet Access differ
AttributeProtonVPNZscaler Internet Access
Starting priceFree$100/year
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsWindows, macOS, Linux, iOS, AndroidWeb, Desktop, Mobile
Founded20142007

Identical on both: user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ProtonVPN

  • No-logs policy
  • Secure Core
  • Kill Switch
  • DNS leak protection
  • Tor over VPN
  • Split tunneling
  • NetShield ad-blocker
  • VPN Accelerator

Only in Zscaler Internet Access

  • Secure web gateway
  • Cloud firewall
  • URL filtering
  • Advanced threat protection
  • Data loss prevention
  • Cloud sandbox
  • Browser isolation
  • CASB

Both cover

  • Cloud deployment

What people use each for

The jobs each tool is most often brought in to do.

ProtonVPN

  • Privacy-focused browsing without subscription costnot Zscaler Internet Access
  • Multi-device protection with Plus plan supporting 10 devicesnot Zscaler Internet Access
  • Integrated access to Proton email and cloud services via Unlimited plannot Zscaler Internet Access

Zscaler Internet Access

  • Cloud Securitynot ProtonVPN
  • Zero Trustnot ProtonVPN
  • Web Securitynot ProtonVPN

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ProtonVPN

  • Free plan limited to one device at a time
  • Free plan restricted to 10 countries with random selection
  • Pricing amounts not clearly published; shown as variable

Zscaler Internet Access

  • The pricing page names two base tiers, Essentials Platform and Zscaler Platform, plus modular add ons including three Digital Experience Monitoring tiers, but publishes no dollar figures anywhere and routes buyers to a demo request for cost

Pricing, plan by plan

ProtonVPN

Free

No published plan breakdown. See the ProtonVPN review.

Zscaler Internet Access

$100/year
  • ZIA Business$100/year
    • Web security
    • URL filtering
    • Cloud firewall
  • ZIA Transformation$200/year
    • All Business features
    • Advanced threat protection
    • Cloud sandbox
  • ZIA Unlimited$350/year
    • All Transformation features
    • Cloud browser isolation
    • CASB

Which should you pick?

Choose ProtonVPN if

  • You need no-logs policy.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, iOS, Android.
  • You also want secure core.
ProtonVPN review

Choose Zscaler Internet Access if

  • You need secure web gateway.
  • You work on Web, Desktop, Mobile.
  • You also want cloud firewall.
Zscaler Internet Access review

Questions people ask

Is ProtonVPN or Zscaler Internet Access better?
Neither clearly leads. ProtonVPN starts at Free and Zscaler Internet Access at $100/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ProtonVPN or Zscaler Internet Access?
ProtonVPN has a free tier; the other does not. Paid plans start at Free for ProtonVPN and $100/year for Zscaler Internet Access.
Does ProtonVPN or Zscaler Internet Access run on more platforms?
ProtonVPN runs on Windows, macOS, Linux, iOS, Android. Zscaler Internet Access runs on Web, Desktop, Mobile.
Can I use ProtonVPN for free?
Yes. ProtonVPN has a free tier, so you can try it without paying. Zscaler Internet Access starts at $100/year.
What is ProtonVPN best used for?
ProtonVPN is most often used for privacy-focused browsing without subscription cost, multi-device protection with plus plan supporting 10 devices, integrated access to proton email and cloud services via unlimited plan. Of those, privacy-focused browsing without subscription cost and multi-device protection with plus plan supporting 10 devices are not what Zscaler Internet Access is typically brought in for.
What can ProtonVPN do that Zscaler Internet Access cannot?
ProtonVPN covers No-logs policy, Secure Core, Kill Switch, DNS leak protection. Zscaler Internet Access covers Secure web gateway, Cloud firewall, URL filtering, Advanced threat protection. Both handle Cloud deployment.

Answered from the vendors’ own pages

Zscaler Internet Access: How many pricing tiers does Zscaler Internet Access offer?

Zscaler Internet Access offers two main platform bundles: the Essentials Platform (entry-level) and the Zscaler Platform (comprehensive). Specific pricing is not published online.

Source
Zscaler Internet Access: Are there optional add-on modules available?

Yes. Zscaler offers extensive optional capabilities in five categories including Inline Cyberthreat Protection, Private Access enhancements, Data Security, Security Operations, and Zero Trust Branch.

Source
Zscaler Internet Access: How is Zscaler Zero Trust Branch priced?

Zero Trust Branch is sized by encrypted throughput (200 Mbps to 10 Gbps) or endpoint count (200 to 5,000 endpoints), with pricing varying by configuration.

Source
Zscaler Internet Access: How do I get Zscaler pricing?

Zscaler does not publish pricing online. You must request a demo or contact their sales team to receive a pricing quote.

Source
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