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Cybersecurity · head to head

ProtonVPN vs Unleash

ProtonVPN logo

ProtonVPN

Cybersecurity

High-speed Swiss VPN that safeguards your privacy

From
Free
Rated
-
Full reviewWebsite
Unleash logo

Unleash

Software Development

Open-source feature flag and experimentation service

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ProtonVPN free plan limited to one device at a time; Unleash the Pay-As-You-Go plan is priced per seat, which can get costly for larger teams.
  • They diverge on capability: ProtonVPN covers No-logs policy, Unleash covers Feature flags.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ProtonVPN and Unleash actually diverge.

Attributes where ProtonVPN and Unleash differ
AttributeProtonVPNUnleash
PlatformsWindows, macOS, Linux, iOS, Androidweb, api, linux
CategoryCybersecuritySoftware Development
Founded2014Unknown

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated).

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 Unleash

  • Feature flags
  • A/B/n testing
  • Custom targeting
  • SDKs
  • SSO
  • Audit logs

What people use each for

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

ProtonVPN

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

Unleash

  • Gradual and progressive feature rolloutsnot ProtonVPN
  • Running A/B/n experiments tied to flagsnot ProtonVPN
  • Self-hosting feature management for compliance needsnot ProtonVPN
  • Enterprise SSO-controlled feature flag governancenot 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

Unleash

  • The Pay-As-You-Go plan is priced per seat, which can get costly for larger teams.
  • Self-hosted Enterprise requires a minimum of 5 seats and an annual contract.
  • Additional API traffic beyond the included quota is billed per million requests.
  • Advanced SLAs and dedicated customer success are reserved for the custom Enterprise tier.

Pricing, plan by plan

ProtonVPN

Free

No published plan breakdown. See the ProtonVPN review.

Unleash

Free
  • Pay-As-You-Go$75/month
    • Cloud-hosted
    • 53M API requests/month included
    • Unlimited feature flags, projects and environments
  • Custom Enterprise$undefined/mo
    • Cloud, self-hosted or hybrid
    • Premium support options
    • 99.99% uptime SLA

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 Unleash if

  • You need feature flags.
  • You want to start without paying.
  • You work on web, api, linux.
  • You also want a/b/n testing.
Unleash review

Questions people ask

Is ProtonVPN or Unleash better?
Neither clearly leads. ProtonVPN starts at Free and Unleash at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ProtonVPN or Unleash?
ProtonVPN starts at Free and Unleash at Free.
Does ProtonVPN or Unleash run on more platforms?
ProtonVPN runs on Windows, macOS, Linux, iOS, Android. Unleash runs on web, api, linux.
Can I use ProtonVPN for free?
Both have a free tier, so you can try either at no cost before committing.
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 Unleash is typically brought in for.
What can ProtonVPN do that Unleash cannot?
ProtonVPN covers No-logs policy, Secure Core, Kill Switch, DNS leak protection. Unleash covers Feature flags, A/B/n testing, Custom targeting, SDKs.

Answered from the vendors’ own pages

Unleash: What does Unleash cost?

Unleash offers a Pay-As-You-Go cloud plan at $75/seat/month with a 14-day free trial, plus a custom-priced Enterprise plan for self-hosted or hybrid deployments.

Source
Unleash: How is usage metered?

The Pay-As-You-Go plan includes 53M API requests per month, with additional traffic billed at $5 per million requests thereafter.

Source
Unleash: What does Unleash integrate with, and is there an API?

Unleash provides an API and 25+ official SDKs across languages, along with SSO integrations via SAML 2.0 and OpenID Connect.

Source
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