Perimeter 81 vs Proton VPN: Which Cybersecurity Is Better in 2026?
Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction, side by side, with no marketing spin.
The Short Answer
Perimeter 81 vs Proton VPN, in 15 seconds
Choose Perimeter 81 if…
- You want the lower entry price
- You have strict security & compliance needs
Choose Proton VPN if…
- You prefer Proton VPN's approach and ecosystem
Head-to-Head Scorecard
How Perimeter 81 and Proton VPN score
Perimeter 81 leads on 3 of 9 measured dimensions.
- Even
Customer Rating
Average score from verified user reviews
PerimeterNo reviewsProtonNo reviews - Even
Review Volume
Number of verified reviews, a proxy for adoption
Perimeter0Proton0 - Perimeter 81
Entry Pricing
Lowest published starting price (free plan = lowest)
Perimeter$8/moProtonCustom - Even
Free Access
Availability of a free plan and/or free trial
PerimeterFree trialProtonFree trial - Even
Integrations
Number of listed third-party integrations
Perimeter6Proton6 - Even
Features
Number of listed product capabilities
Perimeter0Proton0 - Even
AI Features
Capabilities mentioning AI, automation or ML
Perimeter,Proton, - Perimeter 81
Security & Compliance
Number of listed compliance certifications
Perimeter3Proton2 - Perimeter 81
Platforms & Deployment
Supported platforms and deployment options
Perimeter7Proton4
Feature Comparison
Perimeter 81 vs Proton VPN feature breakdown
Search or filter the full feature matrix, core features, AI, integrations, APIs, security and compliance.
Perimeter 81
Proton VPNPricing Comparison
Perimeter 81 vs Proton VPN pricing
Entry pricing, plan tiers and the cost factors that shape total cost of ownership.
Perimeter 81
$8/mo to start- 2FA
- Business VPN
- Cloud management
- Basic ZTNA
- Segmentation
- Agentless ZTNA
- IdP integrations
- Device posture
Proton VPN
Custom to start- Analytics and reporting
- Integrations
- Standard support
- secure core servers
- cross-platform apps
- Advanced security and controls
- business and personal plans
- Dedicated support and onboarding
Total cost of ownership factors
Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.
Pros & Cons
Perimeter 81 vs Proton VPN: strengths and trade-offs
Perimeter 81
Pros
- Free trial offered
- Compliance: SOC 2, GDPR, ISO 27001
- Public API available
Cons
- No free plan
Proton VPN
Pros
- Free trial offered
- Compliance: SOC 2, GDPR
- Public API available
Cons
- No free plan
- Pricing is quote-based (less transparent)
Buyer Fit
Who should use Perimeter 81 vs Proton VPN?
Startups
Perimeter 81
Perimeter 81 keeps early-stage costs lowest with its entry tier.
Small businesses
Perimeter 81
Perimeter 81 offers the most accessible pricing for lean teams.
Agencies
Either
Either connects to more tools for multi-client workflows.
Enterprises
Perimeter 81
Perimeter 81 leads on compliance and breadth for complex needs.
Ecommerce
Either
Either integrates with more of the commerce stack.
SaaS companies
Either
Either is the more developer- and automation-friendly choice.
Integration overlap
Shared integrations (3)
Only in Perimeter 81 (3)
Only in Proton VPN (3)
Keep Exploring
Other alternatives worth considering
Similar cybersecurity products buyers compare alongside Perimeter 81 and Proton VPN.
Ask SIA which solution fits your business
SIA, Saaskart's AI buying assistant, weighs Perimeter 81 and Proton VPN against your team size, budget, integrations and compliance needs, then recommends the right fit and the questions to ask each vendor.
Get a personalised recommendationPerimeter 81 vs Proton VPN, Frequently Asked Questions
What is the difference between Perimeter 81 and Proton VPN?
Perimeter 81 and Proton VPN are both Cybersecurity solutions. Perimeter 81 is rated 0.0/5 by 0 users, while Proton VPN is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.
Which is better, Perimeter 81 or Proton VPN?
Based on user ratings, Perimeter 81 scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.
Which is cheaper, Perimeter 81 or Proton VPN?
Both products have custom pricing. We recommend contacting both vendors for a quote tailored to your team size.
Does Perimeter 81 or Proton VPN have a free plan?
Neither Perimeter 81 nor Proton VPN currently offers a free plan, but Perimeter 81 provides a free trial.
Can I switch from Perimeter 81 to Proton VPN?
Switching between Perimeter 81 and Proton VPN is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.
Who should use Perimeter 81 vs Proton VPN?
Perimeter 81 is best suited for teams that prioritise enterprise features. Proton VPN works well for teams needing advanced capabilities.
Our Verdict
The bottom line on Perimeter 81 vs Proton VPN
Best Overall
Either
It's a tie balances user satisfaction and proven adoption.
Best for Startups
Perimeter 81
Perimeter 81 has the friendliest entry point for new teams.
Best for Enterprise
Perimeter 81
Perimeter 81 leads on compliance and feature breadth.
Best Value
Perimeter 81
Perimeter 81 delivers the lowest cost to get started.
Best AI Features
Either
Comparable AI capabilities on both sides.
Highest Rated
Either
Both earn equal user ratings.