Proton VPN review & overview
Swiss-based, open-source audited apps, genuinely usable free tier and Secure Core multi-hop routing.
Proton VPN sits in the vpn space and is most often picked for privacy, free-tier. Below is a quick, no-fluff overview to help you decide if it fits.
Key facts
| Category | VPN |
| Pricing | Free tier; ~$4.99/mo on 2-year Plus plan |
| Best for | privacy, free-tier |
| Affiliate program | Yes — Direct (Proton affiliate program) |
Who it's for
Proton VPN makes most sense for privacy.
- privacy
- free-tier
Key features
What you actually get with Proton VPN, drawn from independent reviews and the vendor's own documentation:
- Secure Core multi-hop routing through hardened servers in Switzerland/Iceland/Sweden
- Genuinely unlimited-data free tier (1 device, limited countries)
- NetShield DNS-level ad/tracker/malware blocker
- Open-source apps on every platform
- Stealth/obfuscation protocol and Tor-over-VPN
Integrations
Proton VPN connects with Proton ecosystem (Mail, Drive, Pass, Calendar), Browser extensions, Routers and Linux GUI / CLI.
What makes it stand out
The only major VPN combining fully open-source apps, Swiss jurisdiction and a no-data-cap free tier.
Who it's best for
Privacy-focused users and those wanting a trustworthy free VPN with upgrade room.
Strengths & trade-offs
The honest balance for Proton VPN, from independent reviews rather than its sales page. We go deeper in the full Proton VPN review.
Strengths
- + All apps open-source and independently audited
- + Swiss jurisdiction with strong privacy law
- + Free tier with unlimited data and no ads
Trade-offs
- - Plus pricing higher than budget rivals
- - Free tier limited to one device and a few countries
- - Smaller server network than the largest providers
Notable facts
Concrete, checkable details rather than marketing claims:
- Based in Switzerland, outside the 5/9/14 Eyes, no mandatory data retention
- Passed its 5th annual independent no-logs audit; apps audited (latest by Securitum, Aug 2025)
- First major VPN to open-source all its apps
- 131 Secure Core servers across hardened entry nodes; servers in 100+ countries
- Operated by Proton AG, the maker of Proton Mail
Sources
The features and facts above on Proton VPN are drawn from these independent reviews and vendor pages: