Question 1

Is Casper trying to replace ProtonVPN?

Accepted Answer

Not really — they're more complementary than directly substitutable. ProtonVPN is genuinely best-in-class for: (a) the Proton ecosystem bundle (Mail/Drive/Calendar/Pass + VPN under one subscription), (b) streaming-region bypass on Netflix/BBC/Hulu/Disney+, (c) niche features like Secure Core double-VPN and Tor-over-VPN, (d) Swiss jurisdiction, (e) 10+ years of audit history. Casper is the unified-privacy-stack alternative for users who want VPN + DNS-level ad/tracker blocking (via Pi-hole) + ML-based zero-day phishing detection in one consumer app. Different shapes of privacy product.

Question 2

How does pricing actually compare?

Accepted Answer

ProtonVPN Free is $0 (3 countries, 1 device, no NetShield, no streaming). ProtonVPN Plus is roughly $5–10/mo depending on plan length. Proton Unlimited is roughly $10/mo and bundles Mail+Drive+Calendar+Pass+VPN. Casper is paid-only — see /subscriptions for current pricing. If you need Mail/Drive/Calendar/Pass alongside VPN, Proton Unlimited is a strong value because the bundle costs less than each separately. If you want a unified privacy app (VPN+DNS+ML threat detection) and already have email/drive/calendar covered, Casper's stack is what's on offer.

Question 3

What about ProtonVPN's NetShield vs Casper's Pi-hole + ML?

Accepted Answer

Both block ads/trackers/malicious domains at the DNS layer when you're connected to the VPN. NetShield uses a static, hand-curated blocklist tuned for conservativeness (less site-breakage). Casper runs a Pi-hole instance per user with broader, more aggressive blocklists (StevenBlack consolidated, OISD, AdGuard DNS, plus our own list) — see /compare/pi-hole. On top of that, Casper layers an ML model that scores domains in real time for zero-day phishing detection — catching newly-registered infrastructure before it hits any static blocklist. NetShield is genuinely good static-list filtering; Casper adds dynamic ML detection on top.

Question 4

What about Secure Core and Tor-over-VPN — does Casper do those?

Accepted Answer

No to both. Secure Core is ProtonVPN's flagship technical feature — your traffic is routed through a server in Switzerland, Iceland, or Sweden before exiting to your chosen country. Tor-over-VPN integrates Tor entry nodes directly. Both are niche features that matter to journalists, activists, and threat models including nation-state observation. Casper doesn't ship either; if you need them, ProtonVPN is the right tool.

Question 5

Why is ProtonVPN audited so well? Should I weight that heavily?

Accepted Answer

ProtonVPN has commissioned independent audits by Securitum (and earlier by SEC Consult) on a roughly-annual cadence since 2018, plus the 2019 Swiss court ruling that tested their no-log policy with real legal pressure. That's an unusually long track record of external verification. Audits matter, and Proton's audit history is a strong differentiator. Casper publishes audit reports too, but with a shorter track record. Audits should be one factor among several (architecture, jurisdiction, transparency, incentive alignment) — Proton wins this specific dimension and any thoughtful evaluation should give them credit.

Question 6

Is the Proton Unlimited bundle a better deal than separate apps?

Accepted Answer

Yes, if you'll actually use all of Mail/Drive/Calendar/Pass/VPN. Proton Unlimited at ~$10/mo prices below the sum of each individually. The economic logic — sell more services to the same customer at a marginal rebate — works in your favor. The caveat: ProtonMail/Drive/Calendar/Pass are real, capable products but not necessarily best-in-class compared to alternatives. If your existing setup is Gmail + Google Drive + Bitwarden and you're happy, the bundle's marginal value is just the VPN. If you're actively migrating away from Google, the bundle is a significant lever.

Question 7

What about jurisdiction? Switzerland vs Casper's?

Accepted Answer

Switzerland (where Proton is incorporated) has strong data protection laws, no mandatory data retention, and isn't a Fourteen Eyes member. Widely regarded as one of the best jurisdictions for a privacy-focused service. The honest framing: jurisdiction matters less if you don't log in the first place (you can't hand over logs you don't have), and more if you do log. ProtonVPN's combination of Swiss jurisdiction + audit-verified no-log policy + the 2019 court precedent is the gold-standard answer. Casper publishes its incorporation jurisdiction in the privacy policy and runs an audit-verified no-log architecture; whether that's equivalent depends on how much weight you put on jurisdictional residue.

Question 8

Can I migrate from ProtonVPN to Casper?

Accepted Answer

Yes. There's no contact list or settings to migrate (privacy-focused services don't have much portable data). You install the Casper app, sign up, and connect. The reverse is also straightforward. Both products run on standard WireGuard/OpenVPN, so there's no platform lock-in either way. Many users try both via Proton's free tier vs Casper's subscription and decide based on actual feel rather than feature checklists.

Question 9

How does Casper compare to NordVPN, ExpressVPN, Mullvad, Surfshark?

Accepted Answer

See /compare/vpn for head-to-head against NordVPN and ExpressVPN (those two are streaming-bypass specialists; Casper is privacy-stack-unifier). Mullvad is the closest privacy-philosophy competitor to ProtonVPN — anonymous-account, Swedish, audit-verified — with the simplest pricing ($5/mo flat). Surfshark is the budget streaming option. Casper's specific differentiation against all of them is the same: unified VPN + Pi-hole DNS filtering + ML threat detection in one consumer app.

Feature	Casper's Cloak	ProtonVPN
Encrypted VPN tunnel (WireGuard / OpenVPN)
Both offer WireGuard + OpenVPN. ProtonVPN also offers their proprietary 'Stealth' obfuscated protocol for restrictive networks (China, Iran). Casper uses standard WireGuard.
Verified no-log policy with independent audit
ProtonVPN's no-log policy was tested in Swiss court in 2019 (the Securitum audit history is also unusually long). Casper publishes annual audit reports. Both audit-verified, ProtonVPN has the longer track record.
Network-level ad blocking (every app)
ProtonVPN's NetShield blocks ads, trackers, and malware via DNS at the VPN level — works on every app. The blocklist composition is conservative (avoids breaking sites) but smaller than Pi-hole's. Casper runs Pi-hole as the DNS resolver, which gives larger and more aggressive blocklists out of the box. See /compare/pi-hole for the Pi-hole-engine detail.
Network-level tracker blocking
NetShield (Plus/Visionary) blocks trackers; Casper's Pi-hole engine handles trackers via the same DNS-resolver path. Both work across every app.
AI / ML-based zero-day phishing detection
ProtonVPN's NetShield uses static blocklists — known-bad domains. Casper adds an ML-based threat detection layer that scores domains in real time, catching newly-registered phishing infrastructure that hasn't hit blocklists yet. Static-list vs static-list + ML.
CNAME-cloaked tracker resolution
Casper's Pi-hole engine resolves CNAME-cloaked trackers (the tracker pretends to be a first-party domain). ProtonVPN's NetShield handles common CNAME-cloaking but the published blocklist coverage is narrower.
Free tier
ProtonVPN Free: 3 countries (US/NL/JP/RO depending on availability), 1 device, no streaming, no NetShield. Useful for occasional coffee-shop encryption. Casper is paid-only — no free tier — see /blog/free-vpn-vs-paid-2026 for the honest reasoning.
Server fleet size (country count)
ProtonVPN: 110+ countries, 8,000+ servers. Casper: smaller but optimized for North America + Europe + APAC primaries. If you need a specific niche country, Proton's coverage is deeper.
Streaming-region bypass (Netflix UK from US, etc.)
ProtonVPN Plus has streaming-optimized servers tuned for IP-whitelist evasion against Netflix/BBC/Hulu/Disney+. Casper's VPN supports region selection but isn't optimized for the streaming-whitelist arms race.
Secure Core (double-VPN through privacy-friendly countries)
ProtonVPN's Secure Core routes traffic through a server in Switzerland/Iceland/Sweden before the exit country — defense against compromised exit servers in less-privacy-friendly jurisdictions. Niche but real. Casper doesn't ship a double-VPN feature.
Tor-over-VPN
ProtonVPN integrates Tor entry nodes directly — connect to a Tor-enabled server and your traffic exits the Tor network. Niche but useful for journalists/activists. Casper doesn't integrate Tor at the network layer (you can run Tor on top of Casper, of course).
Per-app routing (which apps tunnel, which don't)
Casper supports per-app routing on iOS/Android/macOS (split-tunneling at the app level — e.g., banking app bypasses VPN). ProtonVPN supports split-tunneling on Windows/Android natively; on iOS/macOS the feature is more limited.
Ecosystem bundle (mail, drive, calendar, password manager)
Proton Unlimited bundles ProtonVPN with ProtonMail, Drive, Calendar, and Pass for ~$10/mo — privacy-focused alternatives to Gmail/Google Drive/Calendar/Bitwarden. Casper is VPN+DNS+threat-detection only; not an email or productivity suite.
Open-source clients
All ProtonVPN clients (Windows/Mac/Linux/iOS/Android) are open-source under GPL. Casper's clients are not fully open-source today.
Swiss jurisdiction (favorable privacy law)
ProtonVPN is incorporated in Switzerland — generally regarded as favorable for user privacy (strong data protection laws, no mandatory data retention, outside Fourteen Eyes intelligence sharing).
Single-app unified UX (VPN + DNS + threat detection in one)
Casper's single app includes VPN + Pi-hole DNS + ML threat detection — no separate config. ProtonVPN's NetShield is a toggle inside the VPN app, but full ML threat detection isn't part of the bundle.
P2P / torrenting support
Both support P2P on paid plans.
Founded year
Proton was founded in 2014 by ex-CERN scientists; ProtonVPN launched 2017. 10+ years of operational history. Casper is newer.

Casper's Cloak vs ProtonVPN: where each one actually wins

Feature-by-feature comparison

When you'd pick each (honest)

…if you want a unified privacy stack in one consumer app

…if you want the Proton ecosystem, streaming, or niche power-user features

Casper vs ProtonVPN FAQs

Unified privacy stack, one consumer app.