Castle vs Proton VPN
Side-by-side comparison of features, pricing, and integrations.
Quick Verdict
Castle offers more features (41 vs 40) and fewer integrations (1 vs 13). Starting price: Castle at $200/mo vs Proton VPN at Free. Castle has 41 unique features while Proton VPN has 40 unique features, with 0 features in common.
| Castle | Proton VPN | |
|---|---|---|
| Category | Cybersecurity | Cybersecurity |
| Total Features | 41 | 40 |
| AI-Powered Features | 4 | 0 |
| Starting Price | $200/mo | Free |
| Pricing Tiers | 3 | 3 |
| Integrations | 1 | 13 |
| Shared Features | 0 | |
| Shared Integrations | 0 | |
| Data Quality | 70% | 85% |
Feature Comparison by Category
AI & ML (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| AI Scoring |
API (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Real-time API |
Access (0 vs 6)
| Feature | Castle | Proton VPN |
|---|---|---|
| 15,000+ Servers in 120+ Countries | ||
| Browser Extensions | ||
| Multi-Platform Support | ||
| Multiple Device Support | ||
| Quick Connect | ||
| Streaming Support |
Analytics (4 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Network Analysis | ||
| Pattern Exploration | ||
| Session Monitoring | ||
| User Behavior Analytics |
Censorship Bypass (0 vs 3)
| Feature | Castle | Proton VPN |
|---|---|---|
| Alternative Routing | ||
| Content Unblocking | ||
| Stealth Protocol |
Customization (2 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Custom Metrics | ||
| Custom Signals |
Deployment (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Edge Deployment |
Detection (21 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Account Takeover Detection | ||
| Behavioral Analysis | ||
| Bot Behavior Detection | ||
| Bot Detection | ||
| Device Fingerprinting | ||
| Disposable Email Detection | ||
| Email Intelligence | ||
| Emulator Detection | ||
| Fake Account Detection | ||
| High Activity Detection | ||
| IP Geolocation | ||
| Impossible Travel Detection | ||
| Jailbroken Device Detection | ||
| Multi-accounting Detection | ||
| New Country Detection |
Encryption (0 vs 3)
| Feature | Castle | Proton VPN |
|---|---|---|
| AES-256 Encryption | ||
| ChaCha20 Encryption | ||
| Forward Secrecy |
Integration (3 vs 4)
| Feature | Castle | Proton VPN |
|---|---|---|
| Cloudflare Integration | ||
| Proton Calendar Integration | ||
| Proton Drive Integration | ||
| Proton Mail Integration | ||
| Proton Pass Integration | ||
| SDK Integration | ||
| Webhooks |
Management (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Case & List Management |
Notifications (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Slack Alerts |
Performance (0 vs 7)
| Feature | Castle | Proton VPN |
|---|---|---|
| High-Speed Servers | ||
| P2P/BitTorrent Support | ||
| Port Forwarding | ||
| Smart Protocol | ||
| Split Tunneling | ||
| Unlimited Bandwidth | ||
| VPN Accelerator |
Policy & Rules (2 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Policies | ||
| Rules Engine |
Privacy (0 vs 4)
| Feature | Castle | Proton VPN |
|---|---|---|
| IP Address Masking | ||
| No-Logs Policy | ||
| Swiss Privacy Protection | ||
| Tor Over VPN |
Protocols (0 vs 2)
| Feature | Castle | Proton VPN |
|---|---|---|
| OpenVPN Protocol | ||
| WireGuard Protocol |
Scoring (3 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| ATO Score | ||
| Abuse Score | ||
| Bot Score |
Security (0 vs 9)
| Feature | Castle | Proton VPN |
|---|---|---|
| Always-On VPN | ||
| DNS Leak Protection | ||
| Full Disk Encryption | ||
| Independent Security Audits | ||
| Kill Switch | ||
| NetShield Ad-Blocker | ||
| Open Source Apps | ||
| Secure Core | ||
| Two-Factor Authentication |
Support (0 vs 2)
| Feature | Castle | Proton VPN |
|---|---|---|
| 30-Day Money-Back Guarantee | ||
| Customer Support / Live Chat |
Testing & Validation (1 vs 0)
| Feature | Castle | Proton VPN |
|---|---|---|
| Rule Backtesting |
Unique Features
Only in Castle (41)
AI Scoring
Network Analysis
Pattern Exploration
Session Monitoring
User Behavior Analytics
Real-time API
Custom Metrics
Custom Signals
Edge Deployment
Account Takeover Detection
Behavioral Analysis
Bot Behavior Detection
Bot Detection
Device Fingerprinting
Disposable Email Detection
Email Intelligence
Emulator Detection
Fake Account Detection
High Activity Detection
Impossible Travel Detection
+ 21 more unique features
Only in Proton VPN (40)
15,000+ Servers in 120+ Countries
Browser Extensions
Multi-Platform Support
Multiple Device Support
Quick Connect
Streaming Support
Alternative Routing
Content Unblocking
Stealth Protocol
AES-256 Encryption
ChaCha20 Encryption
Forward Secrecy
Proton Calendar Integration
Proton Drive Integration
Proton Mail Integration
Proton Pass Integration
High-Speed Servers
P2P/BitTorrent Support
Port Forwarding
Smart Protocol
+ 20 more unique features
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