Citadel VPN & WiFi Security · iOS + AndroidFind hackers
on your WiFi.
In seconds.
Is someone on your WiFi right now that shouldn't be? Your router won't tell you. Your phone won't either. Citadel will: open the app, tap scan, and see every device on the network, every attack tool, and a plain-English verdict. Then go dark on a one-tap WireGuard VPN.
Secure every connection. Protect what matters.
Launch the Citadel Guardian dashboard- Free to install
- 3-day Pro trial, no card required
- No account or login
- Scan data stays on your phone
Simulated scan with sample data. Nothing on this page touches your network.
The moment that matters
You're at the gate. Flight boards in 40 minutes. You need to send a contract. Tap Initiate Network Scan and watch what the app does in the first 14 seconds: the safety gate checks whether client isolation is protecting you, then the deep sweep finds every host, fingerprints its ports, and scores the risk.
The demo uses the same risk levels, colors and threat titles as the phone app. When it finds a device announcing itself as Kali Linux with Metasploit-style ports open, it says so, in plain English, with what to do next.
Nothing happened to you. That's the win.
Built by cybersecurity professionals.
Made for anyone.
No technical knowledge required. No jargon. Just answers.
Find hackers and intruders
Instantly detect unknown devices on your home or public WiFi. Get alerted when a new device joins. Spot evil-twin networks that steal your passwords.
Trained on real attack tools
Citadel recognizes the network signatures of Kali Linux, ParrotOS, Metasploit, Burp Suite, SpiderFoot, Nmap/Zenmap and Wireshark, and flags the open proxy services behind OWASP ZAP and mitmproxy. New fingerprints ship with every update.
See the whole network
An interactive map shows every device and how they connect. Visual threat flags: red means danger, green means safe. Tap any device to see what it is doing, and track which devices come and go.
Know what is running
Automatic device classification: printer, camera, or a database server that should not be there? Port scanning reveals hidden services. Every device gets a risk score: Low, Medium, High, Critical.
Safe on public WiFi
On launch a safety gate scans the network in about 14 seconds. Is client isolation shielding you, or can every guest see your device? You get the verdict before you type a password.
Network tools built in
Ping, NSLookup and Speed Test. Trusted-network profiles, scan history, and device trust controls so the app learns which networks and devices are yours.
One tap. Two continents. Zero logs.
Tap once and you're inside a WireGuard tunnel. Airports, hotels, coffee shops, conference halls: if you work from anywhere, this is the layer between you and every network you don't control.
- One tap, two continents
Servers in US East and EU Frankfurt, both operated by GRYHAT. Citadel measures latency to each and connects you to the fastest.
- Automatic failover
If your server ever stops responding, the tunnel switches to the other one on its own, even while your phone is locked. The VPN screen tells you why: "Nearest server" or "Rolled over to".
- Military-grade encryption, named
ChaCha20, the cipher WireGuard was built around and the one TLS 1.3 trusts for most of the encrypted web. Most VPNs show you a lock icon. Citadel shows you the cipher, on screen.
- Identity mask, zero logs
On public WiFi your phone broadcasts your real IP, carrier and location. On Citadel your connection looks like plain datacenter transit. No traffic logs, no browsing history, nothing to sell.
Green means go. Red means get off.
Start free. Upgrade in the app.
Pro is a 3-day free trial with no card required, then the price you pick. Billed by Apple or Google. Cancel anytime.
Free
Install and scan. No account, no login.
- 3 network scans per day
- Basic device detection
- Threat alerts
- 7-day scan history
Pro
Unlimited scanning plus the one-tap VPN.
- Unlimited scans
- Full port scanning
- Network topology map
- Traffic classification
- Extended scan history
- Priority threat intelligence
- One-tap WireGuard VPN — US East + EU Frankfurt
Prices in USD; local pricing may vary. Subscriptions auto-renew until cancelled in your App Store or Google Play account. Lifetime is a one-time purchase.
27 years in the security trenches.
Mission Viejo, Orange County, California. We've protected government contractors, healthcare organizations, and thousands of individuals across the country. Citadel is the same expertise, in your pocket.
Over 500,000 networks scanned. You have the right to defend yourself. Know before you connect.
Need more than an app?
If Citadel finds something on your business network, we can help. GRYHAT offers managed security, CMMC and SOC 2 compliance, penetration testing, and vCISO services for businesses across Southern California and beyond.
Straight answers.
Yes. The app is free to install and includes 3 network scans a day, basic device detection, threat alerts, and 7-day history. Pro adds unlimited scans, full port scanning, the network map, and the VPN, with a 3-day free trial that needs no card.
Know before you connect.
Free to install. Scan the WiFi you're on right now.
Citadel performs passive network scanning using standard iOS and Android networking APIs. It does not intercept, read, or store network traffic. All scan data stays on your device. Privacy policy · citadelcyber.ai
