ButterflyLinker

Network Diagnostics & Safety Tool with Optional Encrypted Tunnel

✓ Check Wi-Fi Security • ✓ Verify DNS Integrity • ✓ Test Connection Speed

No account required. No logs. Local-only processing.

Download on the App Store

Powerful Network Diagnostics

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Wi-Fi Safety Scanner

Detect hotspot hijacking, router tampering, and unsafe access points. Get real-time security risk assessments with detailed explanations.

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DNS Leak Detection

Ensure your DNS queries aren't exposed or redirected by unsafe servers. Verify DNS integrity and detect potential security threats.

Speed Testing

Measure download, upload speeds, and latency. Identify network anomalies with intelligent spike and drop detection.

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Network Status Monitor

View real-time connection details including Wi-Fi name, IP address, DNS server, and security status at a glance.

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Optional Encrypted Tunnel

Enhance your privacy with optional VLESS protocol support. Multiple server locations with automatic best-node selection.

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Smart Recommendations

Get intelligent node recommendations based on stability, success rate, and latency computed from your local connection history.

Privacy First, Always

Your privacy is our top priority. We don't collect, store, or share your personal data.

Read our full Privacy Policy →

Go Premium, Go Ad-Free

Enjoy an uninterrupted experience with Premium subscription

Monthly

$1.99
per month
  • No advertisements
  • All features unlocked
  • Priority support
  • Cancel anytime

Yearly

$59.90
12 months • Maximum Savings
  • No advertisements
  • All features unlocked
  • Priority support
  • Best long-term value

All subscriptions are processed securely through Apple's App Store. Cancel anytime through your Apple ID settings.