WiFi HealthCheck

Check WiFi, DNS, TCP, HTTPS, IPv4/IPv6, WiFi roaming and stability on iPhone. LAN Scan now discovers common Bonjour services and verifies common TCP ports—all on device.

WiFi Health Check is an on-device Wi-Fi and LAN diagnostic tool for iPhone. It helps you check network connectivity and stability and investigate common DNS, TCP, HTTPS, IPv4/IPv6, captive portal, and Wi-Fi roaming issues.

No account is required, and the app does not rely on cloud storage. Diagnostic results and history stay on your device by default and leave it only when you choose to share a report.

KEY FEATURES

ONE-TAP NETWORK DIAGNOSTICS

• Inspect the current Wi-Fi and network path • Test system DNS, TCP, and HTTPS connectivity • Check for a captive portal • Compare IPv4 and IPv6 DNS and TCP/443 connectivity independently • Review a health score, confidence level, supporting evidence, and recommended actions

CURRENT NETWORK INFORMATION

View the current Wi-Fi name, BSSID, local IP address, estimated gateway, Wi-Fi security type, and access point vendor information. Availability depends on iOS permissions and the current network environment.

LAN TCP STABILITY TESTING

Configure the IP address and TCP port of a router, NAS, Proxmox server, printer, access point, or another local service, then run repeated connection tests.

Results can include:

• TCP connection success and failure rates • Timeout count and timeout rate • Connection refused, connection reset, and network unreachable events • Average and maximum latency • Live samples and a complete test report

WI-FI ROAMING TEST

Keep the app in the foreground while moving between locations to record BSSID samples, TCP continuity, and Wi-Fi node transitions.

Review:

• Start and destination locations • Roaming path and node transitions • TCP continuity and latency changes • Timeouts, sample count, and result confidence

The roaming test provides evidence from a real walking session. It is not a professional radio-frequency spectrum analysis tool.

LAN SCAN

When you start a scan, WiFi Health Check probes a defined set of common TCP service ports on the current Wi-Fi subnet.

Scan results can show:

• Local addresses with responding TCP services • Common TCP ports that responded • The scanned subnet and address count • Service-response changes compared with the previous complete scan of the same subnet • Newly responding ports and ports that no longer respond

LAN Scan shows only addresses with responses on the scanned TCP ports. It does not represent every device on the network, and a missing response alone does not prove that a device is offline.

HISTORY AND REPORTS

• Keep diagnostic, stability, roaming, and LAN Scan history • Manually save network measurements for different locations • Review diagnostic evidence and recommended actions • Compare LAN TCP service-response changes • Generate and share text-based diagnostic reports

PRIVACY FIRST

• No account required • No cloud storage for diagnostic history • Results stay on your device by default • Information leaves the device only when you choose to share a report • LAN scans and stability tests run only when you start them

Legal Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://wifi.opshome.run/privacy/