Do iPhone and Android scan Wi-Fi QR codes?

Modern iPhone and Android camera apps can recognize a Wi‑Fi QR and offer to join the network. Success depends on a correct WIFI:… payload, matching security type, and an exact SSID — not on this website “pushing” credentials to the phone.

What the QR contains

Common practice (documented in the ZXing barcode contents notes) is a string like WIFI:S:<SSID>;T:<WPA|WEP|nopass>;P:<password>;H:<true|false>;. Special characters in SSID/password are escaped. WifiSignQR builds that string in the browser.

iPhone

Apple’s iPhone User Guide covers using the Camera app with QR codes. For Wi‑Fi join prompts, keep iOS updated, grant Camera access if prompted, and ensure the device is not in a mode that blocks network changes (supervised devices / MDM can restrict joins).

Android

Google’s Android help documents connecting to Wi‑Fi networks; many OEMs also let you add a network from a QR in Settings → Network. Behavior varies slightly by manufacturer skin, but the same WIFI: payload is what those flows expect.

When scanning fails

• SSID mismatch (extra space, different band name like Cafe_5G vs Cafe).
• Wrong security type (marked Open but actually WPA2).
• Hidden network flag incorrect.
• Print too small, blurry, or low contrast.
• Phone already connected to another SSID with a captive portal interfering.

Fix the payload on a staff device, reprint, and test with one iOS and one Android handset before posting publicly.

Sources

• Apple — Use QR codes on iPhone: support.apple.com (iPhone QR codes)
• Google — Connect to Wi‑Fi networks on Android: support.google.com/android/answer/9431959
• ZXing — Barcode contents (Wi‑Fi): github.com/zxing/zxing/wiki/Barcode-Contents