Send the following on WhatsApp
Continue to Chat【iOS APP】Wi-Fi Widget 別再為網路煩惱~Wi-Fi訊號檢測器 https://app.yipee.cc/83476/%e3%80%90ios-app%e3%80%91wi-fi-widget-%e5%88%a5%e5%86%8d%e7%82%ba%e7%b6%b2%e8%b7%af%e7%85%a9%e6%83%b1wi-fi%e8%a8%8a%e8%99%9f%e6%aa%a2%e6%b8%ac%e5%99%a8/