这是一个简单的js脚本(在html标签)，检测设备类型，然后重定向到正确的商店。

<script>
var userAgent = navigator.userAgent || navigator.vendor || window.opera;

    // Huawei Phone must come first because its UA also contains "Android"
    if (userAgent.includes("HUAWEI")) {
       window.location.replace("https://appgallery.huawei.com/app/C101184875");
    } else if (userAgent.includes("Android")) {
        window.location.replace("https://play.google.com/store/apps/details?id=org.telegram.messenger&hl=en&gl=US");
    } else if (userAgent.includes("iPhone")) {
        window.location.replace("https://apps.apple.com/us/app/telegram-messenger/id686449807");
    } else {
        //cant be sure about device, so redirect to home page
        window.location.replace("https://google.ro");
    }
</script>

解决方案1:用户代理嗅探

Android和iPhone:

if( /Android|webOS|iPhone|iPad|iPod|Opera Mini/i.test(navigator.userAgent) ) {
 // run your code here
}

如果你想检测所有的移动设备，包括黑莓和Windows手机，那么你可以使用这个综合版本:

var deviceIsMobile = false; //At the beginning we set this flag as false. If we can detect the device is a mobile device in the next line, then we set it as true.


if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) 
    || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))) {
   deviceIsMobile = true;
}

if(deviceIsMobile){
    // run your code here
}

缺点:随着新手机和品牌的不断推出，用户代理字符串也在不断变化和更新。所以如果你想要支持所有的移动设备，你需要保持这个列表的更新。

解决方案2:移动检测JS库

你可以使用移动检测JS库来做到这一点。

缺点:这些基于javascript的设备检测功能可能只适用于最新一代的智能手机，比如iPhone、Android和Palm WebOS设备。这些设备检测功能可能不适用于对JavaScript支持较差的旧智能手机，包括旧的黑莓、PalmOS和Windows Mobile设备。

您可以测试用户代理字符串:

/**
 * Determine the mobile operating system.
 * This function returns one of 'iOS', 'Android', 'Windows Phone', or 'unknown'.
 *
 * @returns {String}
 */
function getMobileOperatingSystem() {
    var userAgent = navigator.userAgent || navigator.vendor || window.opera;

    // Windows Phone must come first because its UA also contains "Android"
    if (/windows phone/i.test(userAgent)) {
        return "Windows Phone";
    }

    if (/android/i.test(userAgent)) {
        return "Android";
    }

    // iOS detection from: http://stackoverflow.com/a/9039885/177710
    if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
        return "iOS";
    }

    return "unknown";
}

如果你的网站使用React Js，请使用https://www.npmjs.com/package/react-device-detect

你也可以在php上使用用户代理来实现这一点:

$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);

if(stripos($userAgent,'android') !== false) { // && stripos($userAgent,'mobile') !== false) {
  header('Location: http://oursite.com/download/yourApp.apk');

exit();

}

可以使用导航器。获取安装浏览器的操作系统的平台。

function getPlatform() {
   var platform = ["Win32", "Android", "iOS"];

   for (var i = 0; i < platform.length; i++) {

       if (navigator.platform.indexOf(platform[i]) >- 1) {

           return platform[i];
       }
   }
}

getPlatform();