diff --git a/controllers/site.js b/controllers/site.js
index 3fdcc6c..f7e58a0 100644
--- a/controllers/site.js
+++ b/controllers/site.js
@@ -174,3 +174,11 @@ exports.sitemap = function (req, res, next) {
     }
   }));
 };
+
+exports.appDownload = function (req, res, next) {
+  if (/Android/i.test(req.headers['user-agent'])) {
+    res.redirect('http://fir.im/ks4u');
+  } else {
+    res.redirect('https://itunes.apple.com/cn/app/id954734793');
+  }
+};
diff --git a/public/stylesheets/style.less b/public/stylesheets/style.less
index 6a4b02f..fd03ccc 100644
--- a/public/stylesheets/style.less
+++ b/public/stylesheets/style.less
@@ -1257,3 +1257,6 @@ textarea.editor {
 .jiathis_style_24x24 {
   display: inline-block;
 }
+#app_download {
+  text-align: center;
+}
diff --git a/views/sidebar.html b/views/sidebar.html
index b327231..5edeec2 100644
--- a/views/sidebar.html
+++ b/views/sidebar.html
@@ -104,5 +104,15 @@
       </ol>
     </div>
   </div>
+  <div class='panel'>
+    <div class='header'>
+      <span class='col_fade'>客户端二维码</span>
+    </div>
+    <div class='inner' id="app_download">
+      <img width='200' src="data:image/gif;base64,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">
+      <br />
+      <a href="https://itunes.apple.com/cn/app/id954734793" target="_blank">iOS</a>/<a href="http://fir.im/ks4u" target="_blank">Android</a>
+    </div>
+  </div>
 
 </div>
diff --git a/views/static/about.html b/views/static/about.html
index f70f365..78d023b 100644
--- a/views/static/about.html
+++ b/views/static/about.html
@@ -24,13 +24,10 @@ CNode 的 SLA 保证是，一个9，即 90.000000%。
 ### 移动客户端
 
 客户端由 [@ilanceli](http://cnodejs.org/user/ilanceli) 开发维护。
+
 源码地址：[https://github.com/lanceli/cnodejs-ionic](https://github.com/lanceli/cnodejs-ionic)。
 
-[iOS客户端](https://itunes.apple.com/cn/app/cnodejs-node.js-zhong-wen/id954734793)
-![iOS qrcode](http://ww3.sinaimg.cn/large/658e3191gw1eo6j4b8p0nj205k05kwet.jpg)
-
-[Android客户端](http://fir.im/ks4u)
-![Android qrcode](http://ww2.sinaimg.cn/large/658e3191gw1eo6j4maqj6j205k05kjrm.jpg)
+立即体验 CNode 客户端，直接扫描页面右侧二维码，或者应用市场搜索“CNode社区”下载。
 
 */
         })) %>
diff --git a/web_router.js b/web_router.js
index 75d9072..3263244 100644
--- a/web_router.js
+++ b/web_router.js
@@ -31,6 +31,8 @@ var router = express.Router();
 router.get('/', site.index);
 // sitemap
 router.get('/sitemap.xml', site.sitemap);
+// app download
+router.get('/app/download', site.appDownload);
 
 // sign controller
 if (config.allow_sign_up) {