diff --git a/README.md b/README.md
index c50f153..e130d8f 100644
--- a/README.md
+++ b/README.md
@@ -1,18 +1,20 @@
 # leanote-ios
 
+<a href="https://itunes.apple.com/cn/app/leanote/id1022302858?mt=8" title="Download From App Store" class="ios-download">
+    <img style="width: 200px;" src="http://app.leanote.com/images/ios/apple-store-logo.png" alt="Download From App Store">
+</a>
+
 Coming soon!
 
 ![](./preview/login.png)
 &nbsp;
 ![](./preview/register.png)
-![](./preview/notes.png)
+![](./preview/note.jpeg)
 &nbsp;
-![](./preview/note.png)
-![](./preview/editor.png)
+![](./preview/post.jpeg)
+![](./preview/editor.jpeg)
 &nbsp;
-![](./preview/me.png)
-![](./preview/notebook.png)
-&nbsp;
-![](./preview/tag.png)
+![](./preview/cate.jpeg)
+![](./preview/me.jpeg)
 
 Join us: leanote@leanote.com
diff --git a/preview/cate.jpeg b/preview/cate.jpeg
new file mode 100644
index 0000000..47b6f69
Binary files /dev/null and b/preview/cate.jpeg differ
diff --git a/preview/editor.jpeg b/preview/editor.jpeg
new file mode 100644
index 0000000..e687338
Binary files /dev/null and b/preview/editor.jpeg differ
diff --git a/preview/editor.png b/preview/editor.png
deleted file mode 100644
index 88274bb..0000000
Binary files a/preview/editor.png and /dev/null differ
diff --git a/preview/me.jpeg b/preview/me.jpeg
new file mode 100644
index 0000000..fc8833c
Binary files /dev/null and b/preview/me.jpeg differ
diff --git a/preview/me.png b/preview/me.png
deleted file mode 100644
index 7880445..0000000
Binary files a/preview/me.png and /dev/null differ
diff --git a/preview/note.jpeg b/preview/note.jpeg
new file mode 100644
index 0000000..16e873b
Binary files /dev/null and b/preview/note.jpeg differ
diff --git a/preview/note.png b/preview/note.png
deleted file mode 100644
index 6c96508..0000000
Binary files a/preview/note.png and /dev/null differ
diff --git a/preview/notebook.png b/preview/notebook.png
deleted file mode 100644
index ed7df5f..0000000
Binary files a/preview/notebook.png and /dev/null differ
diff --git a/preview/notes.png b/preview/notes.png
deleted file mode 100644
index 2e95d5b..0000000
Binary files a/preview/notes.png and /dev/null differ
diff --git a/preview/post.jpeg b/preview/post.jpeg
new file mode 100644
index 0000000..68a80ae
Binary files /dev/null and b/preview/post.jpeg differ
diff --git a/preview/tag.png b/preview/tag.png
deleted file mode 100644
index 622aa3c..0000000
Binary files a/preview/tag.png and /dev/null differ