diff --git a/index.html b/index.html
index 3a2bad5..a57de70 100755
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+++ b/index.html
@@ -169,6 +169,14 @@
     <div class='about'>
       <h1>Zzyzx</h1>
       <p>Whatever it is, it is awesome. Talk with us <a href="http://zzyzx.pw/category/app/showtimes">@Zzyzx Forum</a></p>
+      <hr/>
+      <h4>BETA channel</h4>
+      <p>If you like to try cutting-edge version--possibly buggy, Android app BETA channel sign up as following:</p>
+        <ul>
+          <li>Join Google group <a href="https://groups.google.com/d/forum/zzyzxer">ZZYZXer</a></li>
+          <li>Become a tester at <a href="https://play.google.com/apps/testing/co.zzyzx.showtimes.android">@ShowtimesTH BETA</a>, you will get beta version as soon as it arrives automatically.</li>
+        </ul>
+      <hr/>
     </div>
   </script>