diff --git a/templates/welcome.html b/templates/welcome.html
index d6e7dfc..9d75af9 100644
--- a/templates/welcome.html
+++ b/templates/welcome.html
@@ -1,5 +1,28 @@
 {% extends "layout.html" %}
 {% block content %}
+<div class="modal fade" tabindex="-1" role="dialog" id="dataInfo">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
+                <h4 class="modal-title">What information is stored about me?</h4>
+            </div>
+            <div class="modal-body">
+                <p>From querying the WaniKani API, this application stores the following information.</p>
+                <ul>
+                    <li>API Key</li>
+                    <li>Username</li>
+                    <li><a href="https://en.gravatar.com/site/implement/images/">Gravatar email hash</a></li>
+                    <li>Your WK SRS data for Radicals, Kanji and Vocabulary</li>
+                </ul>
+                <p>This application cannot make alterations in any way to your WaniKani account or any associated data.</p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-default btn-primary" data-dismiss="modal">Close</button>
+            </div>
+        </div><!-- /.modal-content -->
+    </div><!-- /.modal-dialog -->
+</div><!-- /.modal -->
 <div class="container centered">
     <div class="row">
         <div class="col-md-4 text-center"><h2>炎の亀</h2> <span class="label label-primary">BETA</span>
@@ -19,7 +42,13 @@
                 </span>
             </div>
         </form>
-        <div class="navbar-text"><a href="https://www.wanikani.com/account"><img alt="WaniKani" src="{{ url_for('static', filename='wanikani.png') }}"> WaniKani Account (Get API key from here!)</a></div>
+        <div class="navbar-text"><a href="https://www.wanikani.com/account"><img alt="WaniKani" src="{{ url_for('static', filename='wanikani.png') }}"> WaniKani Account (Get API key from here!)</a>
+            <br />
+            <br />
+            <button type="button" class="btn btn-link" data-toggle="modal" data-target="#dataInfo">
+                What information is stored about me?
+            </button>
+        </div>
         </div>
         <div class="col-md-8 col-xs-12">
             {% for error in form.api_key.errors %}