diff --git a/app/src/main/java/de/sebse/fuplanner/fragments/PrefsFragment.java b/app/src/main/java/de/sebse/fuplanner/fragments/PrefsFragment.java
index d2dbc1f..f229b7b 100644
--- a/app/src/main/java/de/sebse/fuplanner/fragments/PrefsFragment.java
+++ b/app/src/main/java/de/sebse/fuplanner/fragments/PrefsFragment.java
@@ -1,11 +1,17 @@
 package de.sebse.fuplanner.fragments;
 
+import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceFragmentCompat;
 
 import de.sebse.fuplanner.R;
+import de.sebse.fuplanner.tools.logging.Logger;
 
-public class PrefsFragment extends PreferenceFragmentCompat {
+public class PrefsFragment extends PreferenceFragmentCompat implements SharedPreferences.OnSharedPreferenceChangeListener {
+
+    private Logger log = new Logger(this);
 
     public static PrefsFragment newInstance() {
         PrefsFragment fragment = new PrefsFragment();
@@ -18,5 +24,27 @@ public class PrefsFragment extends PreferenceFragmentCompat {
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         // Load the preferences from an XML resource
         setPreferencesFromResource(R.xml.preferences, rootKey);
+        for (String s : getPreferenceScreen().getSharedPreferences().getAll().keySet()) {
+            onSharedPreferenceChanged(getPreferenceScreen().getSharedPreferences(), s);
+        }
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
+        Preference preference = getPreferenceScreen().findPreference(s);
+        if (preference instanceof ListPreference)
+            preference.setSummary(((ListPreference) preference).getEntry());
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealAdapter.java b/app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealAdapter.java
index b40c05e..dfa0d54 100644
--- a/app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealAdapter.java
+++ b/app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealAdapter.java
@@ -9,6 +9,7 @@ import android.widget.BaseExpandableListAdapter;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.Canteen.types.Day;
 import de.sebse.fuplanner.services.Canteen.types.Meal;
+import de.sebse.fuplanner.tools.Preferences;
 import de.sebse.fuplanner.tools.ui.ItemViewHolder;
 import de.sebse.fuplanner.tools.ui.StringViewHolder;
 
@@ -93,7 +94,21 @@ class MealAdapter extends BaseExpandableListAdapter {
         ItemViewHolder itemHolder = new ItemViewHolder(convertView);
         itemHolder.mTitle.setText(meal.getName());
         itemHolder.mSubLeft.setText(meal.getCategory());
-        itemHolder.mSubRight.setText(mContext.getResources().getString(R.string.prices, meal.getPriceStdnt(), meal.getPriceEmply(), meal.getPriceOther()));
+        String value;
+        switch (Preferences.getString(mContext, R.array.pref_price_group)) {
+            case "student":
+                value = mContext.getString(R.string.price, meal.getPriceStdnt());
+                break;
+            case "employee":
+                value = mContext.getString(R.string.price, meal.getPriceEmply());
+                break;
+            case "other":
+                value = mContext.getString(R.string.price, meal.getPriceOther());
+                break;
+            default:
+                value = mContext.getString(R.string.prices, meal.getPriceStdnt(), meal.getPriceEmply(), meal.getPriceOther());
+        }
+        itemHolder.mSubRight.setText(value);
 
         return convertView;
     }
diff --git a/app/src/main/java/de/sebse/fuplanner/tools/Preferences.java b/app/src/main/java/de/sebse/fuplanner/tools/Preferences.java
new file mode 100644
index 0000000..b3c6985
--- /dev/null
+++ b/app/src/main/java/de/sebse/fuplanner/tools/Preferences.java
@@ -0,0 +1,12 @@
+package de.sebse.fuplanner.tools;
+
+import android.content.Context;
+import android.support.annotation.ArrayRes;
+import android.support.v7.preference.PreferenceManager;
+
+public class Preferences {
+    public static String getString(Context context, @ArrayRes int key) {
+        String[] strings = context.getResources().getStringArray(key);
+        return PreferenceManager.getDefaultSharedPreferences(context).getString(strings[0], strings[1]);
+    }
+}
diff --git a/app/src/main/res/values-de/arrays.xml b/app/src/main/res/values-de/arrays.xml
new file mode 100644
index 0000000..33b0bdc
--- /dev/null
+++ b/app/src/main/res/values-de/arrays.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="price_group_entries">
+        <item>Alle</item>
+        <item>Student</item>
+        <item>Angestellter</item>
+        <item>Andere</item>
+    </string-array>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 50cbcd0..0f88eef 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -41,4 +41,6 @@
     <string name="location_name">Ort: %1$s</string>
     <string name="module_name">Modul: %1$s</string>
     <string name="close">Schließen</string>
+    <string name="open_data_policy">Datenschutzrichtlinie</string>
+    <string name="open_data_policy_summary">Öffne die Datenschutzrichtlinie nach DSGVO</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
new file mode 100644
index 0000000..747e97b
--- /dev/null
+++ b/app/src/main/res/values/arrays.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="pref_price_group_entries">
+        <item>All</item>
+        <item>Student</item>
+        <item>Employee</item>
+        <item>Other</item>
+    </string-array>
+    <string-array name="pref_price_group_values">
+        <item>all</item>
+        <item>student</item>
+        <item>employee</item>
+        <item>other</item>
+    </string-array>
+
+
+
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/preferences.xml b/app/src/main/res/values/preferences.xml
new file mode 100644
index 0000000..e8305a6
--- /dev/null
+++ b/app/src/main/res/values/preferences.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="pref_price_group">
+        <item>@string/pref_price_group</item>
+        <item>@string/pref_price_group_default</item>
+    </string-array>
+    <string name="pref_price_group">pref_price_group</string>
+    <string name="pref_price_group_default">all</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 327a85f..d767135 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -48,4 +48,9 @@
     <string name="module_name">Module: %1$s</string>
     <string name="close">Close</string>
     <string name="root_preferences" translatable="false">root_preferences</string>
+    <string name="open_data_policy">Data Policy (German)</string>
+    <string name="open_data_policy_summary">Open Data Policy according to GDPR</string>
+    <string name="pref_price_group_title">Canteen Price Group</string>
+    <string name="pref_price_group_summary">Only show specific price category</string>
+    <string name="pref_price_group_dialog">Price Group Selection</string>
 </resources>
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index c3068ea..1bddf83 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -1,12 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     android:title="@string/root_preferences">
+    <ListPreference
+        android:key="@string/pref_price_group"
+        android:defaultValue="@string/pref_price_group_default"
+        android:title="@string/pref_price_group_title"
+        android:summary="@string/pref_price_group_summary"
+        android:entries="@array/pref_price_group_entries"
+        android:entryValues="@array/pref_price_group_values"
+        android:dialogTitle="@string/pref_price_group_dialog" />
     <PreferenceScreen
-        android:title="@string/hello_blank_fragment"
-        android:summary="@string/lorem_ipsum_100">
-
+        android:title="@string/open_data_policy"
+        android:summary="@string/open_data_policy_summary">
         <intent android:action="android.intent.action.VIEW"
             android:data="http://www.android.com" />
-
     </PreferenceScreen>
 </PreferenceScreen>
\ No newline at end of file