diff --git a/src/main/java/eu/siacs/conversations/generator/IqGenerator.java b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
index 10cf19de1a5eb3219cd948c788c7bf0202fcca07..7a5c1b9854aee8abfa6acd503cc3e3358d224668 100644
--- a/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
+++ b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
@@ -38,6 +38,7 @@ import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.services.MessageArchiveService;
+import eu.siacs.conversations.services.QuickConversationsService;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.xml.Element;
 import eu.siacs.conversations.xml.Namespace;
@@ -73,10 +74,21 @@ public class IqGenerator extends AbstractGenerator {
         Element query = packet.query("jabber:iq:version");
         query.addChild("name").setContent(mXmppConnectionService.getString(R.string.app_name));
         query.addChild("version").setContent(getIdentityVersion());
+        final StringBuilder os = new StringBuilder();
         if ("chromium".equals(android.os.Build.BRAND)) {
-            query.addChild("os").setContent("Chrome OS");
+            os.append("Chrome OS");
         } else {
-            query.addChild("os").setContent("Android");
+            os.append("Android");
+        }
+        os.append(" ");
+        os.append(android.os.Build.VERSION.RELEASE);
+        if (QuickConversationsService.isPlayStoreFlavor()) {
+            os.append(" (");
+            os.append(android.os.Build.BOARD);
+            os.append(", ");
+            os.append(android.os.Build.FINGERPRINT);
+            os.append(")");
+            query.addChild("os").setContent(os.toString());
         }
         return packet;
     }
diff --git a/src/playstore/res/values/strings.xml b/src/playstore/res/values/strings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..520dec85e75c0b89fc302122283b57e3cdf5a924
--- /dev/null
+++ b/src/playstore/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="sync_with_contacts_long">%1$s processes your contact list locally, on your device, to show you the names and profile pictures for matching contacts on the Jabber network.\n\nThis will upload your contact list to the server.</string>
+</resources>