diff --git a/metadata/de.stephanlindauer.criticalmaps.txt b/metadata/de.stephanlindauer.criticalmaps.txt
index 1438bed316..d133685a92 100644
--- a/metadata/de.stephanlindauer.criticalmaps.txt
+++ b/metadata/de.stephanlindauer.criticalmaps.txt
@@ -1,3 +1,4 @@
+AntiFeatures:NonFreeNet
 Categories:Internet
 License:Apache2
 Web Site:http://criticalmaps.net
@@ -10,6 +11,9 @@ Description:
 This app tracks your location and shares it via a [http://criticalmaps.net map]
 with all other participants of the critical mass bicycle protest.
 You can use the chat to communicate with all other participants.
+
+Location sharing and chat relies on [http://criticalmaps.net criticalmaps.net].
+The communication is unencrypted at the moment.
 .
 
 Repo Type:git