diff --git a/metadata/com.dougkeen.bart.yml b/metadata/com.dougkeen.bart.yml
index 2b54408d69..fd773c51e3 100644
--- a/metadata/com.dougkeen.bart.yml
+++ b/metadata/com.dougkeen.bart.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Navigation
 License: Apache-2.0
@@ -24,6 +26,8 @@ Description: |-
     There may be an issue with crashes on the Galaxy S: the author is working hard
     on a fix.
 
+    Tracking AntiFeature as it comes with Sentry which cannot be disabled.
+
 RepoType: git
 Repo: https://github.com/dougkeen/BartRunnerAndroid.git
 
@@ -71,6 +75,8 @@ Builds:
     gradle:
       - yes
 
+MaintainerNotes: 2.2.18 comes with Sentry and no way to disable it
+
 AutoUpdateMode: Version release_%v
 UpdateCheckMode: Tags
 CurrentVersion: 2.2.18
diff --git a/metadata/de.geeksfactory.opacclient.yml b/metadata/de.geeksfactory.opacclient.yml
index e7215ad051..1683df5074 100644
--- a/metadata/de.geeksfactory.opacclient.yml
+++ b/metadata/de.geeksfactory.opacclient.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Reading
 License: MIT
@@ -30,6 +32,8 @@ Description: |-
     The list of supported libraries is available on
     <a href="https://opacapp.net/en/libraries/">our website</a>.
 
+    Tracking as it comes with Sentry which cannot be disabled by the user.
+
 RepoType: git
 Repo: https://github.com/raphaelm/opacclient.git
 
diff --git a/metadata/eu.pretix.pretixdroid.yml b/metadata/eu.pretix.pretixdroid.yml
index a5d0cc4c95..995ce9d853 100644
--- a/metadata/eu.pretix.pretixdroid.yml
+++ b/metadata/eu.pretix.pretixdroid.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Multimedia
 License: GPL-3.0-only
@@ -21,6 +23,8 @@ Description: |-
     * Manually search for a ticket code or an attendee name
     * Support for usage without an internet connection
 
+    Tracking due to Sentry which cannot be disabled by the user.
+
 RepoType: git
 Repo: https://github.com/pretix/pretixdroid
 
diff --git a/metadata/eu.pretix.pretixprint.yml b/metadata/eu.pretix.pretixprint.yml
index 9b157d0e85..ff4f6a2979 100644
--- a/metadata/eu.pretix.pretixprint.yml
+++ b/metadata/eu.pretix.pretixprint.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Multimedia
 License: GPL-3.0-only
@@ -8,9 +10,9 @@ SourceCode: https://github.com/pretix/pretixprint-android
 IssueTracker: https://github.com/pretix/pretixprint-android/issues
 
 AutoName: pretixPRINT
-Description: Android app that drives the printers used by other pretix applications.
-    This contains all print logic, but no application logic. It is called by other
-    applications using system broadcasts.
+Description: |-
+    Android app that drives the printers used by other pretix applications. This contains all print logic, but no application logic. It is called by other applications using system broadcasts.
+    Tracking due to Sentry which cannot be disabled by the user.
 
 RepoType: git
 Repo: https://github.com/pretix/pretixprint-android
diff --git a/metadata/eu.pretix.pretixscan.droid.yml b/metadata/eu.pretix.pretixscan.droid.yml
index 528c5c3f98..e5ec28e740 100644
--- a/metadata/eu.pretix.pretixscan.droid.yml
+++ b/metadata/eu.pretix.pretixscan.droid.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Multimedia
 License: Apache-2.0
@@ -15,6 +17,8 @@ Description: |-
 
     This app is free software licensed under the Apache license. The source code can be found at: https://github.com/pretix/pretixscan-android
 
+    Tracking due to Sentry which cannot be disabled by the user.
+
 RepoType: git
 Repo: https://github.com/pretix/pretixscan-android
 
diff --git a/metadata/org.mozilla.klar.yml b/metadata/org.mozilla.klar.yml
index a1605f692f..6bcd09749f 100644
--- a/metadata/org.mozilla.klar.yml
+++ b/metadata/org.mozilla.klar.yml
@@ -1,3 +1,5 @@
+AntiFeatures:
+  - Tracking
 Categories:
   - Internet
 License: MPL-2.0
@@ -980,6 +982,8 @@ MaintainerNotes: |-
     Increment version code by 1 on each release. Then attach
     1 for arm64, 2 for x86 and 0 for armv7.
 
+    Tracking AntiFeature as Telemetry is opt-out. This was due to a bug and fixed with later versions we do not yet have, so should those newer versions be added the AntiFeature can be removed again.
+
 ArchivePolicy: 0 versions
 AutoUpdateMode: None
 UpdateCheckMode: None