diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e161e7a..eda3709 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -13,8 +13,13 @@ Each listed software has to meet following criteria:
 
 F-Droid provides good [guidance](https://f-droid.org/docs/Anti-Features/) on *Anti-Features*.
 
-If the packages is available on [**F-Droid**](https://f-droid.org/) it can be linked using the `https://f-droid.org/app/<APP>` URL. If not yet, it's a good idea to promote F-Droid submission to the projects developer.
-
-Please do not submit third party F-Droid repositories.
-
 Entries are sorted alphabetically.
+
+## F-Droid links
+
+If a package is available on [**F-Droid**](https://f-droid.org/) it can be linked using the `https://f-droid.org/app/<App ID>` URL.
+If not yet, it's a good idea to promote F-Droid submission to the projects developer.
+
+[**IzzyOnDroid**](https://apt.izzysoft.de/fdroid/) can be linked using `https://apt.izzysoft.de/fdroid/index/apk/<App ID>` only, if the package is *not* available on F-Droid and *not* marked by *NonFreeComp*.
+
+Please do not submit other F-Droid repositories.