diff --git a/apps.json b/apps.json
index c8063dd3..0151d964 100644
--- a/apps.json
+++ b/apps.json
@@ -1147,6 +1147,11 @@
         "state": "working",
         "url": "https://github.com/YunoHost-Apps/grocy_ynh"
     },
+    "grr": {
+        "category": "synchronization",
+        "state": "working",
+        "url": "https://github.com/YunoHost-Apps/grr_ynh"
+    },
     "guacamole": {
         "category": "system_tools",
         "level": 7,