diff --git a/src/sakia/data/entities/__init__.py b/src/sakia/data/entities/__init__.py
index cc26e0512cac040a8f9ea0d2f2c156218c094504..34c5913afe57c061dd7f5fd5718f5c859db718c8 100644
--- a/src/sakia/data/entities/__init__.py
+++ b/src/sakia/data/entities/__init__.py
@@ -5,3 +5,4 @@ from .transaction import Transaction
 from .node import Node
 from .connection import Connection
 from .user_parameters import UserParameters
+from .app_data import AppData
diff --git a/src/sakia/data/entities/app_data.py b/src/sakia/data/entities/app_data.py
new file mode 100644
index 0000000000000000000000000000000000000000..10316f4b787ffd4f2df50a0a7a364ccf8ed70dd6
--- /dev/null
+++ b/src/sakia/data/entities/app_data.py
@@ -0,0 +1,6 @@
+import attr
+
+
+@attr.s()
+class AppData:
+    profiles = attr.ib(factory=list)
diff --git a/src/sakia/data/files/app_data.py b/src/sakia/data/files/app_data.py
new file mode 100644
index 0000000000000000000000000000000000000000..79b3fdb6ac68fbdec23e8ed4e767f3b6462ff30a
--- /dev/null
+++ b/src/sakia/data/files/app_data.py
@@ -0,0 +1,28 @@
+import attr
+import json
+from ..entities import AppData
+
+
+@attr.s(frozen=True)
+class AppDataFile:
+    """
+    The repository for AppData
+    """
+    _file = attr.ib()
+
+    def save(self, app_data):
+        """
+        Commit a app_data to the database
+        :param sakia.data.entities.AppData app_data: the app_data to commit
+        """
+        with open(self._file, 'w') as outfile:
+            json.dump(attr.asdict(app_data), outfile, indent=4)
+
+    def load(self):
+        """
+        Update an existing app_data in the database
+        :param sakia.data.entities.AppData app_data: the app_data to update
+        """
+        with open(self._file, 'r') as json_data:
+            app_data = AppData(**json.load(json_data))
+        return app_data
diff --git a/src/sakia/data/files/user_parameters.py b/src/sakia/data/files/user_parameters.py
index 119fee4da3258701cde9abe097048b79928fbc79..ec161a1d0656181f7a0d3853d7bbedf29429de6b 100644
--- a/src/sakia/data/files/user_parameters.py
+++ b/src/sakia/data/files/user_parameters.py
@@ -25,4 +25,4 @@ class UserParametersFile:
         """
         with open(self._file, 'r') as json_data:
             user_parameters = UserParameters(**json.load(json_data))
-        return user_parameters
\ No newline at end of file
+        return user_parameters