diff --git a/homeassistant/components/mobile_app/__init__.py b/homeassistant/components/mobile_app/__init__.py
index 28f66954ca3..20a5448f2be 100644
--- a/homeassistant/components/mobile_app/__init__.py
+++ b/homeassistant/components/mobile_app/__init__.py
@@ -19,7 +19,16 @@ from homeassistant.helpers import (
 from homeassistant.helpers.storage import Store
 from homeassistant.helpers.typing import ConfigType
 
-from . import websocket_api
+# Pre-import the platforms so they get loaded when the integration
+# is imported as they are almost always going to be loaded and its
+# cheaper to import them all at once.
+from . import (  # noqa: F401
+    binary_sensor as binary_sensor_pre_import,
+    device_tracker as device_tracker_pre_import,
+    notify as notify_pre_import,
+    sensor as sensor_pre_import,
+    websocket_api,
+)
 from .const import (
     ATTR_DEVICE_NAME,
     ATTR_MANUFACTURER,