diff --git a/homeassistant/components/mobile_app/entity.py b/homeassistant/components/mobile_app/entity.py
index 1cac62ce964..f1f7b592621 100644
--- a/homeassistant/components/mobile_app/entity.py
+++ b/homeassistant/components/mobile_app/entity.py
@@ -17,6 +17,7 @@ from .const import (
     ATTR_SENSOR_ENTITY_CATEGORY,
     ATTR_SENSOR_ICON,
     ATTR_SENSOR_STATE,
+    ATTR_SENSOR_STATE_CLASS,
     SIGNAL_SENSOR_UPDATE,
 )
 from .helpers import device_info
@@ -44,6 +45,7 @@ class MobileAppEntity(RestoreEntity):
         """Update the entity from the config."""
         config = self._config
         self._attr_device_class = config.get(ATTR_SENSOR_DEVICE_CLASS)
+        self._attr_state_class = config.get(ATTR_SENSOR_STATE_CLASS)
         self._attr_extra_state_attributes = config[ATTR_SENSOR_ATTRIBUTES]
         self._attr_icon = config[ATTR_SENSOR_ICON]
         self._attr_entity_category = config.get(ATTR_SENSOR_ENTITY_CATEGORY)