diff --git a/nc_py_api/apps.py b/nc_py_api/apps.py
index 7fe5a2d7..7aaf70a1 100644
--- a/nc_py_api/apps.py
+++ b/nc_py_api/apps.py
@@ -1,7 +1,6 @@
 """Nextcloud API for working with applications."""
 
 import dataclasses
-import datetime
 
 from ._misc import require_capabilities
 from ._session import AsyncNcSessionBasic, NcSessionBasic
@@ -34,18 +33,6 @@ def enabled(self) -> bool:
         """Flag indicating if the application enabled."""
         return bool(self._raw_data["enabled"])
 
-    @property
-    def last_check_time(self) -> datetime.datetime:
-        """Time of the last successful application check."""
-        return datetime.datetime.utcfromtimestamp(int(self._raw_data["last_check_time"])).replace(
-            tzinfo=datetime.timezone.utc
-        )
-
-    @property
-    def system(self) -> bool:
-        """**DEPRECATED** Flag indicating if the application is a system application."""
-        return True
-
     def __repr__(self):
         return f"<{self.__class__.__name__} id={self.app_id}, ver={self.version}>"
 
diff --git a/tests/actual_tests/apps_test.py b/tests/actual_tests/apps_test.py
index 21d7b3f7..48442c91 100644
--- a/tests/actual_tests/apps_test.py
+++ b/tests/actual_tests/apps_test.py
@@ -1,5 +1,3 @@
-import datetime
-
 import pytest
 
 from nc_py_api.apps import ExAppInfo
@@ -121,7 +119,6 @@ def _test_ex_app_get_list(ex_apps: list[ExAppInfo], enabled_ex_apps: list[ExAppI
         assert isinstance(app.name, str)
         assert isinstance(app.version, str)
         assert isinstance(app.enabled, bool)
-        assert isinstance(app.last_check_time, datetime.datetime)
         assert str(app).find("id=") != -1 and str(app).find("ver=") != -1