diff --git a/mobly/controllers/android_device_lib/snippet_client.py b/mobly/controllers/android_device_lib/snippet_client.py
index cc6e74a..218ef46 100644
--- a/mobly/controllers/android_device_lib/snippet_client.py
+++ b/mobly/controllers/android_device_lib/snippet_client.py
@@ -39,8 +39,9 @@
 # existing clients.
 _PROTOCOL_MINOR_VERSION = 0
 
-_LAUNCH_CMD = ('%s am instrument -w -e action start %s/' +
-               _INSTRUMENTATION_RUNNER_PACKAGE)
+_LAUNCH_CMD = (
+    '{shell_cmd} am instrument --user {user} -w -e action start {snippet_package}/'
+    + _INSTRUMENTATION_RUNNER_PACKAGE)
 
 _STOP_CMD = ('am instrument -w -e action stop %s/' +
              _INSTRUMENTATION_RUNNER_PACKAGE)
@@ -155,7 +156,9 @@
         self.log.info('Launching snippet apk %s with protocol %d.%d',
                       self.package, _PROTOCOL_MAJOR_VERSION,
                       _PROTOCOL_MINOR_VERSION)
-        cmd = _LAUNCH_CMD % (persists_shell_cmd, self.package)
+        cmd = _LAUNCH_CMD.format(shell_cmd=persists_shell_cmd,
+                                 user=self._adb.current_user_id,
+                                 snippet_package=self.package)
         start_time = time.time()
         self._proc = self._do_start_app(cmd)
 
@@ -259,11 +262,13 @@
         self._event_client.connect()
 
     def _check_app_installed(self):
-        # Check that the Mobly Snippet app is installed.
-        out = self._adb.shell('pm list package')
+        # Check that the Mobly Snippet app is installed for the current user.
+        user_id = self._adb.current_user_id
+        out = self._adb.shell('pm list package --user %s' % user_id)
         if not utils.grep('^package:%s$' % self.package, out):
-            raise AppStartPreCheckError(self._ad,
-                                        '%s is not installed.' % self.package)
+            raise AppStartPreCheckError(
+                self._ad,
+                '%s is not installed for user %s.' % (self.package, user_id))
         # Check that the app is instrumented.
         out = self._adb.shell('pm list instrumentation')
         matched_out = utils.grep(
@@ -279,11 +284,12 @@
         # Check that the instrumentation target is installed if it's not the
         # same as the snippet package.
         if target_name != self.package:
-            out = self._adb.shell('pm list package')
+            out = self._adb.shell('pm list package --user %s' % user_id)
             if not utils.grep('^package:%s$' % target_name, out):
                 raise AppStartPreCheckError(
-                    self._ad, 'Instrumentation target %s is not installed.' %
-                    target_name)
+                    self._ad,
+                    'Instrumentation target %s is not installed for user %s.' %
+                    (target_name, user_id))
 
     def _do_start_app(self, launch_cmd):
         adb_cmd = [adb.ADB]
diff --git a/tests/mobly/controllers/android_device_lib/snippet_client_test.py b/tests/mobly/controllers/android_device_lib/snippet_client_test.py
index d60ee46..fa5b9fb 100755
--- a/tests/mobly/controllers/android_device_lib/snippet_client_test.py
+++ b/tests/mobly/controllers/android_device_lib/snippet_client_test.py
@@ -28,6 +28,7 @@
 MOCK_PACKAGE_NAME = 'some.package.name'
 MOCK_MISSING_PACKAGE_NAME = 'not.installed'
 JSONRPC_BASE_CLASS = 'mobly.controllers.android_device_lib.jsonrpc_client_base.JsonRpcClientBase'
+MOCK_USER_ID = 0
 
 
 def get_print_function_name():
@@ -70,8 +71,9 @@
     def test_check_app_installed_fail_target_not_installed(self):
         sc = self._make_client(
             mock_android_device.MockAdbProxy(instrumented_packages=[(
-                MOCK_PACKAGE_NAME, snippet_client.
-                _INSTRUMENTATION_RUNNER_PACKAGE, MOCK_MISSING_PACKAGE_NAME)]))
+                MOCK_PACKAGE_NAME,
+                snippet_client._INSTRUMENTATION_RUNNER_PACKAGE,
+                MOCK_MISSING_PACKAGE_NAME)]))
         expected_msg = ('.* Instrumentation target %s is not installed.' %
                         MOCK_MISSING_PACKAGE_NAME)
         with self.assertRaisesRegex(snippet_client.AppStartPreCheckError,
@@ -314,8 +316,8 @@
         client = self._make_client()
         client._adb.shell = mock.Mock(return_value=b'setsid')
         client.start_app_and_connect()
-        cmd_setsid = '%s am instrument -w -e action start %s/%s' % (
-            snippet_client._SETSID_COMMAND, MOCK_PACKAGE_NAME,
+        cmd_setsid = '%s am instrument --user %s -w -e action start %s/%s' % (
+            snippet_client._SETSID_COMMAND, MOCK_USER_ID, MOCK_PACKAGE_NAME,
             snippet_client._INSTRUMENTATION_RUNNER_PACKAGE)
         mock_do_start_app.assert_has_calls([mock.call(cmd_setsid)])
 
@@ -323,8 +325,8 @@
         client = self._make_client()
         client._adb.shell = _mocked_shell
         client.start_app_and_connect()
-        cmd_nohup = '%s am instrument -w -e action start %s/%s' % (
-            snippet_client._NOHUP_COMMAND, MOCK_PACKAGE_NAME,
+        cmd_nohup = '%s am instrument --user %s -w -e action start %s/%s' % (
+            snippet_client._NOHUP_COMMAND, MOCK_USER_ID, MOCK_PACKAGE_NAME,
             snippet_client._INSTRUMENTATION_RUNNER_PACKAGE)
         mock_do_start_app.assert_has_calls(
             [mock.call(cmd_setsid),
@@ -335,8 +337,9 @@
             side_effect=adb.AdbError('cmd', 'stdout', 'stderr', 'ret_code'))
         client = self._make_client()
         client.start_app_and_connect()
-        cmd_not_persist = ' am instrument -w -e action start %s/%s' % (
-            MOCK_PACKAGE_NAME, snippet_client._INSTRUMENTATION_RUNNER_PACKAGE)
+        cmd_not_persist = ' am instrument --user %s -w -e action start %s/%s' % (
+            MOCK_USER_ID, MOCK_PACKAGE_NAME,
+            snippet_client._INSTRUMENTATION_RUNNER_PACKAGE)
         mock_do_start_app.assert_has_calls([
             mock.call(cmd_setsid),
             mock.call(cmd_nohup),
@@ -447,11 +450,13 @@
 
     def _make_client(self, adb_proxy=None):
         adb_proxy = adb_proxy or mock_android_device.MockAdbProxy(
-            instrumented_packages=[(MOCK_PACKAGE_NAME, snippet_client.
-                                    _INSTRUMENTATION_RUNNER_PACKAGE,
-                                    MOCK_PACKAGE_NAME)])
+            instrumented_packages=[(
+                MOCK_PACKAGE_NAME,
+                snippet_client._INSTRUMENTATION_RUNNER_PACKAGE,
+                MOCK_PACKAGE_NAME)])
         ad = mock.Mock()
         ad.adb = adb_proxy
+        ad.adb.current_user_id = MOCK_USER_ID
         ad.build_info = {
             'build_version_codename':
             ad.adb.getprop('ro.build.version.codename'),