diff --git a/server/src/main/java/com/linecorp/centraldogma/server/internal/api/sysadmin/AppIdentityRegistryService.java b/server/src/main/java/com/linecorp/centraldogma/server/internal/api/sysadmin/AppIdentityRegistryService.java
index 3c0aba973d..0131e6dc91 100644
--- a/server/src/main/java/com/linecorp/centraldogma/server/internal/api/sysadmin/AppIdentityRegistryService.java
+++ b/server/src/main/java/com/linecorp/centraldogma/server/internal/api/sysadmin/AppIdentityRegistryService.java
@@ -96,7 +96,11 @@ public Collection<AppIdentity> listAppIdentities(User loginUser) {
         if (loginUser.isSystemAdmin()) {
             return mds.getAppIdentityRegistry().appIds().values();
         } else {
-            return mds.getAppIdentityRegistry().withoutSecret().appIds().values();
+            return mds.getAppIdentityRegistry()
+                      .withoutSecret()
+                      .appIds()
+                      .values().stream().filter(appIdentity -> !appIdentity.isSystemAdmin())
+                      .collect(toImmutableList());
         }
     }
 
diff --git a/webapp/src/dogma/features/app-identity/NewAppIdentity.tsx b/webapp/src/dogma/features/app-identity/NewAppIdentity.tsx
index 452e115a44..5c2c9e0aa1 100644
--- a/webapp/src/dogma/features/app-identity/NewAppIdentity.tsx
+++ b/webapp/src/dogma/features/app-identity/NewAppIdentity.tsx
@@ -153,10 +153,7 @@ export const NewAppIdentity = () => {
                   placeholder="my-app-id"
                   {...register('appId', { pattern: APP_ID_PATTERN })}
                 />
-                <FormHelperText pl={1}>
-                  A unique identifier for the application. It must be registered with a project to access
-                  repositories.
-                </FormHelperText>
+                <FormHelperText pl={1}>App ID used to access project repositories.</FormHelperText>
                 {errors.appId && (
                   <FormErrorMessage>The first/last character must be alphanumeric</FormErrorMessage>
                 )}
@@ -173,8 +170,7 @@ export const NewAppIdentity = () => {
                     })}
                   />
                   <FormHelperText pl={1}>
-                    An identifier extracted from the client certificate for mTLS authentication, e.g., Common
-                    Name (CN) or SPIFFE ID in SAN.
+                    Certificate identifier for mTLS authentication (e.g., CN or SPIFFE ID).
                   </FormHelperText>
                   {errors.certificateId && <FormErrorMessage>Certificate ID is required</FormErrorMessage>}
                 </FormControl>
diff --git a/webapp/src/pages/app/settings/app-identities/index.tsx b/webapp/src/pages/app/settings/app-identities/index.tsx
index 882c5b6d66..f6667b6531 100644
--- a/webapp/src/pages/app/settings/app-identities/index.tsx
+++ b/webapp/src/pages/app/settings/app-identities/index.tsx
@@ -14,19 +14,13 @@ import { ActivateAppIdentity } from 'dogma/features/app-identity/ActivateAppIden
 import { DeleteAppIdentity } from 'dogma/features/app-identity/DeleteAppIdentity';
 import { Deferred } from 'dogma/common/components/Deferred';
 import SettingView from 'dogma/features/settings/SettingView';
+import { useAppSelector } from 'dogma/hooks';
 
 const AppIdentityPage = () => {
+  const systemAdmin = useAppSelector((state) => state.auth.user?.systemAdmin ?? false);
   const columnHelper = createColumnHelper<AppIdentityDto>();
   const columns = useMemo(
     () => [
-      columnHelper.accessor((row: AppIdentityDto) => row.type, {
-        cell: (info) => (
-          <Badge colorScheme={info.getValue() === 'TOKEN' ? 'purple' : 'green'}>
-            {info.getValue() === 'TOKEN' ? 'Token' : 'Certificate'}
-          </Badge>
-        ),
-        header: 'Type',
-      }),
       columnHelper.accessor((row: AppIdentityDto) => row.appId, {
         cell: (info) => {
           const identity = info.row.original;
@@ -47,10 +41,22 @@ const AppIdentityPage = () => {
         },
         header: 'Application ID',
       }),
-      columnHelper.accessor((row: AppIdentityDto) => row.systemAdmin, {
-        cell: (info) => <UserRole role={info.getValue() ? 'System Admin' : 'User'} />,
-        header: 'Level',
+      columnHelper.accessor((row: AppIdentityDto) => row.type, {
+        cell: (info) => (
+          <Badge colorScheme={info.getValue() === 'TOKEN' ? 'purple' : 'green'}>
+            {info.getValue() === 'TOKEN' ? 'Token' : 'Certificate'}
+          </Badge>
+        ),
+        header: 'Type',
       }),
+      ...(systemAdmin
+        ? [
+            columnHelper.accessor((row: AppIdentityDto) => row.systemAdmin, {
+              cell: (info) => <UserRole role={info.getValue() ? 'System Admin' : 'User'} />,
+              header: 'Level',
+            }),
+          ]
+        : []),
       columnHelper.accessor((row: AppIdentityDto) => row.creation.user, {
         cell: (info) => <Text>{info.getValue()}</Text>,
         header: 'Created By',
@@ -79,7 +85,7 @@ const AppIdentityPage = () => {
         enableSorting: false,
       }),
     ],
-    [columnHelper],
+    [columnHelper, systemAdmin],
   );
   const { data, error, isLoading } = useGetAppIdentitiesQuery();
   return (
diff --git a/webapp/tests/pages/app/settings/app-identities/index.test.tsx b/webapp/tests/pages/app/settings/app-identities/index.test.tsx
new file mode 100644
index 0000000000..5c9c6e0bb7
--- /dev/null
+++ b/webapp/tests/pages/app/settings/app-identities/index.test.tsx
@@ -0,0 +1,92 @@
+import '@testing-library/jest-dom';
+import { renderWithProviders } from 'dogma/util/test-utils';
+import AppIdentityPage from 'pages/app/settings/app-identities';
+import { AppIdentityDto } from 'dogma/features/app-identity/AppIdentity';
+import { useGetAppIdentitiesQuery } from 'dogma/features/api/apiSlice';
+
+jest.mock('dogma/features/api/apiSlice', () => ({
+  ...jest.requireActual('dogma/features/api/apiSlice'),
+  useGetAppIdentitiesQuery: jest.fn(),
+}));
+
+jest.mock('next/router', () => ({
+  useRouter: () => ({ asPath: '/app/settings/app-identities' }),
+}));
+
+const mockIdentities: AppIdentityDto[] = [
+  {
+    appId: 'app-token-1',
+    type: 'TOKEN',
+    systemAdmin: false,
+    allowGuestAccess: false,
+    creation: { user: 'user@example.com', timestamp: '2024-01-01T00:00:00Z' },
+  },
+  {
+    appId: 'app-admin-1',
+    type: 'TOKEN',
+    systemAdmin: true,
+    allowGuestAccess: false,
+    creation: { user: 'admin@example.com', timestamp: '2024-01-02T00:00:00Z' },
+  },
+];
+
+const baseAuthState = {
+  isInAnonymousMode: false,
+  csrfToken: null,
+  isLoading: false,
+  user: {
+    login: 'user',
+    name: 'Test User',
+    email: 'user@example.com',
+    roles: [],
+    systemAdmin: false,
+  },
+};
+
+describe('AppIdentityPage', () => {
+  beforeEach(() => {
+    (useGetAppIdentitiesQuery as jest.Mock).mockReturnValue({
+      data: mockIdentities,
+      error: undefined,
+      isLoading: false,
+    });
+  });
+
+  it('hides the Level column for non-system-admin users', () => {
+    const { queryByText } = renderWithProviders(<AppIdentityPage />, {
+      preloadedState: { auth: baseAuthState },
+    });
+
+    expect(queryByText('Level')).not.toBeInTheDocument();
+  });
+
+  it('shows the Level column for system-admin users', () => {
+    const { getByText } = renderWithProviders(<AppIdentityPage />, {
+      preloadedState: {
+        auth: { ...baseAuthState, user: { ...baseAuthState.user, systemAdmin: true } },
+      },
+    });
+
+    expect(getByText('Level')).toBeInTheDocument();
+  });
+
+  it('renders System Admin and User badges in the Level column for system-admin users', () => {
+    const { getByText } = renderWithProviders(<AppIdentityPage />, {
+      preloadedState: {
+        auth: { ...baseAuthState, user: { ...baseAuthState.user, systemAdmin: true } },
+      },
+    });
+
+    expect(getByText('System Admin')).toBeInTheDocument();
+    expect(getByText('User')).toBeInTheDocument();
+  });
+
+  it('displays app identities in the table', () => {
+    const { getByText } = renderWithProviders(<AppIdentityPage />, {
+      preloadedState: { auth: baseAuthState },
+    });
+
+    expect(getByText('app-token-1')).toBeInTheDocument();
+    expect(getByText('app-admin-1')).toBeInTheDocument();
+  });
+});