diff --git a/lib/reducers/master-reducer.js b/lib/reducers/master-reducer.js
--- a/lib/reducers/master-reducer.js
+++ b/lib/reducers/master-reducer.js
@@ -46,12 +46,12 @@
   incrementalStateSyncActionType,
 } from '../types/socket-types.js';
 import type { StoreOperations } from '../types/store-ops-types.js';
+import { getConfig } from '../utils/config.js';
 import { isDev } from '../utils/dev-utils.js';
 
 export default function baseReducer<N: BaseNavInfo, T: BaseAppState<N>>(
   state: T,
   action: BaseAction,
-  onStateDifference: (message: string) => mixed,
 ): { state: T, storeOperations: StoreOperations } {
   const currentUserInfo = reduceCurrentUserInfo(state.currentUserInfo, action);
   const viewerID =
@@ -74,7 +74,7 @@
       ? isStaff(state.currentUserInfo.id)
       : false;
     if (isCurrentUserStaff || isDev) {
-      onStateDifference(message);
+      getConfig().showAlert('State difference found', message);
     }
   };
 
diff --git a/native/redux/redux-debug-utils.js b/native/redux/redux-debug-utils.js
deleted file mode 100644
--- a/native/redux/redux-debug-utils.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// @flow
-
-import { Alert } from 'react-native';
-
-function onStateDifference(message: string) {
-  Alert.alert('State difference found', message);
-}
-
-export { onStateDifference };
diff --git a/native/redux/redux-setup.js b/native/redux/redux-setup.js
--- a/native/redux/redux-setup.js
+++ b/native/redux/redux-setup.js
@@ -50,7 +50,6 @@
 import { defaultState } from './default-state.js';
 import { remoteReduxDevServerConfig } from './dev-tools.js';
 import { persistConfig, setPersistor } from './persist.js';
-import { onStateDifference } from './redux-debug-utils.js';
 import type { AppState } from './state-types.js';
 import { nonUserSpecificFieldsNative } from './state-types.js';
 import { getGlobalNavContext } from '../navigation/icky-global.js';
@@ -291,11 +290,7 @@
     );
   }
 
-  const baseReducerResult = baseReducer(
-    state,
-    (action: BaseAction),
-    onStateDifference,
-  );
+  const baseReducerResult = baseReducer(state, (action: BaseAction));
   state = baseReducerResult.state;
 
   const { storeOperations } = baseReducerResult;
diff --git a/web/redux/redux-debug-utils.js b/web/redux/redux-debug-utils.js
deleted file mode 100644
--- a/web/redux/redux-debug-utils.js
+++ /dev/null
@@ -1,7 +0,0 @@
-// @flow
-
-function onStateDifference(message: string) {
-  window.alert(message);
-}
-
-export { onStateDifference };
diff --git a/web/redux/redux-setup.js b/web/redux/redux-setup.js
--- a/web/redux/redux-setup.js
+++ b/web/redux/redux-setup.js
@@ -74,7 +74,6 @@
 import { reduceCommunityPickerStore } from './community-picker-reducer.js';
 import { defaultWebState } from './default-state.js';
 import reduceNavInfo from './nav-reducer.js';
-import { onStateDifference } from './redux-debug-utils.js';
 import { reduceServicesAccessToken } from './services-access-token-reducer.js';
 import { getVisibility } from './visibility.js';
 import { activeThreadSelector } from '../selectors/nav-selectors.js';
@@ -368,7 +367,7 @@
       );
     }
 
-    const baseReducerResult = baseReducer(state, action, onStateDifference);
+    const baseReducerResult = baseReducer(state, action);
     state = baseReducerResult.state;
     storeOperations = {
       ...baseReducerResult.storeOperations,