diff --git a/native/chat/reaction-message-utils.js b/native/chat/reaction-message-utils.js
--- a/native/chat/reaction-message-utils.js
+++ b/native/chat/reaction-message-utils.js
@@ -7,7 +7,15 @@
   sendReactionMessage,
   sendReactionMessageActionTypes,
 } from 'lib/actions/message-actions';
+import { relationshipBlockedInEitherDirection } from 'lib/shared/relationship-utils';
+import { threadHasPermission } from 'lib/shared/thread-utils';
+import type {
+  RobotextMessageInfo,
+  ComposableMessageInfo,
+} from 'lib/types/message-types';
+import { threadPermissions, type ThreadInfo } from 'lib/types/thread-types';
 import type { BindServerCall, DispatchFunctions } from 'lib/utils/action-utils';
+import { useSelector } from 'lib/utils/redux-utils';
 
 import type { TooltipRoute } from '../navigation/tooltip.react';
 
@@ -78,4 +86,30 @@
   );
 }
 
-export { onPressReact };
+function useCanCreateReactionFromMessage(
+  threadInfo: ThreadInfo,
+  targetMessageInfo: ComposableMessageInfo | RobotextMessageInfo,
+): boolean {
+  const targetMessageCreatorRelationship = useSelector(
+    state =>
+      state.userStore.userInfos[targetMessageInfo.creator.id]
+        ?.relationshipStatus,
+  );
+
+  if (!targetMessageInfo.id) {
+    return false;
+  }
+
+  const creatorRelationshipHasBlock =
+    targetMessageCreatorRelationship &&
+    relationshipBlockedInEitherDirection(targetMessageCreatorRelationship);
+
+  const hasPermission = threadHasPermission(
+    threadInfo,
+    threadPermissions.VOICED,
+  );
+
+  return hasPermission && !creatorRelationshipHasBlock;
+}
+
+export { onPressReact, useCanCreateReactionFromMessage };