diff --git a/NucleicRemote/NucleicRemote/NucleicRemoteApp.swift b/NucleicRemote/NucleicRemote/NucleicRemoteApp.swift
index 647d985..7a5fc6f 100644
--- a/NucleicRemote/NucleicRemote/NucleicRemoteApp.swift
+++ b/NucleicRemote/NucleicRemote/NucleicRemoteApp.swift
@@ -48,6 +48,8 @@ struct RootView: View {
         VStack(spacing: 0) {
             // The same non-release warning strip the Mac window carries (dev/canary/beta/rc).
             BuildBanner()
+            // A demo-mode strip so sample data is never mistaken for a live Mac connection.
+            DemoBanner()
             Group {
                 if store.isPaired {
                     TabView(selection: $tab) {