diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/Contents.json b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..9201067
--- /dev/null
+++ b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,15 @@
+{
+  "images" : [
+    { "idiom" : "mac", "size" : "16x16",   "scale" : "1x", "filename" : "icon_16x16.png" },
+    { "idiom" : "mac", "size" : "16x16",   "scale" : "2x", "filename" : "icon_16x16@2x.png" },
+    { "idiom" : "mac", "size" : "32x32",   "scale" : "1x", "filename" : "icon_32x32.png" },
+    { "idiom" : "mac", "size" : "32x32",   "scale" : "2x", "filename" : "icon_32x32@2x.png" },
+    { "idiom" : "mac", "size" : "128x128", "scale" : "1x", "filename" : "icon_128x128.png" },
+    { "idiom" : "mac", "size" : "128x128", "scale" : "2x", "filename" : "icon_128x128@2x.png" },
+    { "idiom" : "mac", "size" : "256x256", "scale" : "1x", "filename" : "icon_256x256.png" },
+    { "idiom" : "mac", "size" : "256x256", "scale" : "2x", "filename" : "icon_256x256@2x.png" },
+    { "idiom" : "mac", "size" : "512x512", "scale" : "1x", "filename" : "icon_512x512.png" },
+    { "idiom" : "mac", "size" : "512x512", "scale" : "2x", "filename" : "icon_512x512@2x.png" }
+  ],
+  "info" : { "author" : "xcode", "version" : 1 }
+}
diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_128x128.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_128x128.png
new file mode 100644
index 0000000..c6fbc15
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_128x128@2x.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_128x128@2x.png
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index 0000000..925115c
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_16x16.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_16x16.png
new file mode 100644
index 0000000..bde196d
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_16x16@2x.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_16x16@2x.png
new file mode 100644
index 0000000..dfc670f
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_256x256.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_256x256.png
new file mode 100644
index 0000000..925115c
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_256x256@2x.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_256x256@2x.png
new file mode 100644
index 0000000..b9458ff
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_32x32.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_32x32.png
new file mode 100644
index 0000000..dfc670f
Binary files /dev/null and b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_32x32.png differ
diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_32x32@2x.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_32x32@2x.png
new file mode 100644
index 0000000..2c02615
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diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_512x512.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_512x512.png
new file mode 100644
index 0000000..b9458ff
Binary files /dev/null and b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_512x512.png differ
diff --git a/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_512x512@2x.png b/apps/apple/CascadeMac/Assets.xcassets/AppIcon.appiconset/icon_512x512@2x.png
new file mode 100644
index 0000000..be76288
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diff --git a/apps/apple/CascadeWatch/Assets.xcassets/AppIcon.appiconset/Contents.json b/apps/apple/CascadeWatch/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..6f77113
--- /dev/null
+++ b/apps/apple/CascadeWatch/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,6 @@
+{
+  "images" : [
+    { "idiom" : "universal", "platform" : "watchos", "size" : "1024x1024", "filename" : "icon_1024.png" }
+  ],
+  "info" : { "author" : "xcode", "version" : 1 }
+}
diff --git a/apps/apple/CascadeWatch/Assets.xcassets/AppIcon.appiconset/icon_1024.png b/apps/apple/CascadeWatch/Assets.xcassets/AppIcon.appiconset/icon_1024.png
new file mode 100644
index 0000000..8fcede0
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diff --git a/apps/apple/CascadeiOS/Assets.xcassets/AppIcon.appiconset/Contents.json b/apps/apple/CascadeiOS/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..de3d626
--- /dev/null
+++ b/apps/apple/CascadeiOS/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,6 @@
+{
+  "images" : [
+    { "idiom" : "universal", "platform" : "ios", "size" : "1024x1024", "filename" : "icon_1024.png" }
+  ],
+  "info" : { "author" : "xcode", "version" : 1 }
+}
diff --git a/apps/apple/CascadeiOS/Assets.xcassets/AppIcon.appiconset/icon_1024.png b/apps/apple/CascadeiOS/Assets.xcassets/AppIcon.appiconset/icon_1024.png
new file mode 100644
index 0000000..8fcede0
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diff --git a/apps/apple/project.yml b/apps/apple/project.yml
index cdb7282..6b8b8d9 100644
--- a/apps/apple/project.yml
+++ b/apps/apple/project.yml
@@ -63,6 +63,7 @@ targets:
         PRODUCT_BUNDLE_IDENTIFIER: page.stephens.cascade
         CODE_SIGN_ENTITLEMENTS: CascadeMac/Cascade.entitlements
         ENABLE_HARDENED_RUNTIME: YES
+        ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         LD_RUNPATH_SEARCH_PATHS: "$(inherited) @executable_path/../Frameworks"
         OTHER_LDFLAGS: "$(inherited) -L$(SRCROOT)/build/rust/macos -lcascade_uniffi"
         SWIFT_INCLUDE_PATHS: "$(SRCROOT)/CascadeShared/Generated"
@@ -109,6 +110,7 @@ targets:
       base:
         PRODUCT_BUNDLE_IDENTIFIER: page.stephens.cascade
         CODE_SIGN_ENTITLEMENTS: CascadeiOS/Cascade.entitlements
+        ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         TARGETED_DEVICE_FAMILY: "1,2"          # iPhone + iPad
         # Per-SDK lookup so the same xcodeproj builds for both on-device and
         # the simulator (which on Apple Silicon is an arm64 simulator slice).
@@ -159,6 +161,7 @@ targets:
       base:
         PRODUCT_BUNDLE_IDENTIFIER: page.stephens.cascade.watchkitapp
         CODE_SIGN_ENTITLEMENTS: CascadeWatch/Cascade.entitlements
+        ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         TARGETED_DEVICE_FAMILY: "4"            # watchOS
         WATCHOS_DEPLOYMENT_TARGET: "10.0"
         # The watch is paired to the iPhone app via shared bundle ID prefix +