diff --git a/maestro-ios-driver/src/main/resources/driver-iPhoneSimulator/maestro-driver-ios-config.xctestrun b/maestro-ios-driver/src/main/resources/driver-iPhoneSimulator/maestro-driver-ios-config.xctestrun
index 1a72105f0e..03cfc40c9c 100644
--- a/maestro-ios-driver/src/main/resources/driver-iPhoneSimulator/maestro-driver-ios-config.xctestrun
+++ b/maestro-ios-driver/src/main/resources/driver-iPhoneSimulator/maestro-driver-ios-config.xctestrun
@@ -78,7 +78,7 @@
 			<string>ViewHierarchyHandlerTests/testViewHierarchyHandlerReturnsNonEmptyHierarchy()</string>
 		</array>
 		<key>SystemAttachmentLifetime</key>
-		<string>deleteOnSuccess</string>
+		<string>keepNever</string>
 		<key>TestBundlePath</key>
 		<string>__TESTHOST__/PlugIns/maestro-driver-iosUITests.xctest</string>
 		<key>TestHostBundleIdentifier</key>
@@ -136,7 +136,7 @@
 		<key>UITargetAppPerformanceAntipatternCheckerEnabled</key>
 		<true/>
 		<key>UserAttachmentLifetime</key>
-		<string>deleteOnSuccess</string>
+		<string>keepNever</string>
 	</dict>
 </dict>
 </plist>
diff --git a/maestro-ios-driver/src/main/resources/driver-iphoneos/maestro-driver-ios-config.xctestrun b/maestro-ios-driver/src/main/resources/driver-iphoneos/maestro-driver-ios-config.xctestrun
index 4fd926712e..95b4a778f6 100644
--- a/maestro-ios-driver/src/main/resources/driver-iphoneos/maestro-driver-ios-config.xctestrun
+++ b/maestro-ios-driver/src/main/resources/driver-iphoneos/maestro-driver-ios-config.xctestrun
@@ -66,7 +66,7 @@
 			<string>ViewHierarchyHandlerTests/testViewHierarchyHandlerReturnsNonEmptyHierarchy()</string>
 		</array>
 		<key>SystemAttachmentLifetime</key>
-		<string>deleteOnSuccess</string>
+		<string>keepNever</string>
 		<key>TestBundlePath</key>
 		<string>__TESTHOST__/PlugIns/maestro-driver-iosUITests.xctest</string>
 		<key>TestHostBundleIdentifier</key>
@@ -98,7 +98,7 @@
 		<key>UITargetAppPath</key>
 		<string>__TESTROOT__/Debug-iphoneos/maestro-driver-ios.app</string>
 		<key>UserAttachmentLifetime</key>
-		<string>deleteOnSuccess</string>
+		<string>keepNever</string>
 	</dict>
 </dict>
 </plist>
diff --git a/maestro-ios-xctest-runner/maestro-driver-ios.xcodeproj/xcshareddata/xcschemes/maestro-driver-ios.xcscheme b/maestro-ios-xctest-runner/maestro-driver-ios.xcodeproj/xcshareddata/xcschemes/maestro-driver-ios.xcscheme
index 438a99b961..156383a802 100644
--- a/maestro-ios-xctest-runner/maestro-driver-ios.xcodeproj/xcshareddata/xcschemes/maestro-driver-ios.xcscheme
+++ b/maestro-ios-xctest-runner/maestro-driver-ios.xcodeproj/xcshareddata/xcschemes/maestro-driver-ios.xcscheme
@@ -22,11 +22,20 @@
          </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
+   <!--
+      The runner's one test never succeeds (Maestro stops it at session end), so
+      the default deleteOnSuccess kept every screenshot XCTest took while Maestro
+      polled the screen on the device, in testmanagerd's container, where nothing
+      on the host can delete it: ~240 full-size PNGs a minute on a real iPhone.
+      keepNever lands in the built .xctestrun as System/UserAttachmentLifetime.
+   -->
    <TestAction
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      systemAttachmentLifetime = "keepNever"
+      userAttachmentLifetime = "keepNever">
       <Testables>
          <TestableReference
             skipped = "NO">