diff --git a/desktop/app/src/server/devices/ios/iOSContainerUtility.tsx b/desktop/app/src/server/devices/ios/iOSContainerUtility.tsx
index 3839a90a6..6f5f43fd7 100644
--- a/desktop/app/src/server/devices/ios/iOSContainerUtility.tsx
+++ b/desktop/app/src/server/devices/ios/iOSContainerUtility.tsx
@@ -10,7 +10,6 @@
 import React from 'react';
 import {Mutex} from 'async-mutex';
 import {exec as unsafeExec, Output} from 'promisify-child-process';
-import {killOrphanedInstrumentsProcesses} from '../../utils/processCleanup';
 import {reportPlatformFailures} from '../../../utils/metrics';
 import {promises, constants} from 'fs';
 import memoize from 'lodash.memoize';
@@ -162,14 +161,14 @@ async function targets(
 
   // Not all users have idb installed because you can still use
   // Flipper with Simulators without it.
-  // But idb is MUCH more CPU efficient than instruments, so
-  // when installed, use it.
+  // But idb is MUCH more CPU efficient than xcrun, so
+  // when installed, use it. This still holds true
+  // with the move from instruments to xcrun.
   // TODO: Move idb availability check up.
   if (await memoize(isAvailable)(idbPath)) {
     return await idbListTargets(idbPath);
   } else {
-    await killOrphanedInstrumentsProcesses();
-    return safeExec('instruments -s devices')
+    return safeExec('xcrun xctrace list devices')
       .then(({stdout}) =>
         stdout!
           .toString()
@@ -184,7 +183,7 @@ async function targets(
           }),
       )
       .catch((e) => {
-        console.warn('Failed to query instruments:', e);
+        console.warn('Failed to query for devices using xctrace:', e);
         return [];
       });
   }
diff --git a/desktop/app/src/server/utils/processCleanup.tsx b/desktop/app/src/server/utils/processCleanup.tsx
deleted file mode 100644
index 75bb33032..000000000
--- a/desktop/app/src/server/utils/processCleanup.tsx
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- */
-
-import {exec} from 'promisify-child-process';
-import {notNull} from '../utils/typeUtils';
-import {kill} from 'process';
-
-// Kills any orphaned Instruments processes belonging to the user.
-//
-// In some cases, we've seen interactions between Instruments and the iOS
-// simulator that cause hung instruments and DTServiceHub processes. If
-// enough instances pile up, the host machine eventually becomes
-// unresponsive. Until the underlying issue is resolved, manually kill any
-// orphaned instances (where the parent process has died and PPID is 1)
-// before launching another instruments run.
-export async function killOrphanedInstrumentsProcesses() {
-  const result = await exec('ps -e -o user,ppid,pid,comm');
-  result.stdout
-    ?.toString()
-    .split('\n')
-    .filter(notNull)
-    .map((a) => /^(\S+)\s+1\s+(\d+)\s+(.+)$/.exec(a))
-    .filter(notNull)
-    .filter((m) => m[1] === process.env.USER)
-    .filter(
-      (m) =>
-        m[3] &&
-        ['/instruments', '/DTServiceHub'].some((name) => m[3].endsWith(name)),
-    )
-    .forEach((m) => {
-      const pid = m[2];
-      console.debug(`Killing orphaned Instruments process: ${pid}`);
-      kill(parseInt(pid, 10), 'SIGKILL');
-    });
-}