diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index a9ff0fb..79c578d 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -217,6 +217,7 @@
         private Optional<String> mEditText = Optional.empty();
         private SliceItem mSliceItem;
         private LauncherAtom.Slice mSlice;
+        private Optional<Integer> mCardinality = Optional.empty();
 
         StatsCompatLogger(Context context, ActivityContext activityContext) {
             mContext = context;
@@ -304,6 +305,12 @@
         }
 
         @Override
+        public StatsLogger withCardinality(int cardinality) {
+            this.mCardinality = Optional.of(cardinality);
+            return this;
+        }
+
+        @Override
         public void log(EventEnum event) {
             if (!Utilities.ATLEAST_R) {
                 return;
@@ -421,6 +428,7 @@
             if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
                 return;
             }
+            int cardinality = mCardinality.orElseGet(() -> getCardinality(atomInfo));
             SysUiStatsLog.write(
                     SysUiStatsLog.LAUNCHER_EVENT,
                     SysUiStatsLog.LAUNCHER_UICHANGED__ACTION__DEFAULT_ACTION /* deprecated */,
@@ -446,7 +454,7 @@
                     atomInfo.getFolderIcon().getFromLabelState().getNumber() /* fromState */,
                     atomInfo.getFolderIcon().getToLabelState().getNumber() /* toState */,
                     atomInfo.getFolderIcon().getLabelInfo() /* edittext */,
-                    getCardinality(atomInfo) /* cardinality */,
+                    cardinality /* cardinality */,
                     getFeatures(atomInfo) /* features */,
                     getSearchAttributes(atomInfo) /* searchAttributes */,
                     getAttributes(atomInfo) /* attributes */
diff --git a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
index 70c1e18..11df81a 100644
--- a/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/BaseAllAppsContainerView.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_COUNT;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_PERSONAL_TAB;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_WORK_TAB;
 
@@ -244,6 +245,10 @@
                 mWorkManager.reset();
             }
         }
+
+        mActivityContext.getStatsLogManager().logger()
+                .withCardinality(mAllAppsStore.getApps().length)
+                .log(LAUNCHER_ALLAPPS_COUNT);
     }
 
     /**
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index 22627b4..6a28990 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -598,7 +598,11 @@
         LAUNCHER_APP_ICON_MENU_SPLIT_RIGHT_BOTTOM(1199),
 
         @UiEvent(doc = "User has invoked split to left half from an app icon menu")
-        LAUNCHER_APP_ICON_MENU_SPLIT_LEFT_TOP(1200)
+        LAUNCHER_APP_ICON_MENU_SPLIT_LEFT_TOP(1200),
+
+        @UiEvent(doc = "Number of apps in A-Z list (personal and work profile)")
+        LAUNCHER_ALLAPPS_COUNT(1225),
+
         ;
 
         // ADD MORE
@@ -720,6 +724,13 @@
         }
 
         /**
+         * Sets cardinality of log message.
+         */
+        default StatsLogger withCardinality(int cardinality) {
+            return this;
+        }
+
+        /**
          * Builds the final message and logs it as {@link EventEnum}.
          */
         default void log(EventEnum event) {