diff --git a/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java b/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
index cf909b282f..638d98991a 100644
--- a/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
+++ b/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
@@ -18,11 +18,16 @@
  */
 
 
+import android.os.Bundle;
+
 import com.facebook.react.bridge.Arguments;
 import com.facebook.react.bridge.Promise;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactMethod;
 import com.facebook.react.bridge.ReadableMap;
+import com.google.firebase.analytics.FirebaseAnalytics;
+
+import java.util.ArrayList;
 
 import javax.annotation.Nullable;
 
@@ -39,7 +44,7 @@ public class ReactNativeFirebaseAnalyticsModule extends ReactNativeFirebaseModul
 
   @ReactMethod
   public void logEvent(String name, @Nullable ReadableMap params, Promise promise) {
-    module.logEvent(name, Arguments.toBundle(params)).addOnCompleteListener(task -> {
+    module.logEvent(name, toBundle(params)).addOnCompleteListener(task -> {
       if (task.isSuccessful()) {
         promise.resolve(task.getResult());
       } else {
@@ -114,4 +119,19 @@ public void resetAnalyticsData(Promise promise) {
       }
     });
   }
+
+  private Bundle toBundle(ReadableMap readableMap) {
+    Bundle bundle = Arguments.toBundle(readableMap);
+    if (bundle == null) {
+      return null;
+    }
+    ArrayList itemsArray = (ArrayList) bundle.getSerializable(FirebaseAnalytics.Param.ITEMS);
+    for (Object item : itemsArray != null ? itemsArray : new ArrayList()) {
+      if (item instanceof Bundle && ((Bundle) item).containsKey(FirebaseAnalytics.Param.QUANTITY)) {
+        double number = ((Bundle) item).getDouble(FirebaseAnalytics.Param.QUANTITY);
+        ((Bundle) item).putInt(FirebaseAnalytics.Param.QUANTITY, (int) number);
+      }
+    }
+    return bundle;
+  }
 }
diff --git a/packages/analytics/e2e/analytics.e2e.js b/packages/analytics/e2e/analytics.e2e.js
index 6b3e25bb6c..e2b65ea467 100644
--- a/packages/analytics/e2e/analytics.e2e.js
+++ b/packages/analytics/e2e/analytics.e2e.js
@@ -141,6 +141,7 @@ describe('analytics()', () => {
             item_name: 'foo',
             item_category: 'foo',
             item_location_id: 'foo',
+            quantity: 5,
           },
         ],
         value: 123,
diff --git a/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m b/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
index 1507a532d9..74d12dad13 100644
--- a/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
+++ b/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
@@ -44,7 +44,7 @@ - (dispatch_queue_t)methodQueue {
         rejecter:
         (RCTPromiseRejectBlock) reject) {
     @try {
-      [FIRAnalytics logEventWithName:name parameters:params];
+      [FIRAnalytics logEventWithName:name parameters:[self cleanJavascriptParams:params]];
     } @catch (NSException *exception) {
       return [RNFBSharedUtils rejectPromiseWithExceptionDict:reject exception:exception];
     }
@@ -135,4 +135,23 @@ - (dispatch_queue_t)methodQueue {
     return resolve([NSNull null]);
   }
 
+#pragma mark -
+#pragma mark Private methods
+
+  - (NSDictionary *)cleanJavascriptParams:(NSDictionary *)params {
+    NSMutableDictionary *newParams = [params mutableCopy];
+    if (newParams[kFIRParameterItems]) {
+      NSMutableArray *newItems = [NSMutableArray array];
+      [(NSArray *)newParams[kFIRParameterItems] enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+        NSMutableDictionary *item = [obj mutableCopy];
+        if (item[kFIRParameterQuantity]) {
+          item[kFIRParameterQuantity] = @([item[kFIRParameterQuantity] integerValue]);
+        }
+        [newItems addObject:[item copy]];
+      }];
+      newParams[kFIRParameterItems] = [newItems copy];
+    }
+    return [newParams copy];
+  }
+
 @end
diff --git a/packages/analytics/lib/index.d.ts b/packages/analytics/lib/index.d.ts
index 06bf32ebb9..dcb9289e7c 100644
--- a/packages/analytics/lib/index.d.ts
+++ b/packages/analytics/lib/index.d.ts
@@ -99,7 +99,12 @@ export namespace FirebaseAnalyticsTypes {
      * The Item variant.
      */
     item_variant?: string;
+    /**
+     * The Item quantity.
+     */
+    quantity?: number;
   }
+
   export interface AddPaymentInfoEventParameters {
     items?: Item[];
     /**
diff --git a/packages/analytics/lib/structs.js b/packages/analytics/lib/structs.js
index 87f7d54603..a1037b8f3d 100644
--- a/packages/analytics/lib/structs.js
+++ b/packages/analytics/lib/structs.js
@@ -28,6 +28,7 @@ const Item = struct({
   item_list_name: 'string?',
   item_location_id: 'string?',
   item_variant: 'string?',
+  quantity: 'number?',
 });
 
 export const ScreenView = struct({