diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd6bb088..912b616b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+### 5.7.0 (November 22, 2019)
+* Namespace AsyncStorage with api key to prevent cross domain contamination
+
 ### 5.6.0 (October 21, 2019)
 
 * Drop esm module from package.json to prevent it from being the default build.
diff --git a/README.md b/README.md
index 438ef299..0637bee8 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Please see our [installation guide](https://amplitude.zendesk.com/hc/en-us/artic
 [![npm version](https://badge.fury.io/js/amplitude-js.svg)](https://badge.fury.io/js/amplitude-js)
 [![Bower version](https://badge.fury.io/bo/amplitude-js.svg)](https://badge.fury.io/bo/amplitude-js)
 
-[5.6.0 - Released on October 21, 2019](https://github.com/amplitude/Amplitude-JavaScript/releases/latest)
+[5.7.0 - Released on November 22, 2019](https://github.com/amplitude/Amplitude-JavaScript/releases/latest)
 
 
 # JavaScript SDK Reference #
diff --git a/package.json b/package.json
index dcf2b803..3146c776 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "amplitude-js",
   "author": "Amplitude <support@amplitude.com>",
-  "version": "5.6.0",
+  "version": "5.7.0",
   "license": "MIT",
   "description": "Javascript library for Amplitude Analytics",
   "keywords": [
diff --git a/src/amplitude-client.js b/src/amplitude-client.js
index 607975e8..46b08eb0 100644
--- a/src/amplitude-client.js
+++ b/src/amplitude-client.js
@@ -166,47 +166,49 @@ AmplitudeClient.prototype.init = function init(apiKey, opt_userId, opt_config, o
     };
 
     if (AsyncStorage) {
-      Promise.all([
-          AsyncStorage.getItem(this._storageSuffix),
-          AsyncStorage.getItem(this.options.unsentKey),
-          AsyncStorage.getItem(this.options.unsentIdentifyKey),
-      ]).then((values) => {
-        if (values[0]) {
-          const cookieData = JSON.parse(values[0]);
-          if (cookieData) {
-            _loadCookieDataProps(this, cookieData);
+      this._migrateUnsentEvents(() => {
+        Promise.all([
+            AsyncStorage.getItem(this._storageSuffix),
+            AsyncStorage.getItem(this.options.unsentKey + this._storageSuffix),
+            AsyncStorage.getItem(this.options.unsentIdentifyKey + this._storageSuffix),
+        ]).then((values) => {
+          if (values[0]) {
+            const cookieData = JSON.parse(values[0]);
+            if (cookieData) {
+              _loadCookieDataProps(this, cookieData);
+            }
           }
-        }
-        if (this.options.saveEvents) {
-          this._unsentEvents = this._parseSavedUnsentEventsString(values[1]).concat(this._unsentEvents);
-          this._unsentIdentifys = this._parseSavedUnsentEventsString(values[2]).concat(this._unsentIdentifys);
-        }
-        if (DeviceInfo) {
-          Promise.all([
-            DeviceInfo.getCarrier(),
-            DeviceInfo.getModel(),
-            DeviceInfo.getManufacturer(),
-            DeviceInfo.getUniqueId(),
-          ]).then(values => {
-            this.deviceInfo = {
-              carrier: values[0],
-              model: values[1],
-              manufacturer: values[2]
-            };
-            initFromStorage(values[3]);
+          if (this.options.saveEvents) {
+            this._unsentEvents = this._parseSavedUnsentEventsString(values[1]).concat(this._unsentEvents);
+            this._unsentIdentifys = this._parseSavedUnsentEventsString(values[2]).concat(this._unsentIdentifys);
+          }
+          if (DeviceInfo) {
+            Promise.all([
+              DeviceInfo.getCarrier(),
+              DeviceInfo.getModel(),
+              DeviceInfo.getManufacturer(),
+              DeviceInfo.getUniqueId(),
+            ]).then(values => {
+              this.deviceInfo = {
+                carrier: values[0],
+                model: values[1],
+                manufacturer: values[2]
+              };
+              initFromStorage(values[3]);
+              this.runQueuedFunctions();
+              if (type(opt_callback) === 'function') {
+                opt_callback(this);
+              }
+            }).catch((err) => {
+              this.options.onError(err);
+            });
+          } else {
+            initFromStorage();
             this.runQueuedFunctions();
-            if (type(opt_callback) === 'function') {
-              opt_callback(this);
-            }
-          }).catch((err) => {
-            this.options.onError(err);
-          });
-        } else {
-          initFromStorage();
-          this.runQueuedFunctions();
-        }
-      }).catch((err) => {
-        this.options.onError(err);
+          }
+        }).catch((err) => {
+          this.options.onError(err);
+        });
       });
     } else {
       if (this.options.saveEvents) {
@@ -225,6 +227,34 @@ AmplitudeClient.prototype.init = function init(apiKey, opt_userId, opt_config, o
   }
 };
 
+/**
+ * @private
+ */
+AmplitudeClient.prototype._migrateUnsentEvents = function _migrateUnsentEvents(cb) {
+  Promise.all([
+      AsyncStorage.getItem(this.options.unsentKey),
+      AsyncStorage.getItem(this.options.unsentIdentifyKey),
+  ]).then((values) => {
+    if (this.options.saveEvents) {
+      var unsentEventsString = values[0];
+      var unsentIdentifyKey = values[1];
+      Promise.all([
+        AsyncStorage.setItem(this.options.unsentKey + this._storageSuffix, unsentEventsString),
+        AsyncStorage.setItem(this.options.unsentIdentifyKey + this._storageSuffix, unsentIdentifyKey),
+      ]).then(() => {
+        Promise.all([
+        AsyncStorage.removeItem(this.options.unsentKey),
+        AsyncStorage.removeItem(this.options.unsentIdentifyKey),
+        ]).then(cb);
+      }).catch((err) => {
+        this.options.onError(err);
+      });
+    }
+  }).catch((err) => {
+    this.options.onError(err);
+  });
+};
+
 /**
  * @private
  */
@@ -702,7 +732,7 @@ AmplitudeClient.prototype._saveReferrer = function _saveReferrer(referrer) {
 AmplitudeClient.prototype.saveEvents = function saveEvents() {
   try {
     if (AsyncStorage) {
-      AsyncStorage.setItem(this.options.unsentKey, JSON.stringify(this._unsentEvents));
+      AsyncStorage.setItem(this.options.unsentKey + this._storageSuffix, JSON.stringify(this._unsentEvents));
     } else {
       this._setInStorage(localStorage, this.options.unsentKey, JSON.stringify(this._unsentEvents));
     }
@@ -710,7 +740,7 @@ AmplitudeClient.prototype.saveEvents = function saveEvents() {
 
   try {
     if (AsyncStorage) {
-      AsyncStorage.setItem(this.options.unsentIdentifyKey, JSON.stringify(this._unsentIdentifys));
+      AsyncStorage.setItem(this.options.unsentIdentifyKey + this._storageSuffix, JSON.stringify(this._unsentIdentifys));
     } else {
       this._setInStorage(localStorage, this.options.unsentIdentifyKey, JSON.stringify(this._unsentIdentifys));
     }
diff --git a/src/amplitude-snippet.js b/src/amplitude-snippet.js
index 00955a4f..613d0d18 100644
--- a/src/amplitude-snippet.js
+++ b/src/amplitude-snippet.js
@@ -2,10 +2,10 @@
   var amplitude = window.amplitude || {'_q':[],'_iq':{}};
   var as = document.createElement('script');
   as.type = 'text/javascript';
-  as.integrity = 'sha384-t5vT47el2d0e6uQ1h75P9Lbzo8by6pbk+Rg41Gm4xuTGR+eDLpbWslKUtZMDe9Bj';
+  as.integrity = 'sha384-rSEVPt+HsYVwBs0EY4dB3fOcSZOW9cbAQV2CqsLFDjNbdiNyoXcGruquK0IyWxAZ';
   as.crossOrigin = 'anonymous';
   as.async = true;
-  as.src = 'https://cdn.amplitude.com/libs/amplitude-5.6.0-min.gz.js';
+  as.src = 'https://cdn.amplitude.com/libs/amplitude-5.7.0-min.gz.js';
   as.onload = function() {if(!window.amplitude.runQueuedFunctions) {console.log('[Amplitude] Error: could not load SDK');}};
   var s = document.getElementsByTagName('script')[0];
   s.parentNode.insertBefore(as, s);