diff --git a/config.xml b/config.xml
index 0a377a9..dacb371 100644
--- a/config.xml
+++ b/config.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget id="com.coregrade.users" version="10.0.14" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget id="com.coregrade.users" version="10.0.15" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <name>CoreGrade</name>
     <description>Intelligent Learning Platform.</description>
     <author email="support@coregrade.com" href="https://www.coregrade.com/">CoreGrade</author>
diff --git a/package-lock.json b/package-lock.json
index 7791654..4261af4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -89,6 +89,29 @@
         "worker-plugin": "3.2.0"
       },
       "dependencies": {
+        "cacache": {
+          "version": "12.0.2",
+          "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.2.tgz",
+          "integrity": "sha512-ifKgxH2CKhJEg6tNdAwziu6Q33EvuG26tYcda6PT3WKisZcYDXsnEdnRv67Po3yCzFfaSoMjGZzJyD2c3DT1dg==",
+          "dev": true,
+          "requires": {
+            "bluebird": "^3.5.5",
+            "chownr": "^1.1.1",
+            "figgy-pudding": "^3.5.1",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.1.15",
+            "infer-owner": "^1.0.3",
+            "lru-cache": "^5.1.1",
+            "mississippi": "^3.0.0",
+            "mkdirp": "^0.5.1",
+            "move-concurrently": "^1.0.1",
+            "promise-inflight": "^1.0.1",
+            "rimraf": "^2.6.3",
+            "ssri": "^6.0.1",
+            "unique-filename": "^1.1.1",
+            "y18n": "^4.0.0"
+          }
+        },
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           "version": "3.6.4",
           "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.6.4.tgz",
@@ -2058,6 +2081,21 @@
         "@types/cordova": "^0.0.34"
       }
     },
+    "@ionic-native/onesignal": {
+      "version": "5.23.0",
+      "resolved": "https://registry.npmjs.org/@ionic-native/onesignal/-/onesignal-5.23.0.tgz",
+      "integrity": "sha512-KLZIxYUhs2NUXnpz/1zLb/ifpzYdqygkYgw3YaxWRGjnzLpJ6rLNwhmAkWY5L5B3gWFC1qWFrImeSwRvQtnsqg==",
+      "requires": {
+        "@types/cordova": "^0.0.34"
+      },
+      "dependencies": {
+        "@types/cordova": {
+          "version": "0.0.34",
+          "resolved": "https://registry.npmjs.org/@types/cordova/-/cordova-0.0.34.tgz",
+          "integrity": "sha1-6nrd907Ow9dimCegw54smt3HPQQ="
+        }
+      }
+    },
     "@ionic-native/splash-screen": {
       "version": "5.22.0",
       "resolved": "https://registry.npmjs.org/@ionic-native/splash-screen/-/splash-screen-5.22.0.tgz",
@@ -3338,9 +3376,9 @@
       "dev": true
     },
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-      "version": "12.0.2",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.2.tgz",
-      "integrity": "sha512-ifKgxH2CKhJEg6tNdAwziu6Q33EvuG26tYcda6PT3WKisZcYDXsnEdnRv67Po3yCzFfaSoMjGZzJyD2c3DT1dg==",
+      "version": "12.0.3",
+      "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.3.tgz",
+      "integrity": "sha512-kqdmfXEGFepesTuROHMs3MpFLWrPkSSpRqOw80RCflZXy/khxaArvFrQ7uJxSUduzAufc6G0g1VUCOZXxWavPw==",
       "dev": true,
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@@ -6967,18 +7005,17 @@
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     "karma": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/karma/-/karma-4.1.0.tgz",
-      "integrity": "sha512-xckiDqyNi512U4dXGOOSyLKPwek6X/vUizSy2f3geYevbLj+UIdvNwbn7IwfUIL2g1GXEPWt/87qFD1fBbl/Uw==",
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/karma/-/karma-4.4.1.tgz",
+      "integrity": "sha512-L5SIaXEYqzrh6b1wqYC42tNsFMx2PWuxky84pK9coK09MvmL7mxii3G3bZBh/0rvD27lqDd0le9jyhzvwif73A==",
       "dev": true,
       "requires": {
         "bluebird": "^3.3.0",
         "body-parser": "^1.16.1",
-        "braces": "^2.3.2",
-        "chokidar": "^2.0.3",
+        "braces": "^3.0.2",
+        "chokidar": "^3.0.0",
         "colors": "^1.1.0",
         "connect": "^3.6.0",
-        "core-js": "^2.2.0",
         "di": "^0.0.1",
         "dom-serialize": "^2.2.0",
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@@ -6986,7 +7023,7 @@
         "graceful-fs": "^4.1.2",
         "http-proxy": "^1.13.0",
         "isbinaryfile": "^3.0.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.14",
         "log4js": "^4.0.0",
         "mime": "^2.3.1",
         "minimatch": "^3.0.2",
@@ -7001,707 +7038,17 @@
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-          "dev": true,
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-            "normalize-path": "^2.1.1"
-          },
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-              "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
-              "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
-              "dev": true,
-              "requires": {
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-            }
-          }
-        },
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-          "version": "1.13.1",
-          "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.13.1.tgz",
-          "integrity": "sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==",
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-          "integrity": "sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==",
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-            "array-unique": "^0.3.2",
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           "dev": true
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-          "dev": true,
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-            "micromatch": "^3.1.10",
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           "dev": true
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-        "to-regex-range": {
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-          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-2.1.1.tgz",
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@@ -8311,20 +7658,12 @@
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-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.3.tgz",
+      "integrity": "sha512-P+2gwrFqx8lhew375MQHHeTlY8AuOJSrGf0R5ddkEndUkmwpgUob/vQuBD1V22/Cw1/lJr4x+EjllSezBThzBg==",
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-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        }
+        "minimist": "^1.2.5"
       }
     },
     "move-concurrently": {
diff --git a/package.json b/package.json
index b6c92e6..4c96de0 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "@angular/platform-browser-dynamic": "~8.2.14",
     "@angular/router": "~8.2.14",
     "@ionic-native/core": "^5.0.0",
+    "@ionic-native/onesignal": "^5.23.0",
     "@ionic-native/splash-screen": "^5.0.0",
     "@ionic-native/status-bar": "^5.0.0",
     "@ionic/angular": "^5.0.0",
@@ -49,7 +50,7 @@
     "cordova-plugin-whitelist": "^1.3.3",
     "jasmine-core": "~3.4.0",
     "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~4.1.0",
+    "karma": "^4.4.1",
     "karma-chrome-launcher": "~2.2.0",
     "karma-coverage-istanbul-reporter": "~2.0.1",
     "karma-jasmine": "~2.0.1",
@@ -67,7 +68,8 @@
       "cordova-plugin-device": {},
       "cordova-plugin-splashscreen": {},
       "cordova-plugin-ionic-webview": {},
-      "cordova-plugin-ionic-keyboard": {}
+      "cordova-plugin-ionic-keyboard": {},
+      "onesignal-cordova-plugin": {}
     },
     "platforms": [
       "android",