diff --git a/.idea/misc.xml b/.idea/misc.xml
index 5489fee..283b1e5 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index 9fdf12b..2d4e1ce 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -35,6 +35,7 @@
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
     implementation 'com.android.support:appcompat-v7:26.1.0'
     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    implementation 'com.google.firebase:firebase-core:11.6.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.1'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
@@ -47,3 +48,6 @@
     implementation "android.arch.lifecycle:extensions:1.0.0-rc1"
     annotationProcessor "android.arch.lifecycle:compiler:1.0.0-rc1"
 }
+
+
+apply plugin: 'com.google.gms.google-services'
\ No newline at end of file
diff --git a/app/google-services.json b/app/google-services.json
new file mode 100644
index 0000000..e6682eb
--- /dev/null
+++ b/app/google-services.json
@@ -0,0 +1,55 @@
+{
+  "project_info": {
+    "project_number": "446283982327",
+    "firebase_url": "https://overlaymulticounter.firebaseio.com",
+    "project_id": "overlaymulticounter",
+    "storage_bucket": "overlaymulticounter.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:446283982327:android:09dde337d0110c55",
+        "android_client_info": {
+          "package_name": "jackall.overlaymulticounter"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "446283982327-df19k1klid64h5j2dnhfkrb9cr0cv59g.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "jackall.overlaymulticounter",
+            "certificate_hash": "7f4903330441c1fc88cdb2cf908467275cb43507"
+          }
+        },
+        {
+          "client_id": "446283982327-ap0cekfmavankqsdos25l9u8ho4l2ia8.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyARTNOw5AuyCiWY-ol0QXmNv1kabhNW_K8"
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 1
+        },
+        "appinvite_service": {
+          "status": 2,
+          "other_platform_oauth_client": [
+            {
+              "client_id": "446283982327-ap0cekfmavankqsdos25l9u8ho4l2ia8.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        },
+        "ads_service": {
+          "status": 2
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 5e7f1c2..64e08bf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,6 +14,7 @@
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
+        classpath 'com.google.gms:google-services:3.1.0'
     }
 }