diff --git a/src/app.js b/src/app.js
index ac89973..23c07f4 100644
--- a/src/app.js
+++ b/src/app.js
@@ -86,17 +86,21 @@ const PerfectyPush = (() => {
   const askPermissionsDirectly = async () => {
     if (Permission.askedAlready()) {
       // if we already have asked for permissions, we don't ask again
-      return true
+      return Permission.isGranted()
     }
 
     await Permission.askIfNotDenied()
-    if (Permission.isGranted()) {
-      Logger.info('User has granted permissions')
-
-      const userId = Storage.userId()
-      await ServiceInstaller.installIfMissing()
-      await Registration.register(userId, true)
+    if (!Permission.isGranted()) {
+      return false
     }
+
+    Logger.info('User has granted permissions')
+
+    const userId = Storage.userId()
+    await ServiceInstaller.installIfMissing()
+    await Registration.register(userId, true)
+
+    return true
   }
 
   const checkInstallation = async () => {
@@ -112,8 +116,35 @@ const PerfectyPush = (() => {
     await Registration.check(Storage.userId(), Storage.optedOut())
   }
 
+  const register = async () => {
+    Options.askPermissionsDirectly = true
+    Storage.setOptedOut(false)
+
+    if (!Permission.isGranted()) {
+      return askPermissionsDirectly()
+    }
+
+    const userId = Storage.userId()
+    await ServiceInstaller.installIfMissing()
+    return Registration.register(userId, true)
+  }
+
+  const unregister = async () => {
+    const userId = Storage.userId()
+    await Registration.unregister(userId)
+    Storage.setOptedOut(true)
+    await ServiceInstaller.removeInstallation()
+  }
+
+  const isRegister = () => {
+    return Permission.isGranted() && Storage.optedOut() === false
+  }
+
   return {
-    start
+    start,
+    register,
+    unregister,
+    isRegister
   }
 })()
 
diff --git a/webpack.config.js b/webpack.config.js
index 014ffea..e3d5961 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -3,8 +3,15 @@ const ESLintPlugin = require('eslint-webpack-plugin')
 
 module.exports = {
   entry: {
-    'perfecty-push-sdk': './src/app.js',
-    'perfecty-push-sw': './src/service-worker.js'
+    'perfecty-push-sdk': {
+      import: './src/app.js',
+      library: {
+        name: 'PerfectyPush',
+        type: 'var',
+        export: 'default'
+      }
+    },
+    'perfecty-push-sw': './src/service-worker.js',
   },
   mode: 'development',
   devtool: 'source-map',
diff --git a/webpack.prod.config.js b/webpack.prod.config.js
index 1715685..20d0c56 100644
--- a/webpack.prod.config.js
+++ b/webpack.prod.config.js
@@ -2,7 +2,14 @@ const path = require('path')
 
 module.exports = {
   entry: {
-    'perfecty-push-sdk': './src/app.js',
+    'perfecty-push-sdk': {
+      import: './src/app.js',
+      library: {
+        name: 'PerfectyPush',
+        type: 'var',
+        export: 'default'
+      }
+    },
     'perfecty-push-sw': './src/service-worker.js'
   },
   mode: 'production',