diff --git a/android/MobageShellAppSDKSampleApp/.gitignore b/android/MobageShellAppSDKSampleApp/.gitignore
new file mode 100644
index 0000000..432f63f
--- /dev/null
+++ b/android/MobageShellAppSDKSampleApp/.gitignore
@@ -0,0 +1,75 @@
+# Built application files
+*.apk
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+release/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+# MobageShellAppSDK
+MobageShellAppSDKAndroid/*
diff --git a/android/MobageShellAppSDKSampleApp/build.gradle b/android/MobageShellAppSDKSampleApp/build.gradle
index 6013117..6ac36dd 100755
--- a/android/MobageShellAppSDKSampleApp/build.gradle
+++ b/android/MobageShellAppSDKSampleApp/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath 'com.android.tools.build:gradle:3.4.0'
     }
 }
 
diff --git a/android/MobageShellAppSDKSampleApp/gradle/wrapper/gradle-wrapper.properties b/android/MobageShellAppSDKSampleApp/gradle/wrapper/gradle-wrapper.properties
index 649480d..92bcaad 100755
--- a/android/MobageShellAppSDKSampleApp/gradle/wrapper/gradle-wrapper.properties
+++ b/android/MobageShellAppSDKSampleApp/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Tue May 14 18:33:22 JST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
diff --git a/android/MobageShellAppSDKSampleApp/shellAppSDKSample/build.gradle b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/build.gradle
index b4f3a4e..72f97b3 100755
--- a/android/MobageShellAppSDKSampleApp/shellAppSDKSample/build.gradle
+++ b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/build.gradle
@@ -1,12 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.3"
+    compileSdkVersion 28
 
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0.0"
 
@@ -24,9 +23,6 @@ android {
 }
 
 dependencies {
-    compile project(':MobageShellAppSDKAndroid')
-
-    implementation 'com.google.android.gms:play-services-ads:15.0.1'
-    implementation 'com.google.firebase:firebase-messaging:17.1.0'
-    implementation 'com.firebase:firebase-jobdispatcher:0.8.5'
+    implementation project(':MobageShellAppSDKAndroid')
+    implementation 'com.google.android.gms:play-services-base:16.1.0'
 }
diff --git a/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/AndroidManifest.xml b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/AndroidManifest.xml
index 4b890a1..8d12e94 100755
--- a/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/AndroidManifest.xml
+++ b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/AndroidManifest.xml
@@ -3,11 +3,6 @@
     package="jp.mobage.am.shellapp.sample"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <uses-permission android:name="com.android.vending.BILLING" />
-
     <application
         android:allowBackup="true"
         android:label="@string/app_name"
diff --git a/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/assets/sound/bgm1.ogg b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/assets/sound/bgm1.ogg
new file mode 100644
index 0000000..a39dc8d
Binary files /dev/null and b/android/MobageShellAppSDKSampleApp/shellAppSDKSample/src/main/assets/sound/bgm1.ogg differ