diff --git a/config.xml b/config.xml
index b5fae8f..e6f9fdb 100644
--- a/config.xml
+++ b/config.xml
@@ -80,7 +80,8 @@
         <splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" />
     </platform>
     <icon src="resources/android/icon/drawable-xhdpi-icon.png" />
-    <engine name="android" spec="~6.1.2" />
+    <engine name="android" spec="^6.1.2" />
+    <engine name="browser" spec="~4.1.0" />
     <plugin name="cordova-plugin-actionsheet" spec="~2.3.3" />
     <plugin name="cordova-plugin-console" spec="1.0.5" />
     <plugin name="cordova-plugin-crosswalk-webview" spec="~2.3.0">
@@ -99,5 +100,4 @@
     <plugin name="cordova-plugin-x-toast" spec="~2.6.0" />
     <plugin name="cordova-sqlite-storage" spec="~2.0.3" />
     <plugin name="ionic-plugin-keyboard" spec="~2.2.1" />
-    <engine name="browser" spec="~4.1.0" />
 </widget>
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..8bffb07
--- /dev/null
+++ b/makefile
@@ -0,0 +1,22 @@
+all:
+	make release
+	make sign
+	make zipalign
+	-make install
+
+release:
+	ionic cordova build --release android
+	-rm ../android-release-unsigned.apk
+	cp ./platforms/android/build/outputs/apk/android-release-unsigned.apk ../android-release-unsigned.apk
+
+sign:
+	make -C .. sign
+
+zipalign:
+	-rm ../android-release-signed-zipaligned.apk
+	zipalign -v 4 ../android-release-signed.apk ../android-release-signed-zipaligned.apk
+
+install:
+	adb install -r ../android-release-signed-zipaligned.apk
+
+
diff --git a/package.json b/package.json
index 4bf37de..666b29f 100644
--- a/package.json
+++ b/package.json
@@ -33,19 +33,8 @@
         "@ionic/storage": "2.0.1",
         "@types/node": "7.0.18",
         "chart.js": "2.6.0",
-        "ionic-angular": "3.2.1",
-        "ionic-orm": "0.0.5",
-        "ionic-typeorm": "0.0.15",
-        "ionicons": "3.0.0",
-        "moment": "2.18.1",
-        "ng2-charts": "1.5.0",
-        "reflect-metadata": "0.1.10",
-        "rxjs": "5.1.1",
-        "sw-toolbox": "3.4.0",
-        "typeorm": "0.0.11",
-        "zone.js": "0.8.5",
+        "cordova-android": "^6.1.2",
         "cordova-browser": "~4.1.0",
-        "cordova-android": "~6.1.2",
         "cordova-plugin-actionsheet": "~2.3.3",
         "cordova-plugin-console": "1.0.5",
         "cordova-plugin-crosswalk-webview": "~2.3.0",
@@ -56,15 +45,27 @@
         "cordova-plugin-x-socialsharing": "~5.1.8",
         "cordova-plugin-x-toast": "~2.6.0",
         "cordova-sqlite-storage": "~2.0.3",
-        "ionic-plugin-keyboard": "~2.2.1"
+        "ionic-angular": "3.2.1",
+        "ionic-orm": "0.0.5",
+        "ionic-plugin-keyboard": "~2.2.1",
+        "ionic-typeorm": "0.0.15",
+        "ionicons": "3.0.0",
+        "moment": "2.18.1",
+        "ng2-charts": "1.5.0",
+        "reflect-metadata": "0.1.10",
+        "rxjs": "5.1.1",
+        "sw-toolbox": "3.4.0",
+        "typeorm": "0.0.11",
+        "zone.js": "0.8.5"
     },
     "devDependencies": {
         "@angular/cli": "1.0.2",
         "@ionic/app-scripts": "1.3.6",
-        "@ionic/cli-plugin-cordova": "1.2.1",
-        "@ionic/cli-plugin-ionic-angular": "1.2.0",
+        "@ionic/cli-plugin-cordova": "1.6.2",
+        "@ionic/cli-plugin-ionic-angular": "1.4.1",
         "@types/jasmine": "2.5.47",
         "codecov": "2.1.0",
+        "ionic": "3.7.0",
         "jasmine-core": "2.6.1",
         "jasmine-spec-reporter": "4.1.0",
         "karma": "1.7.0",
@@ -116,4 +117,4 @@
             "ionic-plugin-keyboard": {}
         }
     }
-}
+}
\ No newline at end of file
diff --git a/putOnParent_makefile b/putOnParent_makefile
new file mode 100644
index 0000000..75e0a26
--- /dev/null
+++ b/putOnParent_makefile
@@ -0,0 +1,4 @@
+sign:	
+	touch sign.sh
+	chmod +x sign.sh
+	./sign.sh
diff --git a/putOnParent_sign.sh b/putOnParent_sign.sh
new file mode 100755
index 0000000..021fb16
--- /dev/null
+++ b/putOnParent_sign.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+cp android-release-unsigned.apk android-release-signed.apk
+jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -storepass <your_password_here> -keypass <your_password_here> -keystore <keystore_file> android-release-signed.apk <stored_key_name>
+
diff --git a/screenshots/historico_precos.png b/screenshots/historico_precos.png
new file mode 100755
index 0000000..22bc04d
Binary files /dev/null and b/screenshots/historico_precos.png differ
diff --git a/screenshots/inicio.png b/screenshots/inicio.png
new file mode 100755
index 0000000..4484e0c
Binary files /dev/null and b/screenshots/inicio.png differ
diff --git a/screenshots/menu.png b/screenshots/menu.png
new file mode 100755
index 0000000..edbbacc
Binary files /dev/null and b/screenshots/menu.png differ