diff --git a/android_app/android_app.iml b/android_app/android_app.iml
index 2a022014..a0a56048 100644
--- a/android_app/android_app.iml
+++ b/android_app/android_app.iml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="android_app" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="java-gradle" name="Java-Gradle">
       <configuration>
         <option name="BUILD_FOLDER_PATH" value="$MODULE_DIR$/build" />
+        <option name="BUILDABLE" value="false" />
       </configuration>
     </facet>
   </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/build/classes/main" />
-    <output-test url="file://$MODULE_DIR$/build/classes/test" />
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/.gradle" />
@@ -17,5 +16,4 @@
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
-</module>
-
+</module>
\ No newline at end of file
diff --git a/android_app/app/app.iml b/android_app/app/app.iml
index a151fb4c..8b876c4d 100644
--- a/android_app/app/app.iml
+++ b/android_app/app/app.iml
@@ -9,7 +9,6 @@
     <facet type="android" name="Android">
       <configuration>
         <option name="SELECTED_BUILD_VARIANT" value="debug" />
-        <option name="SELECTED_TEST_ARTIFACT" value="_android_test_" />
         <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
         <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
         <afterSyncTasks>
@@ -47,7 +46,6 @@
       <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/aidl" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/jni" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/rs" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/shaders" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/res" type="java-test-resource" />
@@ -55,7 +53,6 @@
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/assets" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/aidl" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/jni" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/rs" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/testDebug/shaders" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/res" type="java-resource" />
@@ -63,58 +60,42 @@
       <sourceFolder url="file://$MODULE_DIR$/src/main/assets" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/aidl" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/jni" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/rs" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/shaders" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/jni" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/res" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/resources" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/aidl" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/jni" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/shaders" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/assets" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/blame" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/builds" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/classes" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dependency-cache" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/appcompat-v7/21.0.0/jars" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/support-v4/21.0.3/jars" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.github.lecho/hellocharts-library/1.5.8/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-classes" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-runtime-classes" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-safeguard" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-verifier" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-resources" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-support" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/jniLibs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/manifests" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/pre-dexed" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/reload-dex" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/res" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/restart-dex" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/shaders" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/transforms" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
-      <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="support-v4-21.0.3" level="project" />
-    <orderEntry type="library" exported="" name="support-annotations-21.0.3" level="project" />
+    <orderEntry type="library" exported="" name="support-v4-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-compat-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-media-compat-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-core-ui-25.2.0" level="project" />
     <orderEntry type="library" exported="" name="hellocharts-library-1.5.8" level="project" />
-    <orderEntry type="library" exported="" name="appcompat-v7-21.0.0" level="project" />
+    <orderEntry type="library" exported="" name="appcompat-v7-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-annotations-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-vector-drawable-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-core-utils-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="support-fragment-25.2.0" level="project" />
+    <orderEntry type="library" exported="" name="animated-vector-drawable-25.2.0" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/android_app/app/build.gradle b/android_app/app/build.gradle
index af41b28e..e634ccf2 100644
--- a/android_app/app/build.gradle
+++ b/android_app/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 21
-    buildToolsVersion "21.1.2"
+    compileSdkVersion 25
+    buildToolsVersion '25.0.2'
 
     defaultConfig {
         applicationId "com.health.openscale"
         minSdkVersion 18
-        targetSdkVersion 21
+        targetSdkVersion 25
     }
 
     buildTypes {
@@ -17,9 +17,12 @@ android {
         }
     }
 }
+ext {
+    supportLibVersion = '25.2.0'
+}
 
 dependencies {
-    compile 'com.android.support:support-v4:21.0.3'
-    compile 'com.android.support:appcompat-v7:21.0.0'
+    compile "com.android.support:support-v4:${supportLibVersion}"
+    compile "com.android.support:appcompat-v7:${supportLibVersion}"
     compile 'com.github.lecho:hellocharts-library:1.5.8@aar'
 }
diff --git a/android_app/build.gradle b/android_app/build.gradle
index e26cdeef..97e8b8e3 100644
--- a/android_app/build.gradle
+++ b/android_app/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:2.3.0'
     }
 }
 
diff --git a/android_app/gradle/wrapper/gradle-wrapper.properties b/android_app/gradle/wrapper/gradle-wrapper.properties
index 0c71e760..91103397 100644
--- a/android_app/gradle/wrapper/gradle-wrapper.properties
+++ b/android_app/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Sun Mar 05 12:16:00 CET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip