diff --git a/.gitignore b/.gitignore
index dc267ae..4cd1c5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,10 @@
 *.iml
+*.aab
 .gradle
 /local.properties
 /.idea/
 .DS_Store
 /build
 /captures
-release.keystore
-signing.properties
+keystore.jks
+keystore.properties
diff --git a/app/build.gradle b/app/build.gradle
index 0f27a50..142681a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,6 +2,10 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
+def keystorePropertiesFile = rootProject.file("keystore.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
     compileSdkVersion 28
     buildToolsVersion '28.0.3'
@@ -18,7 +22,12 @@ android {
     }
 
     signingConfigs {
-        release
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile file(keystoreProperties['storeFile'])
+            storePassword keystoreProperties['storePassword']
+        }
     }
 
     buildTypes {
@@ -54,22 +63,3 @@ dependencies {
     androidTestImplementation 'androidx.test:rules:1.1.0-beta02'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-beta02'
 }
-
-Properties props = new Properties()
-def propFile = new File('signing.properties')
-if (propFile.canRead()) {
-    props.load(new FileInputStream(propFile))
-
-    if (props != null && props.containsKey('STORE_FILE') && props.containsKey('KEY_ALIAS') && props.containsKey('PASSWORD')) {
-        android.signingConfigs.release.storeFile = file(props['STORE_FILE'])
-        android.signingConfigs.release.storePassword = props['PASSWORD']
-        android.signingConfigs.release.keyAlias = props['KEY_ALIAS']
-        android.signingConfigs.release.keyPassword = props['PASSWORD']
-    } else {
-        println 'signing.properties found but some entries are missing'
-        android.buildTypes.release.signingConfig = null
-    }
-} else {
-    println 'signing.properties not found'
-    android.buildTypes.release.signingConfig = null
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
index 5befdcd..7e5ffad 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
@@ -125,7 +125,8 @@ class MainActivity : SimpleActivity(), Calculator {
                 FAQItem(R.string.faq_1_title, R.string.faq_1_text),
                 FAQItem(R.string.faq_1_title_commons, R.string.faq_1_text_commons),
                 FAQItem(R.string.faq_4_title_commons, R.string.faq_4_text_commons),
-                FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons)
+                FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons),
+                FAQItem(R.string.faq_2_title_commons, R.string.faq_6_text_commons)
         )
 
         startAboutActivity(R.string.app_name, licenses, BuildConfig.VERSION_NAME, faqItems, true)
diff --git a/keystore.properties_sample b/keystore.properties_sample
new file mode 100644
index 0000000..569edd7
--- /dev/null
+++ b/keystore.properties_sample
@@ -0,0 +1,4 @@
+storePassword=123456
+keyPassword=abcdef
+keyAlias=myAlias
+storeFile=../keystore.jks
diff --git a/signing.properties_sample b/signing.properties_sample
deleted file mode 100644
index cf8e239..0000000
--- a/signing.properties_sample
+++ /dev/null
@@ -1,3 +0,0 @@
-STORE_FILE=/path/to/your.keystore
-KEY_ALIAS=projectkeyalias
-PASSWORD=yourpass