diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 405c1b3c2..d8cf62e66 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -14,4 +14,4 @@ jobs:
       with:
         java-version: 1.8
     - name: Build with Gradle
-      run: ./gradlew -Pcoverage lintBetaDebug pmd checkstyle jacocoTestBetaDebugUnitTestReport
\ No newline at end of file
+      run: ./gradlew -Pcoverage jacocoTestBetaDebugUnitTestReport
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index e1c34ac7d..3e86a578d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,7 +23,7 @@ android:
   licenses:
   - android-sdk-license-.+
 script:
-- "./gradlew -Pcoverage lintBetaDebug pmd checkstyle jacocoTestBetaDebugUnitTestReport"
+- "./gradlew -Pcoverage jacocoTestBetaDebugUnitTestReport"
 - if [ "$TRAVIS_PULL_REQUEST" == "false" ] && [ "$TRAVIS_BRANCH" == "master" ]; then
   mkdir -p app/src/prodRelease/play/release-notes/en-US;
   fi
diff --git a/app/build.gradle b/app/build.gradle
index 0ccc38f60..356c1d7a7 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,6 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: "com.hiya.jacoco-android"
-apply from: 'quality.gradle'
 
 def isRunningOnTravisAndIsNotPRBuild = System.getenv("CI") == "true" && file('../play.p12').exists()
 
diff --git a/app/quality.gradle b/app/quality.gradle
deleted file mode 100644
index 1afdf0d68..000000000
--- a/app/quality.gradle
+++ /dev/null
@@ -1,45 +0,0 @@
-apply plugin: 'checkstyle'
-apply plugin: 'pmd'
-
-check.dependsOn 'checkstyle', 'pmd'
-
-checkstyle {
-    toolVersion = '7.5.1'
-}
-
-task checkstyle(type: Checkstyle) {
-    configFile file("${project.rootDir}/script/style/checkstyle.xml")
-    source 'src'
-    include '**/*.java'
-    exclude '**/gen/**'
-
-    classpath = files()
-
-    reports {
-        html {
-            enabled true
-            destination file("${project.buildDir}/reports/checkstyle/checkstyle.html")
-        }
-    }
-}
-
-task pmd(type: Pmd) {
-    ignoreFailures = true
-    ruleSetFiles = files("${project.rootDir}/script/style/ruleset.xml")
-    ruleSets = []
-
-    source 'src'
-    include '**/*.java'
-    exclude '**/gen/**'
-
-    reports {
-        xml.enabled = false
-        html.enabled = true
-        xml {
-            destination file("${project.buildDir}/reports/pmd/pmd.xml")
-        }
-        html {
-            destination file("${project.buildDir}/reports/pmd/pmd.html")
-        }
-    }
-}
diff --git a/script/style/checkstyle.xml b/script/style/checkstyle.xml
deleted file mode 100644
index 216d1bce2..000000000
--- a/script/style/checkstyle.xml
+++ /dev/null
@@ -1,254 +0,0 @@
-<?xml version="1.0"?>
-<!DOCTYPE module PUBLIC
-    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
-
-<!--
-    Modified from https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/google_checks.xml.
-    Modifications are:
-    - doubled each value in Indentation
-    - exceptions for Butter Knife and Espresso
-    - larger (max)LineLength
-
-    Checkstyle configuration that checks the Google coding conventions from Google Java Style
-    that can be found at https://google.github.io/styleguide/javaguide.html.
-
-    Checkstyle is very configurable. Be sure to read the documentation at
-    http://checkstyle.sf.net (or in your downloaded distribution).
-
-    To completely disable a check, just comment it out or delete it from the file.
-
-    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
- -->
-
-<module name = "Checker">
-    <property name="charset" value="UTF-8"/>
-
-    <property name="severity" value="warning"/>
-
-    <property name="fileExtensions" value="java, properties, xml"/>
-    <!-- Checks for whitespace                               -->
-    <!-- See http://checkstyle.sf.net/config_whitespace.html -->
-    <module name="FileTabCharacter">
-        <property name="eachLine" value="true"/>
-    </module>
-
-    <module name="TreeWalker">
-        <module name="OuterTypeFilename"/>
-        <module name="IllegalTokenText">
-            <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
-            <property name="format" value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
-            <property name="message" value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
-        </module>
-        <module name="AvoidEscapedUnicodeCharacters">
-            <property name="allowEscapesForControlCharacters" value="true"/>
-            <property name="allowByTailComment" value="true"/>
-            <property name="allowNonPrintableEscapes" value="true"/>
-        </module>
-        <module name="LineLength">
-            <property name="max" value="140"/>
-            <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
-        </module>
-        <module name="AvoidStarImport"/>
-        <module name="OneTopLevelClass"/>
-        <module name="NoLineWrap"/>
-        <module name="EmptyBlock">
-            <property name="option" value="TEXT"/>
-            <property name="tokens" value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
-        </module>
-        <module name="NeedBraces"/>
-        <module name="LeftCurly">
-            <property name="maxLineLength" value="140"/>
-        </module>
-        <module name="RightCurly">
-            <property name="id" value="RightCurlySame"/>
-            <property name="tokens" value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_DO"/>
-        </module>
-        <module name="RightCurly">
-            <property name="id" value="RightCurlyAlone"/>
-            <property name="option" value="alone"/>
-            <property name="tokens" value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT, INSTANCE_INIT"/>
-        </module>
-        <module name="WhitespaceAround">
-            <property name="allowEmptyConstructors" value="true"/>
-            <property name="allowEmptyMethods" value="true"/>
-            <property name="allowEmptyTypes" value="true"/>
-            <property name="allowEmptyLoops" value="true"/>
-            <message key="ws.notFollowed"
-                     value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
-            <message key="ws.notPreceded"
-                     value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
-        </module>
-
-        <module name="VisibilityModifier">
-            <property name="packageAllowed" value="false"/>
-            <!-- Espresso -->
-             <property name="ignoreAnnotationCanonicalNames" value="Rule" />
-            <!-- Butter Knife -->
-            <property name="ignoreAnnotationCanonicalNames" value="BindArray" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindBitmap" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindBool" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindColor" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindDimen" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindDrawable" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindInt" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindString" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindView" />
-            <property name="ignoreAnnotationCanonicalNames" value="BindViews" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnCheckedChanged" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnClick" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnEditorAction" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnFocusChange" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnItemClick" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnItemLongClick" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnItemSelected" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnLongClick" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnPageChange" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnTextChanged" />
-            <property name="ignoreAnnotationCanonicalNames" value="OnTouch" />
-        </module>
-
-        <module name="OneStatementPerLine"/>
-        <module name="MultipleVariableDeclarations"/>
-        <module name="ArrayTypeStyle"/>
-        <module name="MissingSwitchDefault"/>
-        <module name="FallThrough"/>
-        <module name="UpperEll"/>
-        <module name="ModifierOrder"/>
-        <module name="EmptyLineSeparator">
-            <property name="allowNoEmptyLineBetweenFields" value="true"/>
-        </module>
-        <module name="SeparatorWrap">
-            <property name="id" value="SeparatorWrapDot"/>
-            <property name="tokens" value="DOT"/>
-            <property name="option" value="nl"/>
-        </module>
-        <module name="SeparatorWrap">
-            <property name="id" value="SeparatorWrapComma"/>
-            <property name="tokens" value="COMMA"/>
-            <property name="option" value="EOL"/>
-        </module>
-        <module name="PackageName">
-            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
-            <message key="name.invalidPattern"
-                     value="Package name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="TypeName">
-            <message key="name.invalidPattern"
-                     value="Type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="MemberName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
-            <message key="name.invalidPattern"
-                     value="Member name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="ParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Parameter name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="CatchParameterName">
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="LocalVariableName">
-            <property name="tokens" value="VARIABLE_DEF"/>
-            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
-            <message key="name.invalidPattern"
-                     value="Local variable name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="ClassTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-                     value="Class type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="MethodTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-                     value="Method type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="InterfaceTypeParameterName">
-            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
-            <message key="name.invalidPattern"
-                     value="Interface type name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="NoFinalizer"/>
-        <module name="GenericWhitespace">
-            <message key="ws.followed"
-                     value="GenericWhitespace ''{0}'' is followed by whitespace."/>
-            <message key="ws.preceded"
-                     value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
-            <message key="ws.illegalFollow"
-                     value="GenericWhitespace ''{0}'' should followed by whitespace."/>
-            <message key="ws.notPreceded"
-                     value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
-        </module>
-        <module name="Indentation">
-            <property name="basicOffset" value="4"/>
-            <property name="braceAdjustment" value="0"/>
-            <property name="caseIndent" value="4"/>
-            <property name="throwsIndent" value="8"/>
-            <property name="lineWrappingIndentation" value="8"/>
-            <property name="arrayInitIndent" value="4"/>
-        </module>
-        <module name="AbbreviationAsWordInName">
-            <property name="ignoreFinal" value="false"/>
-            <property name="allowedAbbreviationLength" value="1"/>
-        </module>
-        <module name="OverloadMethodsDeclarationOrder"/>
-        <module name="VariableDeclarationUsageDistance"/>
-        <module name="CustomImportOrder">
-            <property name="sortImportsInGroupAlphabetically" value="false"/>
-            <property name="separateLineBetweenGroups" value="true"/>
-            <property name="standardPackageRegExp" value="^(android|com|junit|net|org|java|javax)\."/>
-            <property name="customImportOrderRules" value="STANDARD_JAVA_PACKAGE###THIRD_PARTY_PACKAGE###STATIC"/>
-        </module>
-        <module name="MethodParamPad"/>
-        <module name="ParenPad"/>
-        <module name="OperatorWrap">
-            <property name="option" value="NL"/>
-            <property name="tokens" value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR, LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF "/>
-        </module>
-        <module name="AnnotationLocation">
-            <property name="id" value="AnnotationLocationMostCases"/>
-            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
-        </module>
-        <module name="AnnotationLocation">
-            <property name="id" value="AnnotationLocationVariables"/>
-            <property name="tokens" value="VARIABLE_DEF"/>
-            <property name="allowSamelineMultipleAnnotations" value="true"/>
-        </module>
-        <module name="NonEmptyAtclauseDescription"/>
-        <module name="JavadocTagContinuationIndentation"/>
-        <module name="SummaryJavadoc">
-            <property name="forbiddenSummaryFragments" value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
-        </module>
-        <module name="JavadocParagraph"/>
-        <module name="AtclauseOrder">
-            <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
-            <property name="target" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
-        </module>
-        <module name="JavadocMethod">
-            <property name="scope" value="public"/>
-            <property name="allowMissingParamTags" value="true"/>
-            <property name="allowMissingThrowsTags" value="true"/>
-            <property name="allowMissingReturnTag" value="true"/>
-            <property name="minLineCount" value="2"/>
-            <property name="allowedAnnotations" value="Override, Test"/>
-            <property name="allowThrowsTagsForSubclasses" value="true"/>
-        </module>
-        <module name="MethodName">
-            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
-            <message key="name.invalidPattern"
-                     value="Method name ''{0}'' must match pattern ''{1}''."/>
-        </module>
-        <module name="SingleLineJavadoc">
-            <property name="ignoreInlineTags" value="false"/>
-        </module>
-        <module name="EmptyCatchBlock">
-            <property name="exceptionVariableName" value="expected"/>
-        </module>
-        <module name="CommentsIndentation"/>
-    </module>
-</module>
diff --git a/script/style/ruleset.xml b/script/style/ruleset.xml
deleted file mode 100644
index d516ddcf3..000000000
--- a/script/style/ruleset.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0"?>
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="Commons Android App Rules"
-    xmlns="http://pmd.sf.net/ruleset/1.0.0"
-    xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd"
-    xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd">
-
-    <description>Custom ruleset for Commons Android app</description>
-
-    <exclude-pattern>.*/R.java</exclude-pattern>
-    <exclude-pattern>.*/gen/.*</exclude-pattern>
-
-    <rule ref="rulesets/java/android.xml" />
-    <rule ref="rulesets/java/basic.xml" />
-    <rule ref="rulesets/java/unusedcode.xml" />
-</ruleset>