diff --git a/app/src/main/java/eu/kanade/tachiyomi/App.kt b/app/src/main/java/eu/kanade/tachiyomi/App.kt
index d703958aa7..46f2e80625 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/App.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/App.kt
@@ -1,8 +1,6 @@
 package eu.kanade.tachiyomi
 
 import android.app.Application
-import android.content.Context
-import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import org.acra.ACRA
 import org.acra.annotation.ReportsCrashes
 import timber.log.Timber
@@ -17,29 +15,16 @@ import uy.kohesive.injekt.Injekt
 )
 open class App : Application() {
 
-    var appTheme = 0
-
     override fun onCreate() {
         super.onCreate()
         Injekt.importModule(AppModule(this))
         if (BuildConfig.DEBUG) Timber.plant(Timber.DebugTree())
 
-        setupTheme()
         setupAcra()
     }
 
-    private fun setupTheme() {
-        appTheme = PreferencesHelper.getTheme(this)
-    }
-
     protected open fun setupAcra() {
         ACRA.init(this)
     }
 
-    companion object {
-        @JvmStatic
-        fun get(context: Context): App {
-            return context.applicationContext as App
-        }
-    }
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarm.kt b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarm.kt
index 8f2368406c..1c08f967ea 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarm.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarm.kt
@@ -7,7 +7,10 @@ import android.content.Context
 import android.content.Intent
 import android.os.SystemClock
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.getOrDefault
 import eu.kanade.tachiyomi.util.alarmManager
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 
 /**
  * This class is used to update the library by firing an alarm after a specified time.
@@ -25,10 +28,8 @@ class LibraryUpdateAlarm : BroadcastReceiver() {
          * @param intervalInHours the time in hours when it will be executed. Defaults to the
          * value stored in preferences.
          */
-        @JvmStatic
-        @JvmOverloads
         fun startAlarm(context: Context,
-                       intervalInHours: Int = PreferencesHelper.getLibraryUpdateInterval(context)) {
+                       intervalInHours: Int = Injekt.get<PreferencesHelper>().libraryUpdateInterval().getOrDefault()) {
             // Stop previous running alarms if needed, and do not restart it if the interval is 0.
             stopAlarm(context)
             if (intervalInHours == 0)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt
index c0eaffc84f..45c8e5ddd0 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt
@@ -10,6 +10,8 @@ import eu.kanade.tachiyomi.R
  */
 class PreferenceKeys(context: Context) {
 
+    val theme = context.getString(R.string.pref_theme_key)
+
     val rotation = context.getString(R.string.pref_rotation_type_key)
 
     val enableTransitions = context.getString(R.string.pref_enable_transitions_key)
@@ -78,6 +80,8 @@ class PreferenceKeys(context: Context) {
 
     val filterUnread = context.getString(R.string.pref_filter_unread_key)
 
+    val automaticUpdateStatus = context.getString(R.string.pref_enable_automatic_updates_key)
+
     fun sourceUsername(sourceId: Int) = "pref_source_username_$sourceId"
 
     fun sourcePassword(sourceId: Int) = "pref_source_password_$sourceId"
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
index ef2e2cce43..8a159c3a7f 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
@@ -13,7 +13,7 @@ import java.io.IOException
 
 fun <T> Preference<T>.getOrDefault(): T = get() ?: defaultValue()!!
 
-class PreferencesHelper(private val context: Context) {
+class PreferencesHelper(context: Context) {
 
     val keys = PreferenceKeys(context)
 
@@ -32,28 +32,9 @@ class PreferencesHelper(private val context: Context) {
         }
     }
 
-    companion object {
+    fun clear() = prefs.edit().clear().apply()
 
-        fun getLibraryUpdateInterval(context: Context): Int {
-            return PreferenceManager.getDefaultSharedPreferences(context).getInt(
-                    context.getString(R.string.pref_library_update_interval_key), 0)
-        }
-
-        fun getAutomaticUpdateStatus(context: Context): Boolean {
-            return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
-                    context.getString(R.string.pref_enable_automatic_updates), false)
-        }
-
-        @JvmStatic
-        fun getTheme(context: Context): Int {
-            return PreferenceManager.getDefaultSharedPreferences(context).getInt(
-                    context.getString(R.string.pref_theme_key), 1)
-        }
-    }
-
-    fun clear() {
-        prefs.edit().clear().apply()
-    }
+    fun theme() = prefs.getInt(keys.theme, 1)
 
     fun rotation() = rxPrefs.getInteger(keys.rotation, 1)
 
@@ -147,4 +128,6 @@ class PreferencesHelper(private val context: Context) {
 
     fun filterUnread() = rxPrefs.getBoolean(keys.filterUnread, false)
 
+    fun automaticUpdateStatus() = prefs.getBoolean(keys.automaticUpdateStatus, false)
+
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderAlarm.kt b/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderAlarm.kt
index b0258fd076..66e01deb94 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderAlarm.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderAlarm.kt
@@ -15,6 +15,8 @@ import eu.kanade.tachiyomi.util.notification
 import eu.kanade.tachiyomi.util.notificationManager
 import rx.android.schedulers.AndroidSchedulers
 import rx.schedulers.Schedulers
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 
 class UpdateDownloaderAlarm : BroadcastReceiver() {
 
@@ -26,9 +28,8 @@ class UpdateDownloaderAlarm : BroadcastReceiver() {
          * @param context the application context.
          * @param intervalInHours the time in hours when it will be executed.
          */
-        @JvmStatic
-        @JvmOverloads
-        fun startAlarm(context: Context, intervalInHours: Int = 12, isEnabled: Boolean = PreferencesHelper.getAutomaticUpdateStatus(context)) {
+        fun startAlarm(context: Context, intervalInHours: Int = 12,
+                       isEnabled: Boolean = Injekt.get<PreferencesHelper>().automaticUpdateStatus()) {
             // Stop previous running alarms if needed, and do not restart it if the interval is 0.
             UpdateDownloaderAlarm.stopAlarm(context)
             if (intervalInHours == 0 || !isEnabled)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt
index 41773a9d59..a259c3adb7 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt
@@ -8,8 +8,10 @@ import android.support.v4.content.ContextCompat
 import android.support.v7.app.ActionBar
 import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.Toolbar
-import eu.kanade.tachiyomi.App
 import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 
 interface ActivityMixin {
 
@@ -22,7 +24,7 @@ interface ActivityMixin {
     }
 
     fun setAppTheme() {
-        setTheme(when (App.get(getActivity()).appTheme) {
+        setTheme(when (Injekt.get<PreferencesHelper>().theme()) {
             2 -> R.style.Theme_Tachiyomi_Dark
             else -> R.style.Theme_Tachiyomi
         })
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt
index 2f25572c3b..fedf1c27b9 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt
@@ -50,7 +50,6 @@ class CategoryActivity : BaseRxActivity<CategoryPresenter>(), ActionMode.Callbac
          *
          * @param context context information.
          */
-        @JvmStatic
         fun newIntent(context: Context): Intent {
             return Intent(context, CategoryActivity::class.java)
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/download/DownloadFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/download/DownloadFragment.kt
index 162379037f..562aade653 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/download/DownloadFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/download/DownloadFragment.kt
@@ -67,7 +67,6 @@ class DownloadFragment : BaseRxFragment<DownloadPresenter>() {
          *
          * @return a new instance of [DownloadFragment].
          */
-        @JvmStatic
         fun newInstance(): DownloadFragment {
             return DownloadFragment()
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.kt
index d03415cac0..f4849acef5 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.kt
@@ -95,7 +95,6 @@ class LibraryFragment : BaseRxFragment<LibraryPresenter>(), ActionMode.Callback
          *
          * @return a new instance of [LibraryFragment].
          */
-        @JvmStatic
         fun newInstance(): LibraryFragment {
             return LibraryFragment()
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/recent_updates/RecentChaptersFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/recent_updates/RecentChaptersFragment.kt
index 35fb685401..a1b2dc0857 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/recent_updates/RecentChaptersFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/recent_updates/RecentChaptersFragment.kt
@@ -34,7 +34,6 @@ class RecentChaptersFragment
          * Create new RecentChaptersFragment.
          * @return a new instance of [RecentChaptersFragment].
          */
-        @JvmStatic
         fun newInstance(): RecentChaptersFragment {
             return RecentChaptersFragment()
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadFragment.kt
index 1c7dc15205..6586cb48cb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadFragment.kt
@@ -27,9 +27,7 @@ class RecentlyReadFragment : BaseRxFragment<RecentlyReadPresenter>() {
     companion object {
         /**
          * Create new RecentChaptersFragment.
-         *
          */
-        @JvmStatic
         fun newInstance(): RecentlyReadFragment {
             return RecentlyReadFragment()
         }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralFragment.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralFragment.kt
index 2e81d577b7..5b6b4292fb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralFragment.kt
@@ -6,7 +6,6 @@ import android.support.v14.preference.MultiSelectListPreference
 import android.support.v4.app.TaskStackBuilder
 import android.support.v7.preference.Preference
 import android.view.View
-import eu.kanade.tachiyomi.App
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.library.LibraryUpdateAlarm
 import eu.kanade.tachiyomi.ui.main.MainActivity
@@ -62,8 +61,6 @@ class SettingsGeneralFragment : SettingsNestedFragment() {
         }
 
         themePreference.setOnPreferenceChangeListener { preference, newValue ->
-            App.get(activity).appTheme = (newValue as String).toInt()
-
             // Rebuild activity's to apply themes.
             TaskStackBuilder.create(activity)
                     .addNextIntent(Intent(activity, MainActivity::class.java))
diff --git a/app/src/main/res/values/keys.xml b/app/src/main/res/values/keys.xml
index 9b0ba28e0b..3543a757e7 100644
--- a/app/src/main/res/values/keys.xml
+++ b/app/src/main/res/values/keys.xml
@@ -55,7 +55,7 @@
 
     <string name="pref_version">pref_version</string>
     <string name="pref_build_time">pref_build_time</string>
-    <string name="pref_enable_automatic_updates_key">pref_enable_automatic_updates_key</string>
+    <string name="pref_enable_automatic_updates_key">automatic_updates</string>
 
     <string name="pref_display_catalogue_as_list">pref_display_catalogue_as_list</string>
     <string name="pref_last_catalogue_source_key">pref_last_catalogue_source_key</string>
diff --git a/app/src/test/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarmTest.kt b/app/src/test/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarmTest.kt
index deddd2c1c6..0895523e1d 100644
--- a/app/src/test/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarmTest.kt
+++ b/app/src/test/java/eu/kanade/tachiyomi/data/library/LibraryUpdateAlarmTest.kt
@@ -5,6 +5,8 @@ import android.content.Context
 import android.content.Intent
 import android.os.Build
 import android.os.SystemClock
+import eu.kanade.tachiyomi.App
+import eu.kanade.tachiyomi.AppModule
 import eu.kanade.tachiyomi.BuildConfig
 import eu.kanade.tachiyomi.CustomRobolectricGradleTestRunner
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
@@ -17,6 +19,9 @@ import org.robolectric.Shadows.shadowOf
 import org.robolectric.annotation.Config
 import org.robolectric.shadows.ShadowAlarmManager
 import org.robolectric.shadows.ShadowApplication
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.InjektScope
+import uy.kohesive.injekt.registry.default.DefaultRegistrar
 
 @Config(constants = BuildConfig::class, sdk = intArrayOf(Build.VERSION_CODES.LOLLIPOP))
 @RunWith(CustomRobolectricGradleTestRunner::class)
@@ -30,6 +35,8 @@ class LibraryUpdateAlarmTest {
     fun setup() {
         app = ShadowApplication.getInstance()
         context = spy(app.applicationContext)
+        Injekt = InjektScope(DefaultRegistrar())
+        Injekt.importModule(AppModule(context as App))
 
         alarmManager = shadowOf(context.getSystemService(Context.ALARM_SERVICE) as AlarmManager)
     }