diff --git a/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt b/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt
index 4ba74ec0..b5c9a97e 100644
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt
@@ -313,6 +313,16 @@ class PreferencesRepository @Inject constructor(
         get() = showNotesPreference.get()
         set(value) = showNotesPreference.set(value)
 
+    var developerMode: Boolean
+        get() = developerModePreference.get()
+        set(value) = developerModePreference.set(value)
+
+    private val developerModePreference: Preference<Boolean>
+        get() = flowSharedPref.getBoolean(
+            context.getString(R.string.pref_key_developer_mode),
+            context.resources.getBoolean(R.bool.pref_default_developer_mode)
+        )
+
     private val hiddenGradesPreference: Preference<Set<String>>
         get() {
             val defaultSet = context.resources.getStringArray(R.array.pref_default_hidden_grades).toSet()
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutAdapter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutAdapter.kt
index 35dec3b4..2aeadcf6 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutAdapter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutAdapter.kt
@@ -5,11 +5,15 @@ import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.core.content.res.ResourcesCompat
 import androidx.recyclerview.widget.RecyclerView
+import com.google.android.material.snackbar.Snackbar
+import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.databinding.ItemAboutBinding
 import io.github.wulkanowy.databinding.ScrollableHeaderAboutBinding
 import javax.inject.Inject
 
-class AboutAdapter @Inject constructor() : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+class AboutAdapter @Inject constructor(
+    private val preferencesRepository: PreferencesRepository
+) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
 
     private enum class ViewType(val id: Int) {
         ITEM_HEADER(1),
@@ -18,6 +22,7 @@ class AboutAdapter @Inject constructor() : RecyclerView.Adapter<RecyclerView.Vie
 
     var items = emptyList<Triple<String, String, Drawable?>>()
 
+    var developerModeClicks = 0
     var onClickListener: (name: String) -> Unit = {}
 
     override fun getItemCount() = items.size + 1
@@ -46,6 +51,19 @@ class AboutAdapter @Inject constructor() : RecyclerView.Adapter<RecyclerView.Vie
 
     private fun bindHeaderViewHolder(binding: ScrollableHeaderAboutBinding) {
         with(binding.aboutScrollableHeaderIcon) {
+            setOnClickListener {
+                if (++developerModeClicks == 5) {
+                    preferencesRepository.developerMode = true
+                    developerModeClicks = 0
+
+                    Snackbar.make(
+                        binding.root,
+                        "👍🏻",
+                        Snackbar.LENGTH_SHORT
+                    ).show()
+                }
+            }
+
             setImageDrawable(ResourcesCompat.getDrawableForDensity(
                 context.resources, context.applicationInfo.icon, 640, null)
             )
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/settings/SettingsFragment.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/settings/SettingsFragment.kt
index f8d1323c..f4503fad 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/settings/SettingsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/settings/SettingsFragment.kt
@@ -1,13 +1,22 @@
 package io.github.wulkanowy.ui.modules.settings
 
+import android.content.SharedPreferences
 import android.os.Bundle
+import android.view.View
+import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.PreferenceScreen
+import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.ui.base.BaseActivity
+import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.ui.modules.main.MainView
 import timber.log.Timber
+import javax.inject.Inject
 
-class SettingsFragment : PreferenceFragmentCompat(), MainView.TitledView, SettingsView {
+@AndroidEntryPoint
+class SettingsFragment : PreferenceFragmentCompat(),
+    SharedPreferences.OnSharedPreferenceChangeListener,
+    MainView.TitledView, SettingsView {
 
     companion object {
 
@@ -16,11 +25,26 @@ class SettingsFragment : PreferenceFragmentCompat(), MainView.TitledView, Settin
 
     override val titleStringId get() = R.string.settings_title
 
+    @Inject
+    lateinit var preferencesRepository: PreferencesRepository
+
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.scheme_preferences, rootKey)
+
+        val prefScreen: PreferenceScreen? = findPreference("settings_preferences")
+        val prefDeveloper: Preference? = findPreference("mod_settings")
+
+        if (!preferencesRepository.developerMode && prefScreen != null && prefDeveloper != null) {
+            prefScreen.removePreference(prefDeveloper)
+        }
+
         Timber.i("Settings view was initialized")
     }
 
+    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.scheme_preferences, rootKey)
+    }
+
     override fun showError(text: String, error: Throwable) {}
 
     override fun showMessage(text: String) {}
diff --git a/app/src/main/res/values-cs/mod_values.xml b/app/src/main/res/values-cs/mod_values.xml
index bbcb8acf..9fa41c6a 100644
--- a/app/src/main/res/values-cs/mod_values.xml
+++ b/app/src/main/res/values-cs/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Ospravedlněná absence</item>
         <item>Neznámá</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Režim pro vývojáře (přístup na tuto stránku)</string>
 </resources>
diff --git a/app/src/main/res/values-cs/preferences_defaults.xml b/app/src/main/res/values-cs/preferences_defaults.xml
new file mode 100644
index 00000000..a6b3daec
--- /dev/null
+++ b/app/src/main/res/values-cs/preferences_defaults.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 780d9351..f1763e91 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -883,4 +883,5 @@
     <string name="message_unmute">Zrušit ztlumení</string>
     <string name="message_mute_success">Ztlumili jste tohoto uživatele</string>
     <string name="message_unmute_success">Zrušili jste ztlumení tohoto uživatele</string>
+    <string name="pref_mod_settings_other_title">Jiné</string>
 </resources>
diff --git a/app/src/main/res/values-da-rDK/mod_values.xml b/app/src/main/res/values-da-rDK/mod_values.xml
index 5cb747a7..6a2e2abb 100644
--- a/app/src/main/res/values-da-rDK/mod_values.xml
+++ b/app/src/main/res/values-da-rDK/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Excused absence</item>
         <item>Unknown</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Developer mode (access to this page)</string>
 </resources>
diff --git a/app/src/main/res/values-da-rDK/strings.xml b/app/src/main/res/values-da-rDK/strings.xml
index 51275063..549b35e2 100644
--- a/app/src/main/res/values-da-rDK/strings.xml
+++ b/app/src/main/res/values-da-rDK/strings.xml
@@ -754,4 +754,5 @@
     <string name="error_feature_disabled">Feature disabled by your school</string>
     <string name="error_feature_not_available">Feature not available. Login in a mode other than Mobile API</string>
     <string name="error_field_required">This field is required</string>
+    <string name="pref_mod_settings_other_title">Other</string>
 </resources>
diff --git a/app/src/main/res/values-de/mod_values.xml b/app/src/main/res/values-de/mod_values.xml
index 9344adb9..de1adbf1 100644
--- a/app/src/main/res/values-de/mod_values.xml
+++ b/app/src/main/res/values-de/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Unentschuldigtes Fehlen</item>
         <item>Unbekannt</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Entwicklermodus (Zugang zu dieser Seite)</string>
 </resources>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 7bc5aa99..02a624eb 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -789,4 +789,5 @@
     <string name="message_unmute">Unmute</string>
     <string name="message_mute_success">You have muted this user</string>
     <string name="message_unmute_success">You have unmuted this user</string>
+    <string name="pref_mod_settings_other_title">Sonstiges</string>
 </resources>
diff --git a/app/src/main/res/values-es-rES/mod_values.xml b/app/src/main/res/values-es-rES/mod_values.xml
index 5cb747a7..6a2e2abb 100644
--- a/app/src/main/res/values-es-rES/mod_values.xml
+++ b/app/src/main/res/values-es-rES/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Excused absence</item>
         <item>Unknown</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Developer mode (access to this page)</string>
 </resources>
diff --git a/app/src/main/res/values-es-rES/strings.xml b/app/src/main/res/values-es-rES/strings.xml
index 51275063..549b35e2 100644
--- a/app/src/main/res/values-es-rES/strings.xml
+++ b/app/src/main/res/values-es-rES/strings.xml
@@ -754,4 +754,5 @@
     <string name="error_feature_disabled">Feature disabled by your school</string>
     <string name="error_feature_not_available">Feature not available. Login in a mode other than Mobile API</string>
     <string name="error_field_required">This field is required</string>
+    <string name="pref_mod_settings_other_title">Other</string>
 </resources>
diff --git a/app/src/main/res/values-it-rIT/mod_values.xml b/app/src/main/res/values-it-rIT/mod_values.xml
index cdb6ac02..eda5f012 100644
--- a/app/src/main/res/values-it-rIT/mod_values.xml
+++ b/app/src/main/res/values-it-rIT/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Excused absence</item>
         <item>Unknown</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Developer mode (access to this page)</string>
 </resources>
diff --git a/app/src/main/res/values-it-rIT/strings.xml b/app/src/main/res/values-it-rIT/strings.xml
index 51275063..549b35e2 100644
--- a/app/src/main/res/values-it-rIT/strings.xml
+++ b/app/src/main/res/values-it-rIT/strings.xml
@@ -754,4 +754,5 @@
     <string name="error_feature_disabled">Feature disabled by your school</string>
     <string name="error_feature_not_available">Feature not available. Login in a mode other than Mobile API</string>
     <string name="error_field_required">This field is required</string>
+    <string name="pref_mod_settings_other_title">Other</string>
 </resources>
diff --git a/app/src/main/res/values-pl/mod_values.xml b/app/src/main/res/values-pl/mod_values.xml
index b376f0fe..6e1b5841 100644
--- a/app/src/main/res/values-pl/mod_values.xml
+++ b/app/src/main/res/values-pl/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Nieobecność usprawiedliwiona</item>
         <item>Nieznane</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Tryb dewelopera (dostęp do tej strony)</string>
 </resources>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index d1d603b6..33499cee 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -883,4 +883,5 @@
     <string name="message_unmute">Wyłącz wyciszenie</string>
     <string name="message_mute_success">Wyciszyleś tego użytkownika</string>
     <string name="message_unmute_success">Wyłączyłeś wyciszenie tego użytkownika</string>
+    <string name="pref_mod_settings_other_title">Inne</string>
 </resources>
diff --git a/app/src/main/res/values-ru/mod_values.xml b/app/src/main/res/values-ru/mod_values.xml
index 25caf0dd..481009fd 100644
--- a/app/src/main/res/values-ru/mod_values.xml
+++ b/app/src/main/res/values-ru/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Отсутствие без уважительной причины</item>
         <item>Неизвестный</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Режим разработчика (доступ к этой странице)</string>
 </resources>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 0e7e0e1d..f9bbe14a 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -883,4 +883,5 @@
     <string name="message_unmute">Unmute</string>
     <string name="message_mute_success">You have muted this user</string>
     <string name="message_unmute_success">You have unmuted this user</string>
+    <string name="pref_mod_settings_other_title">Прочее</string>
 </resources>
diff --git a/app/src/main/res/values-sk/mod_values.xml b/app/src/main/res/values-sk/mod_values.xml
index c740440d..97762381 100644
--- a/app/src/main/res/values-sk/mod_values.xml
+++ b/app/src/main/res/values-sk/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Ospravedlnená absencia</item>
         <item>Neznámy</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Vývojársky režim (prístup na túto stránku)</string>
 </resources>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index 9dbf7282..c35a3ee7 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -883,4 +883,5 @@
     <string name="message_unmute">Zrušiť stlmenie</string>
     <string name="message_mute_success">Stlmili ste tohto používateľa</string>
     <string name="message_unmute_success">Zrušili ste stlmenie tohto používateľa</string>
+    <string name="pref_mod_settings_other_title">Iné</string>
 </resources>
diff --git a/app/src/main/res/values-uk/mod_values.xml b/app/src/main/res/values-uk/mod_values.xml
index 9fa72b9d..bf84ef74 100644
--- a/app/src/main/res/values-uk/mod_values.xml
+++ b/app/src/main/res/values-uk/mod_values.xml
@@ -16,4 +16,5 @@
         <item>Поважна відсутність</item>
         <item>Невідомо</item>
     </string-array>
+    <string name="pref_mod_settings_developer_mode">Режим розробника (доступ до цієї сторінки)</string>
 </resources>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 2d8ac1f4..80cef3c9 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -883,4 +883,5 @@
     <string name="message_unmute">Ввімкнути сповіщення</string>
     <string name="message_mute_success">Ви ігноруєте цього користувача</string>
     <string name="message_unmute_success">Ви не ігноруєте цього користувача</string>
+    <string name="pref_mod_settings_other_title">Інше</string>
 </resources>
diff --git a/app/src/main/res/values/mod_values.xml b/app/src/main/res/values/mod_values.xml
index 204d0ae6..dd3c8001 100644
--- a/app/src/main/res/values/mod_values.xml
+++ b/app/src/main/res/values/mod_values.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="pref_mod_settings_title">Wulkanowy MOD settings</string>
+    <string name="pref_mod_settings_title">Hidden settings</string>
     <string name="pref_mod_settings_hidden_attendance_items">Hidden attendance items</string>
     <string name="pref_hidden_settings_attendance_percentage">Attendance percentage</string>
     <string name="pref_hidden_settings_hidden_grades">Hidden grades</string>
@@ -8,10 +8,15 @@
     <string name="pref_key_hidden_grades" translatable="false">hidden_grades</string>
     <string name="pref_key_attendance_items" translatable="false">attendance_items</string>
     <string name="pref_key_attendance_percentage" translatable="false">attendance_percentage</string>
+    <string name="pref_key_developer_mode" translatable="false">developer_mode</string>
     <string name="pref_default_attendance_percentage" translatable="false">-1</string>
-
-    <string name="pref_mod_settings_show_notes">Show notes</string>
     <string name="pref_key_show_notes" translatable="false">show_notes</string>
+
+    <string name="pref_mod_settings_developer_mode">Developer mode (access to this page)</string>
+    <string name="pref_mod_settings_developer_mode_summary">After disabling this setting, you will not be able to access this page anymore, but the settings will still be applied.</string>
+    <string name="pref_mod_settings_show_notes">Show notes</string>
+
+    <bool name="pref_default_developer_mode">false</bool>
     <bool name="pref_default_show_notes">true</bool>
 
     <string-array name="mod_settings_attendance_entries">
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 56cf94f0..48a04435 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -884,4 +884,5 @@
     <string name="message_unmute">Unmute</string>
     <string name="message_mute_success">You have muted this user</string>
     <string name="message_unmute_success">You have unmuted this user</string>
+    <string name="pref_mod_settings_other_title">Other</string>
 </resources>
diff --git a/app/src/main/res/xml/scheme_preferences.xml b/app/src/main/res/xml/scheme_preferences.xml
index b0d37b93..11b84a92 100644
--- a/app/src/main/res/xml/scheme_preferences.xml
+++ b/app/src/main/res/xml/scheme_preferences.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto">
+<PreferenceScreen
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    app:key="settings_preferences">
     <Preference
         app:fragment="io.github.wulkanowy.ui.modules.settings.appearance.AppearanceFragment"
         app:icon="@drawable/ic_settings_appearance"
diff --git a/app/src/main/res/xml/scheme_preferences_mod_settings.xml b/app/src/main/res/xml/scheme_preferences_mod_settings.xml
index 4deb55dd..b6588511 100644
--- a/app/src/main/res/xml/scheme_preferences_mod_settings.xml
+++ b/app/src/main/res/xml/scheme_preferences_mod_settings.xml
@@ -42,4 +42,15 @@
             app:singleLineTitle="false"
             app:title="@string/pref_mod_settings_show_notes" />
     </PreferenceCategory>
+    <PreferenceCategory
+        app:iconSpaceReserved="false"
+        app:title="@string/pref_mod_settings_other_title">
+        <SwitchPreferenceCompat
+            app:defaultValue="@bool/pref_default_developer_mode"
+            app:iconSpaceReserved="false"
+            app:key="@string/pref_key_developer_mode"
+            app:singleLineTitle="false"
+            app:title="@string/pref_mod_settings_developer_mode"
+            app:summary="@string/pref_mod_settings_developer_mode_summary"/>
+    </PreferenceCategory>
 </PreferenceScreen>
diff --git a/app/src/play/res/xml/scheme_preferences.xml b/app/src/play/res/xml/scheme_preferences.xml
index 40ee11b3..f9c1c0bc 100644
--- a/app/src/play/res/xml/scheme_preferences.xml
+++ b/app/src/play/res/xml/scheme_preferences.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto">
+<PreferenceScreen
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    app:key="settings_preferences">
     <Preference
         app:fragment="io.github.wulkanowy.ui.modules.settings.appearance.AppearanceFragment"
         app:icon="@drawable/ic_settings_appearance"