diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index bedb491bc..beb2996be 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -809,6 +809,15 @@
     <string name="menu_order_confirm_title">Restartování aplikace</string>
     <string name="menu_order_confirm_content">Pro uložení změn je nutné aplikaci restartovat</string>
     <string name="menu_order_confirm_restart">Restartovat</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">Žádné internetové připojení</string>
     <string name="error_invalid_device_datetime">Vyskytla se chyba. Zkontrolujte hodiny svého zařízení</string>
diff --git a/app/src/main/res/values-da-rDK/strings.xml b/app/src/main/res/values-da-rDK/strings.xml
index ebec11b25..b9de57f77 100644
--- a/app/src/main/res/values-da-rDK/strings.xml
+++ b/app/src/main/res/values-da-rDK/strings.xml
@@ -721,6 +721,15 @@
     <string name="menu_order_confirm_title">Application restart</string>
     <string name="menu_order_confirm_content">The application must restart for the changes to be saved</string>
     <string name="menu_order_confirm_restart">Restart</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">No internet connection</string>
     <string name="error_invalid_device_datetime">An error occurred. Check your device clock</string>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 1e1785bff..4fdd71b50 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -721,6 +721,15 @@
     <string name="menu_order_confirm_title">Application restart</string>
     <string name="menu_order_confirm_content">The application must restart for the changes to be saved</string>
     <string name="menu_order_confirm_restart">Restart</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">Keine Internetverbindung</string>
     <string name="error_invalid_device_datetime">Es ist ein Fehler aufgetreten. Überprüfen Sie Ihre Geräteuhr</string>
diff --git a/app/src/main/res/values-es-rES/strings.xml b/app/src/main/res/values-es-rES/strings.xml
index ebec11b25..b9de57f77 100644
--- a/app/src/main/res/values-es-rES/strings.xml
+++ b/app/src/main/res/values-es-rES/strings.xml
@@ -721,6 +721,15 @@
     <string name="menu_order_confirm_title">Application restart</string>
     <string name="menu_order_confirm_content">The application must restart for the changes to be saved</string>
     <string name="menu_order_confirm_restart">Restart</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">No internet connection</string>
     <string name="error_invalid_device_datetime">An error occurred. Check your device clock</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index f797a4dcb..207b12e98 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -809,6 +809,15 @@
     <string name="menu_order_confirm_title">Ponowne uruchomienie aplikacji</string>
     <string name="menu_order_confirm_content">W celu zapisania zmian aplikacja musi zostać ponownie uruchomiona</string>
     <string name="menu_order_confirm_restart">Uruchom ponownie</string>
+    <!--Auth-->
+    <string name="auth_api_error">Autoryzacja została odrzucona. Podano dane niezgodne z danymi w sekretariacie.</string>
+    <string name="auth_invalid_error">Nieprawidłowy PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Potwierdź</string>
+    <string name="auth_success">Autoryzacja zakończona pomyślnie</string>
+    <string name="auth_title">Autoryzacja</string>
+    <string name="auth_description">Rodzicu, musimy mieć pewność, że Twój adres e-mail został powiązany z prawidłowym kontem ucznia. W celu autoryzacji konta podaj numer PESEL ucznia &lt;b&gt;%1$s&lt;/b&gt; w polu poniżej</string>
+    <string name="auth_button_skip">Na razie pomiń</string>
     <!--Errors-->
     <string name="error_no_internet">Brak połączenia z internetem</string>
     <string name="error_invalid_device_datetime">Wystąpił błąd. Sprawdź poprawność daty w urządzeniu</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 7a42e3880..726e95465 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -778,7 +778,7 @@
     <string name="pref_advanced_category_summary">Значения плюса и минуса, расчёт средней оценки</string>
     <string name="pref_advanced_category">Расширенные</string>
     <string name="pref_about_category_summary">Версия приложения, разработчики, соц. сети</string>
-    <string name="pref_ads_category_summary">Посмотреть рекламу, чтобы поддержать преокт</string>
+    <string name="pref_ads_category_summary">Displaying advertisements, project support</string>
     <!--Notification Channels-->
     <string name="channel_new_grades">Новые оценки</string>
     <string name="channel_new_homework">Новое домашнее задание</string>
@@ -809,6 +809,15 @@
     <string name="menu_order_confirm_title">Перезапуск приложение</string>
     <string name="menu_order_confirm_content">Для сохранения изменений необходимо перезапустить приложение</string>
     <string name="menu_order_confirm_restart">Перезапустить</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">Интернет-соединение отсутствует</string>
     <string name="error_invalid_device_datetime">Произошла ошибка. Проверьте время на вашем устройстве</string>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index cde3178bb..7e42c6cd4 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -809,6 +809,15 @@
     <string name="menu_order_confirm_title">Reštartovanie aplikácie</string>
     <string name="menu_order_confirm_content">Pre uloženie zmien je nutné aplikáciu reštartovať</string>
     <string name="menu_order_confirm_restart">Reštartovať</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">Žiadne internetové pripojenie</string>
     <string name="error_invalid_device_datetime">Vyskytla sa chyba. Skontrolujte hodiny svojho zariadenia</string>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index 9602aabba..66cd23870 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -809,6 +809,15 @@
     <string name="menu_order_confirm_title">Перезавантаження додатку</string>
     <string name="menu_order_confirm_content">Додаток потрібно перезавантажити для збереження змін</string>
     <string name="menu_order_confirm_restart">Перезавантажити</string>
+    <!--Auth-->
+    <string name="auth_api_error">Authorization has been rejected. The data provided does not match the records in the secretary\'s office.</string>
+    <string name="auth_invalid_error">Invalid PESEL</string>
+    <string name="auth_pesel">PESEL</string>
+    <string name="auth_button">Authorize</string>
+    <string name="auth_success">Authorization completed successfully</string>
+    <string name="auth_title">Authorization</string>
+    <string name="auth_description">To operate the application, we need to confirm your identity. Please enter the student\'s PESEL &lt;b&gt;%1$s&lt;/b&gt; in the field below</string>
+    <string name="auth_button_skip">Skip for now</string>
     <!--Errors-->
     <string name="error_no_internet">Немає з\'єднання з інтернетом</string>
     <string name="error_invalid_device_datetime">Сталася помилка. Перевірте годинник пристрою</string>