diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/SettingsActivity.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/SettingsActivity.kt
index 96f7f99e..e4758a47 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/SettingsActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/SettingsActivity.kt
@@ -40,6 +40,7 @@ class SettingsActivity : SimpleActivity() {
         setupChangeDateTimeFormat()
         setupFontSize()
         setupShowCharacterCounter()
+        setupUseSimpleCharacters()
         setupEnableDeliveryReports()
         setupLockScreenVisibility()
         updateTextColors(settings_scrollview)
@@ -131,6 +132,13 @@ class SettingsActivity : SimpleActivity() {
             config.showCharacterCounter = settings_show_character_counter.isChecked
         }
     }
+    private fun setupUseSimpleCharacters() {
+        settings_use_simple_characters.isChecked = config.useSimpleCharacters
+        settings_use_simple_characters_holder.setOnClickListener {
+            settings_use_simple_characters.toggle()
+            config.useSimpleCharacters = settings_use_simple_characters.isChecked
+        }
+    }
 
     private fun setupEnableDeliveryReports() {
         settings_enable_delivery_reports.isChecked = config.enableDeliveryReports
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
index f235f327..d50548d9 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
@@ -646,11 +646,13 @@ class ThreadActivity : SimpleActivity() {
     }
 
     private fun sendMessage() {
-        val msg = thread_type_message.value
+        var msg = thread_type_message.value
         if (msg.isEmpty() && attachmentUris.isEmpty()) {
             return
         }
 
+        msg = removeDiacriticsIfNeeded(msg)
+
         val numbers = ArrayList<String>()
         participants.forEach {
             it.phoneNumbers.forEach {
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt
index cb55e7c8..dc51d437 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/extensions/Context.kt
@@ -38,6 +38,7 @@ import com.simplemobiletools.smsmessenger.receivers.MarkAsReadReceiver
 import java.util.*
 import kotlin.collections.ArrayList
 import me.leolin.shortcutbadger.ShortcutBadger
+import java.text.Normalizer
 
 val Context.config: Config get() = Config.newInstance(applicationContext)
 
@@ -764,3 +765,13 @@ fun Context.getLockScreenVisibilityText(type: Int) = getString(
         else -> R.string.nothing
     }
 )
+
+fun Context.removeDiacriticsIfNeeded(text: String): String {
+    var msg = text
+    if (config.useSimpleCharacters) {
+        msg = Normalizer.normalize(msg, Normalizer.Form.NFD)
+        msg = msg.replace("\\p{InCombiningDiacriticalMarks}+".toRegex(), "")
+    }
+
+    return msg
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Config.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Config.kt
index e284b832..c6b6576d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Config.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Config.kt
@@ -18,6 +18,10 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getBoolean(SHOW_CHARACTER_COUNTER, false)
         set(showCharacterCounter) = prefs.edit().putBoolean(SHOW_CHARACTER_COUNTER, showCharacterCounter).apply()
 
+    var useSimpleCharacters: Boolean
+        get() = prefs.getBoolean(USE_SIMPLE_CHARACTERS, false)
+        set(useSimpleCharacters) = prefs.edit().putBoolean(USE_SIMPLE_CHARACTERS, useSimpleCharacters).apply()
+
     var enableDeliveryReports: Boolean
         get() = prefs.getBoolean(ENABLE_DELIVERY_REPORTS, true)
         set(enableDeliveryReports) = prefs.edit().putBoolean(ENABLE_DELIVERY_REPORTS, enableDeliveryReports).apply()
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Constants.kt
index 36025476..6fbb310e 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Constants.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/helpers/Constants.kt
@@ -13,6 +13,7 @@ const val SEARCHED_MESSAGE_ID = "searched_message_id"
 const val USE_SIM_ID_PREFIX = "use_sim_id_"
 const val NOTIFICATION_CHANNEL = "simple_sms_messenger"
 const val SHOW_CHARACTER_COUNTER = "show_character_counter"
+const val USE_SIMPLE_CHARACTERS = "use_simple_characters"
 const val LOCK_SCREEN_VISIBILITY = "lock_screen_visibility"
 const val ENABLE_DELIVERY_REPORTS = "enable_delivery_reports"
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/DirectReplyReceiver.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/DirectReplyReceiver.kt
index 8a4ee30c..79e333b8 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/DirectReplyReceiver.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/DirectReplyReceiver.kt
@@ -11,6 +11,7 @@ import com.simplemobiletools.commons.extensions.showErrorToast
 import com.simplemobiletools.commons.helpers.ensureBackgroundThread
 import com.simplemobiletools.smsmessenger.extensions.conversationsDB
 import com.simplemobiletools.smsmessenger.extensions.markThreadMessagesRead
+import com.simplemobiletools.smsmessenger.extensions.removeDiacriticsIfNeeded
 import com.simplemobiletools.smsmessenger.helpers.REPLY
 import com.simplemobiletools.smsmessenger.helpers.THREAD_ID
 import com.simplemobiletools.smsmessenger.helpers.THREAD_NUMBER
@@ -19,7 +20,9 @@ class DirectReplyReceiver : BroadcastReceiver() {
     override fun onReceive(context: Context, intent: Intent) {
         val address = intent.getStringExtra(THREAD_NUMBER)
         val threadId = intent.getLongExtra(THREAD_ID, 0L)
-        val msg = RemoteInput.getResultsFromIntent(intent).getCharSequence(REPLY)?.toString() ?: return
+        var msg = RemoteInput.getResultsFromIntent(intent).getCharSequence(REPLY)?.toString() ?: return
+
+        msg = context.removeDiacriticsIfNeeded(msg)
 
         val settings = Settings()
         settings.useSystemSending = true
diff --git a/app/src/main/res/layout/activity_settings.xml b/app/src/main/res/layout/activity_settings.xml
index 859fdf00..0d4ff987 100644
--- a/app/src/main/res/layout/activity_settings.xml
+++ b/app/src/main/res/layout/activity_settings.xml
@@ -195,6 +195,29 @@
 
         </RelativeLayout>
 
+        <RelativeLayout
+            android:id="@+id/settings_use_simple_characters_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:paddingStart="@dimen/normal_margin"
+            android:paddingTop="@dimen/activity_margin"
+            android:paddingEnd="@dimen/normal_margin"
+            android:paddingBottom="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_use_simple_characters"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/use_simple_characters"
+                app:switchPadding="@dimen/medium_margin" />
+
+        </RelativeLayout>
+
         <RelativeLayout
             android:id="@+id/settings_enable_delivery_reports_holder"
             android:layout_width="match_parent"
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 37651ec0..4fcfa37b 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Proč aplikace vyžaduje přístup k internetu?</string>
diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index d9067fb0..dba3e2b1 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Hvorfor kræver appen adgang til internettet?</string>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index d7e5e614..f8a464c5 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Warum benötigt diese App Internetzugriff?</string>
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index 73901649..63d34b27 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Αποστολέας και μήνυμα</string>
     <string name="sender_only">Αποστολέας μόνο</string>
     <string name="enable_delivery_reports">Ενεργοποίηση αναφορών παράδοσης</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Γιατί η εφαρμογή απαιτεί πρόσβαση στο Internet;</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index 0f2ec0f6..1f87d8d5 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">¿Por qué la aplicación requiere acceso a internet?</string>
diff --git a/app/src/main/res/values-fi/strings.xml b/app/src/main/res/values-fi/strings.xml
index 3f6b221f..16ff75bf 100644
--- a/app/src/main/res/values-fi/strings.xml
+++ b/app/src/main/res/values-fi/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Miksi sovellus vaatii Internet-yhteyden?</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index acf8de23..c8c84a92 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Pourquoi cette application a besoin d\'un accès à internet ?</string>
diff --git a/app/src/main/res/values-id/strings.xml b/app/src/main/res/values-id/strings.xml
index 0db16d26..0d67e3bc 100644
--- a/app/src/main/res/values-id/strings.xml
+++ b/app/src/main/res/values-id/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Mengapa aplikasi membutuhkan akses ke internet?</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index b6201852..e415666f 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Mittente e messaggio</string>
     <string name="sender_only">Solo mittente</string>
     <string name="enable_delivery_reports">Abilita conferma di consegna</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Perché l\'applicazione richiede l\'accesso ad internet?</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 8c5071ec..fa321c9e 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">なぜアプリ使用にインターネットへのアクセスが必要なのですか？</string>
diff --git a/app/src/main/res/values-lt/strings.xml b/app/src/main/res/values-lt/strings.xml
index ea039ad8..542561ea 100644
--- a/app/src/main/res/values-lt/strings.xml
+++ b/app/src/main/res/values-lt/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Why does the app require access to the internet?</string>
diff --git a/app/src/main/res/values-ml/strings.xml b/app/src/main/res/values-ml/strings.xml
index 366149ef..f6d9e372 100644
--- a/app/src/main/res/values-ml/strings.xml
+++ b/app/src/main/res/values-ml/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">അപ്ലിക്കേഷന് ഇന്റർനെറ്റിലേക്ക് ആവശ്യമായി വരുന്നത് എന്തുകൊണ്ട്?</string>
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index 0f9e313a..eebdf894 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Afzender en bericht</string>
     <string name="sender_only">Alleen afzender</string>
     <string name="enable_delivery_reports">Bezorgingsrapporten inschakelen</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Waarom heeft deze app toegang nodig tot het internet?</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 7bc60f8a..b4705dc0 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -51,6 +51,7 @@
     <string name="sender_and_message">Nadawca i treść</string>
     <string name="sender_only">Tylko nadawca</string>
     <string name="enable_delivery_reports">Włącz raporty doręczeń</string>
+    <string name="use_simple_characters">Używaj prostych znaków</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Dlaczego aplikacja wymaga dostępu do Internetu?</string>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index f6cf255b..c4d133b0 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Porque é que a aplicação necessita de aceder à Internet?</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index f6944577..2ac76d52 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -51,6 +51,7 @@
     <string name="sender_and_message">Отправитель и сообщение</string>
     <string name="sender_only">Только отправитель</string>
     <string name="enable_delivery_reports">Использовать отчёты о доставке</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Почему приложение требует доступ к интернету?</string>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index f1092bb8..b3c06f1e 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -51,6 +51,7 @@
     <string name="sender_and_message">Odosielateľ a správa</string>
     <string name="sender_only">Iba odosielateľ</string>
     <string name="enable_delivery_reports">Povoliť správy o doručení</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Prečo vyžaduje apka prístup na internet?</string>
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index f7a3224e..5785eeda 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Uygulama neden internete erişim gerektiriyor?</string>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index b0a239d0..a2156150 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Чому додаток потрубує доступу до інтернету?</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index b6542e07..9a49e535 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">为什么该应用需要访问互联网？</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a85b6837..68b1c3d0 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -49,6 +49,7 @@
     <string name="sender_and_message">Sender and message</string>
     <string name="sender_only">Sender only</string>
     <string name="enable_delivery_reports">Enable delivery reports</string>
+    <string name="use_simple_characters">Use simple characters</string>
 
     <!-- FAQ -->
     <string name="faq_1_title">Why does the app require access to the internet?</string>