diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/EditText.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/EditText.kt
deleted file mode 100644
index f4362f14..00000000
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/EditText.kt
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.simplemobiletools.contacts.pro.extensions
-
-import android.view.KeyEvent
-import android.widget.EditText
-
-fun EditText.addCharacter(char: Char) {
-    dispatchKeyEvent(getKeyEvent(getCharKeyCode(char)))
-}
-
-fun EditText.getKeyEvent(keyCode: Int) = KeyEvent(0, 0, KeyEvent.ACTION_DOWN, keyCode, 0)
-
-private fun getCharKeyCode(char: Char) = when (char) {
-    '0' -> KeyEvent.KEYCODE_0
-    '1' -> KeyEvent.KEYCODE_1
-    '2' -> KeyEvent.KEYCODE_2
-    '3' -> KeyEvent.KEYCODE_3
-    '4' -> KeyEvent.KEYCODE_4
-    '5' -> KeyEvent.KEYCODE_5
-    '6' -> KeyEvent.KEYCODE_6
-    '7' -> KeyEvent.KEYCODE_7
-    '8' -> KeyEvent.KEYCODE_8
-    '9' -> KeyEvent.KEYCODE_9
-    '*' -> KeyEvent.KEYCODE_STAR
-    '+' -> KeyEvent.KEYCODE_PLUS
-    else -> KeyEvent.KEYCODE_POUND
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Config.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Config.kt
index bf46bc92..678cf6ed 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Config.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Config.kt
@@ -1,11 +1,7 @@
 package com.simplemobiletools.contacts.pro.helpers
 
 import android.content.Context
-import android.net.Uri
-import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 import com.simplemobiletools.commons.helpers.BaseConfig
-import com.simplemobiletools.contacts.pro.models.SpeedDial
 
 class Config(context: Context) : BaseConfig(context) {
     companion object {
@@ -73,26 +69,6 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getBoolean(SHOW_PRIVATE_CONTACTS, true)
         set(showPrivateContacts) = prefs.edit().putBoolean(SHOW_PRIVATE_CONTACTS, showPrivateContacts).apply()
 
-    fun saveCustomSIM(number: String, SIMlabel: String) {
-        prefs.edit().putString(REMEMBER_SIM_PREFIX + number, Uri.encode(SIMlabel)).apply()
-    }
-
-    fun getCustomSIM(number: String) = prefs.getString(REMEMBER_SIM_PREFIX + number, "")
-
-    fun getSpeedDialValues(): ArrayList<SpeedDial> {
-        val speedDialType = object : TypeToken<List<SpeedDial>>() {}.type
-        val speedDialValues = Gson().fromJson<ArrayList<SpeedDial>>(speedDial, speedDialType) ?: ArrayList(1)
-
-        for (i in 1..9) {
-            val speedDial = SpeedDial(i, "", "")
-            if (speedDialValues.firstOrNull { it.id == i } == null) {
-                speedDialValues.add(speedDial)
-            }
-        }
-
-        return speedDialValues
-    }
-
     var wasDialerMigrationShown: Boolean
         get() = prefs.getBoolean(WAS_DIALER_MIGRATION_SHOWN, false)
         set(wasDialerMigrationShown) = prefs.edit().putBoolean(WAS_DIALER_MIGRATION_SHOWN, wasDialerMigrationShown).apply()
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Constants.kt
index 358c8d48..ede8642b 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Constants.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/helpers/Constants.kt
@@ -22,7 +22,6 @@ const val SHOW_DIALPAD_BUTTON = "show_dialpad_button"
 const val SPEED_DIAL = "speed_dial"
 const val LAST_EXPORT_PATH = "last_export_path"
 const val WAS_LOCAL_ACCOUNT_INITIALIZED = "was_local_account_initialized"
-const val REMEMBER_SIM_PREFIX = "remember_sim_"
 const val SHOW_PRIVATE_CONTACTS = "show_private_contacts"
 const val WAS_DIALER_MIGRATION_SHOWN = "was_dialer_migration_shown"
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/interfaces/RemoveSpeedDialListener.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/interfaces/RemoveSpeedDialListener.kt
deleted file mode 100644
index ccb59777..00000000
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/interfaces/RemoveSpeedDialListener.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.simplemobiletools.contacts.pro.interfaces
-
-interface RemoveSpeedDialListener {
-    fun removeSpeedDial(ids: ArrayList<Int>)
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/CallContact.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/CallContact.kt
deleted file mode 100644
index 2390f8b7..00000000
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/CallContact.kt
+++ /dev/null
@@ -1,4 +0,0 @@
-package com.simplemobiletools.contacts.pro.models
-
-// a simpler Contact model containing just info needed at the call screen
-data class CallContact(var name: String, var photoUri: String, var number: String)
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/SpeedDial.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/SpeedDial.kt
deleted file mode 100644
index a54a10f1..00000000
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/models/SpeedDial.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.simplemobiletools.contacts.pro.models
-
-data class SpeedDial(val id: Int, var number: String, var displayName: String) {
-    fun isValid() = number.trim().isNotEmpty()
-}