diff --git a/app/src/main/java/info/nightscout/androidaps/activities/MyPreferenceFragment.kt b/app/src/main/java/info/nightscout/androidaps/activities/MyPreferenceFragment.kt
index 8770925cb5..5da167b74b 100644
--- a/app/src/main/java/info/nightscout/androidaps/activities/MyPreferenceFragment.kt
+++ b/app/src/main/java/info/nightscout/androidaps/activities/MyPreferenceFragment.kt
@@ -8,17 +8,17 @@ import android.os.Bundle
 import androidx.annotation.XmlRes
 import androidx.preference.*
 import dagger.android.support.AndroidSupportInjection
-import info.nightscout.androidaps.interfaces.Config
 import info.nightscout.androidaps.R
 import info.nightscout.androidaps.danaRKorean.DanaRKoreanPlugin
 import info.nightscout.androidaps.danaRv2.DanaRv2Plugin
 import info.nightscout.androidaps.danar.DanaRPlugin
 import info.nightscout.androidaps.danars.DanaRSPlugin
 import info.nightscout.androidaps.diaconn.DiaconnG8Plugin
-import info.nightscout.androidaps.interfaces.Profile
 import info.nightscout.androidaps.events.EventPreferenceChange
 import info.nightscout.androidaps.events.EventRebuildTabs
+import info.nightscout.androidaps.interfaces.Config
 import info.nightscout.androidaps.interfaces.PluginBase
+import info.nightscout.androidaps.interfaces.Profile
 import info.nightscout.androidaps.interfaces.ProfileFunction
 import info.nightscout.androidaps.plugin.general.openhumans.OpenHumansUploader
 import info.nightscout.androidaps.plugins.aps.loop.LoopPlugin
@@ -43,17 +43,12 @@ import info.nightscout.androidaps.plugins.pump.virtual.VirtualPumpPlugin
 import info.nightscout.androidaps.plugins.sensitivity.SensitivityAAPSPlugin
 import info.nightscout.androidaps.plugins.sensitivity.SensitivityOref1Plugin
 import info.nightscout.androidaps.plugins.sensitivity.SensitivityWeightedAveragePlugin
-import info.nightscout.androidaps.plugins.source.DexcomPlugin
-import info.nightscout.androidaps.plugins.source.EversensePlugin
-import info.nightscout.androidaps.plugins.source.GlimpPlugin
-import info.nightscout.androidaps.plugins.source.PoctechPlugin
-import info.nightscout.androidaps.plugins.source.TomatoPlugin
-import info.nightscout.androidaps.plugins.source.GlunovoPlugin
-import info.nightscout.shared.SafeParse
+import info.nightscout.androidaps.plugins.source.*
 import info.nightscout.androidaps.utils.alertDialogs.OKDialog.show
 import info.nightscout.androidaps.utils.protection.PasswordCheck
-import info.nightscout.androidaps.utils.protection.ProtectionCheck
+import info.nightscout.androidaps.utils.protection.ProtectionCheck.ProtectionType.*
 import info.nightscout.androidaps.utils.resources.ResourceHelper
+import info.nightscout.shared.SafeParse
 import info.nightscout.shared.sharedPreferences.SP
 import javax.inject.Inject
 
@@ -239,7 +234,7 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
                 rh.gs(R.string.key_application_protection) == key ||
                 rh.gs(R.string.key_bolus_protection) == key) &&
             sp.getString(R.string.key_master_password, "") == "" &&
-            sp.getInt(key, ProtectionCheck.ProtectionType.NONE.ordinal) == ProtectionCheck.ProtectionType.BIOMETRIC.ordinal
+            sp.getInt(key, NONE.ordinal) == BIOMETRIC.ordinal
         ) {
             activity?.let {
                 val title = rh.gs(R.string.unsecure_fallback_biometric)
@@ -249,9 +244,9 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
         }
 
         // Master password erased with activated Biometric protection
-        val isBiometricActivated = sp.getInt(R.string.key_settings_protection, ProtectionCheck.ProtectionType.NONE.ordinal) == ProtectionCheck.ProtectionType.BIOMETRIC.ordinal ||
-            sp.getInt(R.string.key_application_protection, ProtectionCheck.ProtectionType.NONE.ordinal) == ProtectionCheck.ProtectionType.BIOMETRIC.ordinal ||
-            sp.getInt(R.string.key_bolus_protection, ProtectionCheck.ProtectionType.NONE.ordinal) == ProtectionCheck.ProtectionType.BIOMETRIC.ordinal
+        val isBiometricActivated = sp.getInt(R.string.key_settings_protection, NONE.ordinal) == BIOMETRIC.ordinal ||
+            sp.getInt(R.string.key_application_protection, NONE.ordinal) == BIOMETRIC.ordinal ||
+            sp.getInt(R.string.key_bolus_protection, NONE.ordinal) == BIOMETRIC.ordinal
         if (rh.gs(R.string.key_master_password) == key && sp.getString(key, "") == "" && isBiometricActivated) {
             activity?.let {
                 val title = rh.gs(R.string.unsecure_fallback_biometric)
@@ -322,26 +317,35 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
         if (pref is ListPreference) {
             pref.setSummary(pref.entry)
             // Preferences
-            // Preferences
             if (pref.getKey() == rh.gs(R.string.key_settings_protection)) {
                 val pass: Preference? = findPreference(rh.gs(R.string.key_settings_password))
-                if (pass != null) pass.isEnabled = pref.value == ProtectionCheck.ProtectionType.CUSTOM_PASSWORD.ordinal.toString()
+                val usePassword = pref.value == CUSTOM_PASSWORD.ordinal.toString()
+                pass?.let { it.isVisible = usePassword }
+                val pin: Preference? = findPreference(rh.gs(R.string.key_settings_pin))
+                val usePin = pref.value == CUSTOM_PIN.ordinal.toString()
+                pin?.let { it.isVisible = usePin }
             }
             // Application
-            // Application
             if (pref.getKey() == rh.gs(R.string.key_application_protection)) {
                 val pass: Preference? = findPreference(rh.gs(R.string.key_application_password))
-                if (pass != null) pass.isEnabled = pref.value == ProtectionCheck.ProtectionType.CUSTOM_PASSWORD.ordinal.toString()
+                val usePassword = pref.value == CUSTOM_PASSWORD.ordinal.toString()
+                pass?.let { it.isVisible = usePassword }
+                val pin: Preference? = findPreference(rh.gs(R.string.key_application_pin))
+                val usePin = pref.value == CUSTOM_PIN.ordinal.toString()
+                pin?.let { it.isVisible = usePin }
             }
             // Bolus
-            // Bolus
             if (pref.getKey() == rh.gs(R.string.key_bolus_protection)) {
                 val pass: Preference? = findPreference(rh.gs(R.string.key_bolus_password))
-                if (pass != null) pass.isEnabled = pref.value == ProtectionCheck.ProtectionType.CUSTOM_PASSWORD.ordinal.toString()
+                val usePassword = pref.value == CUSTOM_PASSWORD.ordinal.toString()
+                pass?.let { it.isVisible = usePassword }
+                val pin: Preference? = findPreference(rh.gs(R.string.key_bolus_pin))
+                val usePin = pref.value == CUSTOM_PIN.ordinal.toString()
+                pin?.let { it.isVisible = usePin }
             }
         }
         if (pref is EditTextPreference) {
-            if (pref.getKey().contains("password") || pref.getKey().contains("secret")) {
+            if (pref.getKey().contains("password") || pref.getKey().contains("pin") || pref.getKey().contains("secret")) {
                 pref.setSummary("******")
             } else if (pref.text != null) {
                 pref.dialogMessage = pref.dialogMessage
@@ -357,7 +361,10 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
             rh.gs(R.string.key_bolus_password),
             rh.gs(R.string.key_master_password),
             rh.gs(R.string.key_application_password),
-            rh.gs(R.string.key_settings_password)
+            rh.gs(R.string.key_settings_password),
+            rh.gs(R.string.key_bolus_pin),
+            rh.gs(R.string.key_application_pin),
+            rh.gs(R.string.key_settings_pin)
         )
 
         if (pref is Preference) {
@@ -365,7 +372,11 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
                 if (sp.getString(pref.key, "").startsWith("hmac:")) {
                     pref.summary = "******"
                 } else {
-                    pref.summary = rh.gs(R.string.password_not_set)
+                    if (pref.getKey().contains("pin")) {
+                        pref.summary = rh.gs(R.string.pin_not_set)
+                    }else {
+                        pref.summary = rh.gs(R.string.password_not_set)
+                    }
                 }
             }
         }
@@ -411,6 +422,18 @@ class MyPreferenceFragment : PreferenceFragmentCompat(), OnSharedPreferenceChang
                 passwordCheck.setPassword(context, R.string.application_password, R.string.key_application_password)
                 return true
             }
+            if (preference.key == rh.gs(R.string.key_settings_pin)) {
+                passwordCheck.setPassword(context, R.string.settings_pin, R.string.key_settings_pin, pinInput = true)
+                return true
+            }
+            if (preference.key == rh.gs(R.string.key_bolus_pin)) {
+                passwordCheck.setPassword(context, R.string.bolus_pin, R.string.key_bolus_pin, pinInput = true)
+                return true
+            }
+            if (preference.key == rh.gs(R.string.key_application_pin)) {
+                passwordCheck.setPassword(context, R.string.application_pin, R.string.key_application_pin, pinInput = true)
+                return true
+            }
             // NSClient copy settings
             if (preference.key == rh.gs(R.string.key_statuslights_copy_ns)) {
                 nsSettingStatus.copyStatusLightsNsSettings(context)
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 0453fe87bb..0e006e2bbf 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -136,6 +136,7 @@
         <item>@string/biometric</item>
         <item>@string/master_password</item>
         <item>@string/custom_password</item>
+        <item>@string/custom_pin</item>
     </string-array>
 
     <string-array name="protectiontypeValues">
@@ -143,6 +144,7 @@
         <item>1</item>
         <item>2</item>
         <item>3</item>
+        <item>4</item>
     </string-array>
 
 </resources>
diff --git a/app/src/main/res/xml/pref_general.xml b/app/src/main/res/xml/pref_general.xml
index ee1076fcab..6b43facf2d 100644
--- a/app/src/main/res/xml/pref_general.xml
+++ b/app/src/main/res/xml/pref_general.xml
@@ -46,10 +46,13 @@
                 android:title="@string/settings_protection" />
 
             <Preference
-                android:inputType="textPassword"
                 android:key="@string/key_settings_password"
                 android:title="@string/settings_password" />
 
+            <Preference
+                android:key="@string/key_settings_pin"
+                android:title="@string/settings_pin" />
+
             <ListPreference
                 android:defaultValue="0"
                 android:entries="@array/protectiontype"
@@ -58,10 +61,13 @@
                 android:title="@string/application_protection" />
 
             <Preference
-                android:inputType="textPassword"
                 android:key="@string/key_application_password"
                 android:title="@string/application_password" />
 
+            <Preference
+                android:key="@string/key_application_pin"
+                android:title="@string/application_pin" />
+
             <ListPreference
                 android:defaultValue="0"
                 android:entries="@array/protectiontype"
@@ -70,10 +76,13 @@
                 android:title="@string/bolus_protection" />
 
             <Preference
-                android:inputType="textPassword"
                 android:key="@string/key_bolus_password"
                 android:title="@string/bolus_password" />
 
+            <Preference
+                android:key="@string/key_bolus_pin"
+                android:title="@string/bolus_pin" />
+
         </PreferenceCategory>
 
         <info.nightscout.androidaps.skins.SkinListPreference
diff --git a/core/src/main/java/info/nightscout/androidaps/utils/protection/PasswordCheck.kt b/core/src/main/java/info/nightscout/androidaps/utils/protection/PasswordCheck.kt
index c9099d0b54..ce50a56fbb 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/protection/PasswordCheck.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/protection/PasswordCheck.kt
@@ -2,6 +2,7 @@ package info.nightscout.androidaps.utils.protection
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.text.InputType
 import android.view.LayoutInflater
 import android.view.View
 import android.widget.EditText
@@ -33,13 +34,12 @@ class PasswordCheck @Inject constructor(
     Asks for "managed" kind of password, checking if it is valid.
      */
     @SuppressLint("InflateParams")
-    fun queryPassword(context: Context, @StringRes labelId: Int, @StringRes preference: Int, ok: ((String) -> Unit)?, cancel: (() -> Unit)? = null, fail: (() -> Unit)? = null) {
+    fun queryPassword(context: Context, @StringRes labelId: Int, @StringRes preference: Int, ok: ((String) -> Unit)?, cancel: (() -> Unit)? = null, fail: (() -> Unit)? = null, pinInput: Boolean = false) {
         val password = sp.getString(preference, "")
         if (password == "") {
             ok?.invoke("")
             return
         }
-
         val promptsView = LayoutInflater.from(context).inflate(R.layout.passwordprompt, null)
         val alertDialogBuilder = AlertDialogHelper.Builder(context, R.style.DialogTheme)
         alertDialogBuilder.setView(promptsView)
@@ -48,7 +48,10 @@ class PasswordCheck @Inject constructor(
         val userInput2 = promptsView.findViewById<View>(R.id.password_prompt_pass_confirm) as EditText
 
         userInput2.visibility = View.GONE
-
+        if (pinInput) {
+            userInput.setHint(R.string.pin_hint)
+            userInput.inputType = InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_VARIATION_PASSWORD
+        }
         val autoFillHintPasswordKind = context.getString(preference)
         userInput.setAutofillHints(View.AUTOFILL_HINT_PASSWORD, "aaps_${autoFillHintPasswordKind}")
         userInput.importantForAutofill = View.IMPORTANT_FOR_AUTOFILL_YES
@@ -60,7 +63,8 @@ class PasswordCheck @Inject constructor(
                 val enteredPassword = userInput.text.toString()
                 if (cryptoUtil.checkPassword(enteredPassword, password)) ok?.invoke(enteredPassword)
                 else {
-                    ToastUtils.errorToast(context, context.getString(R.string.wrongpassword))
+                    val msg = if (pinInput) R.string.wrongpin else R.string.wrongpassword
+                    ToastUtils.errorToast(context, context.getString(msg))
                     fail?.invoke()
                 }
             }
@@ -74,14 +78,19 @@ class PasswordCheck @Inject constructor(
     }
 
     @SuppressLint("InflateParams")
-    fun setPassword(context: Context, @StringRes labelId: Int, @StringRes preference: Int, ok: ((String) -> Unit)? = null, cancel: (() -> Unit)? = null, clear: (() -> Unit)? = null) {
+    fun setPassword(context: Context, @StringRes labelId: Int, @StringRes preference: Int, ok: ((String) -> Unit)? = null, cancel: (() -> Unit)? = null, clear: (() -> Unit)? = null, pinInput: Boolean = false) {
         val promptsView = LayoutInflater.from(context).inflate(R.layout.passwordprompt, null)
         val alertDialogBuilder = AlertDialogHelper.Builder(context, R.style.DialogTheme)
         alertDialogBuilder.setView(promptsView)
 
         val userInput = promptsView.findViewById<View>(R.id.password_prompt_pass) as EditText
         val userInput2 = promptsView.findViewById<View>(R.id.password_prompt_pass_confirm) as EditText
-
+        if (pinInput) {
+            userInput.inputType = InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_VARIATION_PASSWORD
+            userInput2.inputType = InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_VARIATION_PASSWORD
+            userInput.setHint(R.string.pin_hint)
+            userInput2.setHint(R.string.pin_hint)
+        }
         val autoFillHintPasswordKind = context.getString(preference)
         userInput.setAutofillHints(AUTOFILL_HINT_NEW_PASSWORD, "aaps_${autoFillHintPasswordKind}")
         userInput.importantForAutofill = View.IMPORTANT_FOR_AUTOFILL_YES
@@ -93,18 +102,22 @@ class PasswordCheck @Inject constructor(
                 val enteredPassword = userInput.text.toString()
                 val enteredPassword2 = userInput2.text.toString()
                 if (enteredPassword != enteredPassword2) {
-                    ToastUtils.errorToast(context, context.getString(R.string.passwords_dont_match))
+                    val msg = if (pinInput) R.string.pin_dont_match else R.string.passwords_dont_match
+                    ToastUtils.errorToast(context, context.getString(msg))
                 } else if (enteredPassword.isNotEmpty()) {
                     sp.putString(preference, cryptoUtil.hashPassword(enteredPassword))
-                    ToastUtils.okToast(context, context.getString(R.string.password_set))
+                    val msg = if (pinInput) R.string.pin_set else R.string.password_set
+                    ToastUtils.okToast(context, context.getString(msg))
                     ok?.invoke(enteredPassword)
                 } else {
                     if (sp.contains(preference)) {
                         sp.remove(preference)
-                        ToastUtils.graphicalToast(context, context.getString(R.string.password_cleared), R.drawable.ic_toast_delete_confirm)
+                        val msg = if (pinInput) R.string.pin_cleared else R.string.password_cleared
+                        ToastUtils.graphicalToast(context, context.getString(msg), R.drawable.ic_toast_delete_confirm)
                         clear?.invoke()
                     } else {
-                        ToastUtils.warnToast(context, context.getString(R.string.password_not_changed))
+                        val msg = if (pinInput) R.string.pin_not_changed else R.string.password_not_changed
+                        ToastUtils.warnToast(context, context.getString(msg))
                         cancel?.invoke()
                     }
                 }
@@ -112,7 +125,8 @@ class PasswordCheck @Inject constructor(
             }
             .setNegativeButton(context.getString(R.string.cancel)
             ) { dialog, _ ->
-                ToastUtils.infoToast(context, context.getString(R.string.password_not_changed))
+                val msg = if (pinInput) R.string.pin_not_changed else R.string.password_not_changed
+                ToastUtils.infoToast(context, context.getString(msg))
                 cancel?.invoke()
                 dialog.cancel()
             }
diff --git a/core/src/main/java/info/nightscout/androidaps/utils/protection/ProtectionCheck.kt b/core/src/main/java/info/nightscout/androidaps/utils/protection/ProtectionCheck.kt
index d06583e17d..7edc13830e 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/protection/ProtectionCheck.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/protection/ProtectionCheck.kt
@@ -22,7 +22,8 @@ class ProtectionCheck @Inject constructor(
         NONE,
         BIOMETRIC,
         MASTER_PASSWORD,
-        CUSTOM_PASSWORD
+        CUSTOM_PASSWORD,
+        CUSTOM_PIN
     }
 
     private val passwordsResourceIDs = listOf(
@@ -30,22 +31,33 @@ class ProtectionCheck @Inject constructor(
         R.string.key_application_password,
         R.string.key_bolus_password)
 
+    private val pinsResourceIDs = listOf(
+        R.string.key_settings_pin,
+        R.string.key_application_pin,
+        R.string.key_bolus_pin)
+
     private val protectionTypeResourceIDs = listOf(
         R.string.key_settings_protection,
         R.string.key_application_protection,
         R.string.key_bolus_protection)
 
-    private val titleResourceIDs = listOf(
+    private val titlePassResourceIDs = listOf(
         R.string.settings_password,
         R.string.application_password,
         R.string.bolus_password)
 
+    private val titlePinResourceIDs = listOf(
+        R.string.settings_pin,
+        R.string.application_pin,
+        R.string.bolus_pin)
+
     fun isLocked(protection: Protection): Boolean {
         return when (ProtectionType.values()[sp.getInt(protectionTypeResourceIDs[protection.ordinal], ProtectionType.NONE.ordinal)]) {
             ProtectionType.NONE            -> false
             ProtectionType.BIOMETRIC       -> true
             ProtectionType.MASTER_PASSWORD -> sp.getString(R.string.key_master_password, "") != ""
             ProtectionType.CUSTOM_PASSWORD -> sp.getString(passwordsResourceIDs[protection.ordinal], "") != ""
+            ProtectionType.CUSTOM_PIN -> sp.getString(pinsResourceIDs[protection.ordinal], "") != ""
         }
     }
 
@@ -55,11 +67,13 @@ class ProtectionCheck @Inject constructor(
             ProtectionType.NONE            ->
                 ok?.run()
             ProtectionType.BIOMETRIC       ->
-                BiometricCheck.biometricPrompt(activity, titleResourceIDs[protection.ordinal], ok, cancel, fail, passwordCheck)
+                BiometricCheck.biometricPrompt(activity, titlePassResourceIDs[protection.ordinal], ok, cancel, fail, passwordCheck)
             ProtectionType.MASTER_PASSWORD ->
                 passwordCheck.queryPassword(activity, R.string.master_password, R.string.key_master_password, { ok?.run() }, { cancel?.run() }, { fail?.run() })
             ProtectionType.CUSTOM_PASSWORD ->
-                passwordCheck.queryPassword(activity, titleResourceIDs[protection.ordinal], passwordsResourceIDs[protection.ordinal], { ok?.run() }, { cancel?.run() }, { fail?.run() })
+                passwordCheck.queryPassword(activity, titlePassResourceIDs[protection.ordinal], passwordsResourceIDs[protection.ordinal], { ok?.run() }, { cancel?.run() }, { fail?.run() })
+            ProtectionType.CUSTOM_PIN ->
+                passwordCheck.queryPassword(activity, titlePinResourceIDs[protection.ordinal], pinsResourceIDs[protection.ordinal], { ok?.run() }, { cancel?.run() }, { fail?.run() }, true)
         }
     }
-}
\ No newline at end of file
+}
diff --git a/core/src/main/res/layout/passwordprompt.xml b/core/src/main/res/layout/passwordprompt.xml
index 90b14b14e4..bfbfbde942 100644
--- a/core/src/main/res/layout/passwordprompt.xml
+++ b/core/src/main/res/layout/passwordprompt.xml
@@ -2,8 +2,10 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
+    xmlns:tools="http://schemas.android.com/tools"
     android:orientation="vertical"
-    android:padding="10dp">
+    android:padding="10dp"
+    tools:context=".utils.protection.PasswordCheck">
 
     <TextView
         android:id="@+id/password_prompt_extra_message"
diff --git a/core/src/main/res/values/protection.xml b/core/src/main/res/values/protection.xml
index 0b39654d2b..807106b726 100644
--- a/core/src/main/res/values/protection.xml
+++ b/core/src/main/res/values/protection.xml
@@ -7,11 +7,15 @@
     <string name="bolus_protection">Bolus protection</string>
     <string name="master_password">Master password</string>
     <string name="settings_password">Settings password</string>
+    <string name="settings_pin">Settings PIN</string>
     <string name="application_password">Application password</string>
+    <string name="application_pin">Application PIN</string>
     <string name="bolus_password">Bolus password</string>
+    <string name="bolus_pin">Bolus PIN</string>
     <string name="unlock_settings">Unlock settings</string>
     <string name="biometric">Biometric</string>
     <string name="custom_password">Custom password</string>
+    <string name="custom_pin">Custom PIN</string>
     <string name="noprotection">No protection</string>
     <string name="protection">Protection</string>
     <string name="master_password_missing">Master password is not set!\n\nPlease set your Master password in Preferences (%1$s &#8594; %2$s)</string>
@@ -19,15 +23,23 @@
     <string name="unsecure_fallback_descriotion_biometric">In order to be effective, biometric protection needs a master password set for fallback.\n\nPlease set a master password!</string>
 
     <string name="password_set">Password set!</string>
+    <string name="pin_set">PIN set!</string>
     <string name="password_not_set">Password not set</string>
+    <string name="pin_not_set">PIN not set</string>
     <string name="password_not_changed">Password not changed</string>
+    <string name="pin_not_changed">PIN not changed</string>
     <string name="password_cleared">Password cleared!</string>
+    <string name="pin_cleared">PIN cleared!</string>
     <string name="password_hint">Enter password here</string>
+    <string name="pin_hint">Enter PIN here</string>
 
     <string name="key_master_password" translatable="false">master_password</string>
     <string name="key_settings_password" translatable="false">settings_password</string>
+    <string name="key_settings_pin" translatable="false">settings_pin</string>
     <string name="key_application_password" translatable="false">application_password</string>
+    <string name="key_application_pin" translatable="false">application_pin</string>
     <string name="key_bolus_password" translatable="false">bolus_password</string>
+    <string name="key_bolus_pin" translatable="false">bolus_pin</string>
     <string name="key_settings_protection" translatable="false">settings_protection</string>
     <string name="key_application_protection" translatable="false">application_protection</string>
     <string name="key_bolus_protection" translatable="false">bolus_protection</string>
diff --git a/core/src/main/res/values/strings.xml b/core/src/main/res/values/strings.xml
index ea72c80e9d..65ad75af76 100644
--- a/core/src/main/res/values/strings.xml
+++ b/core/src/main/res/values/strings.xml
@@ -222,7 +222,9 @@
 
     <!--    Protection-->
     <string name="wrongpassword">Wrong password</string>
+    <string name="wrongpin">Wrong PIN</string>
     <string name="passwords_dont_match">Passwords don\'t match</string>
+    <string name="pin_dont_match">PINs don\'t match</string>
 
     <!--    Profile-->
     <string name="basalprofilenotaligned">Basal values not aligned to hours: %1$s</string>