diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 578dc88..987347a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -14,6 +14,11 @@
             <action android:name="android.intent.action.VIEW" />
             <data android:scheme="nostr" />
         </intent>
+        <intent>
+            <action android:name="android.intent.action.VIEW" />
+            <category android:name="android.intent.category.BROWSABLE" />
+            <data android:scheme="nostrsigner" />
+        </intent>
     </queries>
 
     <application
diff --git a/app/src/main/java/com/koalasat/pokey/models/EncryptedStorage.kt b/app/src/main/java/com/koalasat/pokey/models/EncryptedStorage.kt
index ea11bca..dde7f69 100644
--- a/app/src/main/java/com/koalasat/pokey/models/EncryptedStorage.kt
+++ b/app/src/main/java/com/koalasat/pokey/models/EncryptedStorage.kt
@@ -18,6 +18,7 @@ object PrefKeys {
     const val NOTIFY_MENTIONS = "notify_mentions"
     const val NOTIFY_REPOSTS = "notify_reposts"
     const val NOTIFY_FOLLOWS = "notify_follows"
+    const val EXTERNAL_SIGNER = "external_signer"
 }
 object DefaultKeys {
     const val BROADCAST = true
@@ -29,6 +30,7 @@ object DefaultKeys {
     const val NOTIFY_MENTIONS = true
     const val NOTIFY_REPOSTS = true
     const val NOTIFY_FOLLOWS = true
+    const val EXTERNAL_SIGNER = "com.greenart7c3.nostrsigner"
 }
 
 object EncryptedStorage {
@@ -57,6 +59,8 @@ object EncryptedStorage {
     val notifyResposts: LiveData<Boolean> get() = _notifyResposts
     private val _notifyFollows = MutableLiveData<Boolean>().apply { DefaultKeys.NOTIFY_FOLLOWS }
     val notifyFollows: LiveData<Boolean> get() = _notifyFollows
+    private val _externalSigner = MutableLiveData<String>().apply { DefaultKeys.EXTERNAL_SIGNER }
+    val externalSigner: LiveData<String> get() = _externalSigner
 
     fun init(context: Context) {
         val masterKey: MasterKey =
@@ -82,6 +86,12 @@ object EncryptedStorage {
         _notifyMentions.value = sharedPreferences.getBoolean(PrefKeys.NOTIFY_MENTIONS, DefaultKeys.NOTIFY_MENTIONS)
         _notifyResposts.value = sharedPreferences.getBoolean(PrefKeys.NOTIFY_REPOSTS, DefaultKeys.NOTIFY_REPOSTS)
         _notifyFollows.value = sharedPreferences.getBoolean(PrefKeys.NOTIFY_FOLLOWS, DefaultKeys.NOTIFY_FOLLOWS)
+        _externalSigner.value = sharedPreferences.getString(PrefKeys.EXTERNAL_SIGNER, DefaultKeys.EXTERNAL_SIGNER) ?: DefaultKeys.EXTERNAL_SIGNER
+    }
+
+    fun updateExternalSigner(newValue: String) {
+        sharedPreferences.edit().putString(PrefKeys.EXTERNAL_SIGNER, newValue).apply()
+        _externalSigner.value = newValue
     }
 
     fun updatePubKey(newValue: String) {
diff --git a/app/src/main/java/com/koalasat/pokey/models/ExternalSigner.kt b/app/src/main/java/com/koalasat/pokey/models/ExternalSigner.kt
index b741801..6873782 100644
--- a/app/src/main/java/com/koalasat/pokey/models/ExternalSigner.kt
+++ b/app/src/main/java/com/koalasat/pokey/models/ExternalSigner.kt
@@ -45,6 +45,9 @@ object ExternalSigner {
             val pubkey = split.first()
             if (split.first().isNotEmpty()) {
                 EncryptedStorage.updatePubKey(pubkey)
+                if (split.size > 1) {
+                    EncryptedStorage.updateExternalSigner(split[1])
+                }
                 startLauncher()
             }
         }
@@ -98,7 +101,10 @@ object ExternalSigner {
     private fun startLauncher() {
         var pubKey = EncryptedStorage.pubKey.value
         if (pubKey == null) pubKey = ""
-        externalSignerLauncher = ExternalSignerLauncher(pubKey, signerPackageName = "")
+        var externalSignerPackage = EncryptedStorage.externalSigner.value
+        if (externalSignerPackage == null) externalSignerPackage = ""
+        if (pubKey.isEmpty()) externalSignerPackage = ""
+        externalSignerLauncher = ExternalSignerLauncher(pubKey, signerPackageName = externalSignerPackage)
         externalSignerLauncher.registerLauncher(
             launcher = {
                 try {