diff --git a/app/build.gradle b/app/build.gradle
index 804e69c..463b777 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -5,8 +5,6 @@ plugins {
     id 'kotlin-android'
     id 'kotlin-parcelize'
     id 'com.google.devtools.ksp'
-    id 'com.google.gms.google-services'
-    id 'com.google.firebase.crashlytics'
     id 'com.github.triplet.play'
 }
 
@@ -47,10 +45,6 @@ android {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             signingConfig signingConfigs.release
-            firebaseCrashlytics {
-                nativeSymbolUploadEnabled true
-                unstrippedNativeLibsDir true
-            }
         }
     }
 
@@ -104,10 +98,7 @@ dependencies {
     implementation('org.smali:dexlib2:2.5.2') {
         exclude group: 'com.google.guava', module: 'guava'
     }
-    implementation('com.google.guava:guava:32.1.2-android')
-
-    implementation platform('com.google.firebase:firebase-bom:32.4.0')
-    implementation 'com.google.firebase:firebase-crashlytics-ktx'
+    implementation 'com.google.guava:guava:32.1.2-android'
     implementation 'com.google.android.play:app-update-ktx:2.1.0'
 }
 
diff --git a/app/google-services.json b/app/google-services.json
deleted file mode 100644
index 474a84b..0000000
--- a/app/google-services.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  "project_info": {
-    "project_number": "548801210715",
-    "project_id": "sing-b0x",
-    "storage_bucket": "sing-b0x.appspot.com"
-  },
-  "client": [
-    {
-      "client_info": {
-        "mobilesdk_app_id": "1:548801210715:android:2c3bce07700eecb54d527e",
-        "android_client_info": {
-          "package_name": "io.nekohasekai.sfa"
-        }
-      },
-      "oauth_client": [],
-      "api_key": [
-        {
-          "current_key": "AIzaSyDzb5nuF2qyw-AW0opn4Ymi2QGuJ6dZyYo"
-        }
-      ],
-      "services": {
-        "appinvite_service": {
-          "other_platform_oauth_client": []
-        }
-      }
-    }
-  ],
-  "configuration_version": "1"
-}
\ No newline at end of file
diff --git a/app/src/main/java/io/nekohasekai/sfa/constant/SettingsKey.kt b/app/src/main/java/io/nekohasekai/sfa/constant/SettingsKey.kt
index 7d21044..88a0952 100644
--- a/app/src/main/java/io/nekohasekai/sfa/constant/SettingsKey.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/constant/SettingsKey.kt
@@ -4,7 +4,6 @@ object SettingsKey {
 
     const val SELECTED_PROFILE = "selected_profile"
     const val SERVICE_MODE = "service_mode"
-    const val ERROR_REPORTING_ENABLED = "error_reporting_enabled"
     const val CHECK_UPDATE_ENABLED = "check_update_enabled"
     const val DISABLE_MEMORY_LIMIT = "disable_memory_limit"
 
diff --git a/app/src/main/java/io/nekohasekai/sfa/database/Settings.kt b/app/src/main/java/io/nekohasekai/sfa/database/Settings.kt
index fbd9f03..44622f6 100644
--- a/app/src/main/java/io/nekohasekai/sfa/database/Settings.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/database/Settings.kt
@@ -38,11 +38,6 @@ object Settings {
     var serviceMode by dataStore.string(SettingsKey.SERVICE_MODE) { ServiceMode.NORMAL }
     var startedByUser by dataStore.boolean(SettingsKey.STARTED_BY_USER)
 
-    const val ERROR_REPORTING_UNKNOWN = -1
-    const val ERROR_REPORTING_ALLOWED = 0
-    const val ERROR_REPORTING_DISALLOWED = 1
-
-    var errorReportingEnabled by dataStore.int(SettingsKey.ERROR_REPORTING_ENABLED) { ERROR_REPORTING_UNKNOWN }
     var checkUpdateEnabled by dataStore.boolean(SettingsKey.CHECK_UPDATE_ENABLED) { true }
     var disableMemoryLimit by dataStore.boolean(SettingsKey.DISABLE_MEMORY_LIMIT)
 
diff --git a/app/src/main/java/io/nekohasekai/sfa/ui/MainActivity.kt b/app/src/main/java/io/nekohasekai/sfa/ui/MainActivity.kt
index 2d6e87d..6dce6a1 100644
--- a/app/src/main/java/io/nekohasekai/sfa/ui/MainActivity.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/ui/MainActivity.kt
@@ -22,8 +22,6 @@ import com.google.android.play.core.appupdate.AppUpdateOptions
 import com.google.android.play.core.install.model.AppUpdateType
 import com.google.android.play.core.install.model.InstallStatus
 import com.google.android.play.core.install.model.UpdateAvailability
-import com.google.firebase.crashlytics.ktx.crashlytics
-import com.google.firebase.ktx.Firebase
 import io.nekohasekai.libbox.Libbox
 import io.nekohasekai.libbox.ProfileContent
 import io.nekohasekai.sfa.Application
@@ -180,11 +178,7 @@ class MainActivity : AbstractActivity(), ServiceConnection.Callback {
 
     private fun startIntegration() {
         lifecycleScope.launch(Dispatchers.IO) {
-            if (Settings.errorReportingEnabled == Settings.ERROR_REPORTING_UNKNOWN) {
-                withContext(Dispatchers.Main) {
-                    confirmErrorReportingIntegration()
-                }
-            } else if (Settings.checkUpdateEnabled) {
+            if (Settings.checkUpdateEnabled) {
                 checkUpdate()
             }
         }
@@ -232,22 +226,6 @@ class MainActivity : AbstractActivity(), ServiceConnection.Callback {
         }
     }
 
-    private fun confirmErrorReportingIntegration() {
-        val builder = MaterialAlertDialogBuilder(this).setTitle(getString(R.string.error_reporting))
-            .setMessage(R.string.error_reporting_message)
-            .setPositiveButton(getString(R.string.ok)) { _, _ ->
-                lifecycleScope.launch(Dispatchers.IO) {
-                    Settings.errorReportingEnabled = Settings.ERROR_REPORTING_ALLOWED
-                    Firebase.crashlytics.setCrashlyticsCollectionEnabled(true)
-                }
-            }.setNegativeButton(getString(R.string.no_thanks)) { _, _ ->
-                lifecycleScope.launch(Dispatchers.IO) {
-                    Settings.errorReportingEnabled = Settings.ERROR_REPORTING_DISALLOWED
-                }
-            }
-        runCatching { builder.show() }
-    }
-
     @SuppressLint("NewApi")
     fun startService() {
         if (!ServiceNotification.checkPermission()) {
diff --git a/app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt b/app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt
index 8159c20..acd5164 100644
--- a/app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt
@@ -11,8 +11,6 @@ import androidx.activity.result.contract.ActivityResultContracts
 import androidx.core.view.isGone
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
-import com.google.firebase.crashlytics.ktx.crashlytics
-import com.google.firebase.ktx.Firebase
 import io.nekohasekai.libbox.Libbox
 import io.nekohasekai.sfa.Application
 import io.nekohasekai.sfa.R
@@ -66,14 +64,6 @@ class SettingsFragment : Fragment() {
                 Settings.checkUpdateEnabled = newValue
             }
         }
-        binding.errorReportingEnabled.addTextChangedListener {
-            lifecycleScope.launch(Dispatchers.IO) {
-                val newValue = EnabledType.valueOf(it).boolValue
-                Settings.errorReportingEnabled =
-                    if (newValue) Settings.ERROR_REPORTING_ALLOWED else Settings.ERROR_REPORTING_DISALLOWED
-                Firebase.crashlytics.setCrashlyticsCollectionEnabled(newValue)
-            }
-        }
         binding.disableMemoryLimit.addTextChangedListener {
             lifecycleScope.launch(Dispatchers.IO) {
                 val newValue = EnabledType.valueOf(it).boolValue
@@ -115,7 +105,6 @@ class SettingsFragment : Fragment() {
             (activity.getExternalFilesDir(null) ?: activity.filesDir)
                 .walkTopDown().filter { it.isFile }.map { it.length() }.sum()
         )
-        val errorReportingEnabled = Settings.errorReportingEnabled == Settings.ERROR_REPORTING_ALLOWED
         val checkUpdateEnabled = Settings.checkUpdateEnabled
         val removeBackgroundPermissionPage = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             Application.powerManager.isIgnoringBatteryOptimizations(Application.application.packageName)
@@ -124,8 +113,6 @@ class SettingsFragment : Fragment() {
         }
         withContext(Dispatchers.Main) {
             binding.dataSizeText.text = dataSize
-            binding.errorReportingEnabled.text = EnabledType.from(errorReportingEnabled).name
-            binding.errorReportingEnabled.setSimpleItems(R.array.enabled)
             binding.checkUpdateEnabled.text = EnabledType.from(checkUpdateEnabled).name
             binding.checkUpdateEnabled.setSimpleItems(R.array.enabled)
             binding.disableMemoryLimit.text = EnabledType.from(!Settings.disableMemoryLimit).name
diff --git a/app/src/main/res/layout/fragment_settings.xml b/app/src/main/res/layout/fragment_settings.xml
index 359b1ed..571922b 100644
--- a/app/src/main/res/layout/fragment_settings.xml
+++ b/app/src/main/res/layout/fragment_settings.xml
@@ -51,23 +51,6 @@
 
                 </com.google.android.material.textfield.TextInputLayout>
 
-                <com.google.android.material.textfield.TextInputLayout
-                    android:id="@+id/errorReportingEnabled"
-                    style="@style/Widget.Material3.TextInputLayout.FilledBox.ExposedDropdownMenu"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_marginTop="8dp"
-                    android:hint="@string/error_reporting">
-
-                    <AutoCompleteTextView
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:inputType="none"
-                        android:text="@string/disabled"
-                        app:simpleItems="@array/enabled" />
-
-                </com.google.android.material.textfield.TextInputLayout>
-
             </LinearLayout>
         </com.google.android.material.card.MaterialCardView>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f3b1b72..e0878e7 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -83,8 +83,6 @@
     <string name="core">Core</string>
     <string name="core_data_size">Data Size</string>
     <string name="check_update">Check Update</string>
-    <string name="error_reporting">Error Reporting</string>
-    <string name="error_reporting_message">Would you like to allow sing to send error reports to developers via Firebase Crashlytics?</string>
     <string name="title_app_settings">App Settings</string>
     <string name="about_title">About</string>
     <string name="app_description">Android client for sing-box, the universal proxy platform.</string>
diff --git a/build.gradle b/build.gradle
index 4a4020f..416a661 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,8 +2,6 @@
 buildscript {
     dependencies {
         classpath "gradle.plugin.com.betomorrow.gradle:appcenter-plugin:2.0.4"
-        // https://github.com/invertase/react-native-firebase/issues/6983
-        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.9.2'
     }
 }
 
@@ -12,7 +10,6 @@ plugins {
     id 'com.android.library' version '8.1.2' apply false
     id 'org.jetbrains.kotlin.android' version '1.9.0' apply false
     id 'com.google.devtools.ksp' version '1.9.0-1.0.12' apply false
-    id 'com.google.gms.google-services' version '4.4.0' apply false
     id 'com.github.triplet.play' version '3.8.4' apply false
 }