diff --git a/firebase-app/src/commonTest/kotlin/dev/gitlive/firebase/firebase.kt b/firebase-app/src/commonTest/kotlin/dev/gitlive/firebase/firebase.kt
index b13b1fa24..9809c0090 100644
--- a/firebase-app/src/commonTest/kotlin/dev/gitlive/firebase/firebase.kt
+++ b/firebase-app/src/commonTest/kotlin/dev/gitlive/firebase/firebase.kt
@@ -1,6 +1,7 @@
 package dev.gitlive.firebase
 
 import kotlin.test.Test
+import kotlin.test.assertEquals
 
 expect val context: Any
 expect fun runTest(test: suspend () -> Unit)
@@ -21,6 +22,12 @@ class FirebaseAppTest {
                 gcmSenderId = "846484016111"
             )
         )
+
+        assertEquals(1, Firebase.apps(context).size)
+
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
     }
 
 }
\ No newline at end of file
diff --git a/firebase-auth/src/commonTest/kotlin/dev/gitlive/firebase/auth/auth.kt b/firebase-auth/src/commonTest/kotlin/dev/gitlive/firebase/auth/auth.kt
index 9dd68b31a..3b6f5df77 100644
--- a/firebase-auth/src/commonTest/kotlin/dev/gitlive/firebase/auth/auth.kt
+++ b/firebase-auth/src/commonTest/kotlin/dev/gitlive/firebase/auth/auth.kt
@@ -37,6 +37,13 @@ class FirebaseAuthTest {
             }
     }
 
+    @AfterTest
+    fun deinitializeFirebase() {
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
+    }
+
     @Test
     fun testSignInWithUsernameAndPassword() = runTest {
         val uid = getTestUid("test@test.com", "test123")
diff --git a/firebase-config/src/commonTest/kotlin/dev/gitlive/firebase/remoteconfig/FirebaseRemoteConfig.kt b/firebase-config/src/commonTest/kotlin/dev/gitlive/firebase/remoteconfig/FirebaseRemoteConfig.kt
index 2e54c1d13..9d62b0253 100644
--- a/firebase-config/src/commonTest/kotlin/dev/gitlive/firebase/remoteconfig/FirebaseRemoteConfig.kt
+++ b/firebase-config/src/commonTest/kotlin/dev/gitlive/firebase/remoteconfig/FirebaseRemoteConfig.kt
@@ -50,6 +50,9 @@ class FirebaseRemoteConfigTest {
     @AfterTest
     fun tearDown() = runTest {
         Firebase.remoteConfig.reset()
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
     }
 
     @Test
diff --git a/firebase-crashlytics/src/commonTest/kotlin/dev/gitlive/firebase/crashlytics/crashlytics.kt b/firebase-crashlytics/src/commonTest/kotlin/dev/gitlive/firebase/crashlytics/crashlytics.kt
index 78188aebd..a50585bd0 100644
--- a/firebase-crashlytics/src/commonTest/kotlin/dev/gitlive/firebase/crashlytics/crashlytics.kt
+++ b/firebase-crashlytics/src/commonTest/kotlin/dev/gitlive/firebase/crashlytics/crashlytics.kt
@@ -10,6 +10,7 @@ import dev.gitlive.firebase.apps
 import dev.gitlive.firebase.initialize
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.test.TestResult
+import kotlin.test.AfterTest
 import kotlin.test.BeforeTest
 import kotlin.test.Test
 import kotlin.test.assertFalse
@@ -41,6 +42,13 @@ class FirebaseCrashlyticsTest {
             }
     }
 
+    @AfterTest
+    fun deinitializeFirebase() {
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
+    }
+
     @Test
     fun testRecordException() = runTest {
 
diff --git a/firebase-database/src/commonTest/kotlin/dev/gitlive/firebase/database/database.kt b/firebase-database/src/commonTest/kotlin/dev/gitlive/firebase/database/database.kt
index 2a339c495..14f921962 100644
--- a/firebase-database/src/commonTest/kotlin/dev/gitlive/firebase/database/database.kt
+++ b/firebase-database/src/commonTest/kotlin/dev/gitlive/firebase/database/database.kt
@@ -40,6 +40,13 @@ class FirebaseDatabaseTest {
             }
     }
 
+    @AfterTest
+    fun deinitializeFirebase() {
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
+    }
+
     @Test
     fun testSetValue() = runTest {
         val testValue = "test"
diff --git a/firebase-firestore/src/commonTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt b/firebase-firestore/src/commonTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt
index 3156416af..e7b0fd106 100644
--- a/firebase-firestore/src/commonTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt
+++ b/firebase-firestore/src/commonTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt
@@ -19,6 +19,7 @@ import kotlinx.coroutines.withContext
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.builtins.nullable
 import kotlin.random.Random
+import kotlin.test.AfterTest
 import kotlin.test.BeforeTest
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -69,6 +70,13 @@ class FirebaseFirestoreTest {
             }
     }
 
+    @AfterTest
+    fun deinitializeFirebase() {
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
+    }
+
     @Test
     fun testStringOrderBy() = runTest {
         setupFirestoreData()
diff --git a/firebase-perf/src/commonTest/kotlin/dev/gitlive/firebase/perf/performance.kt b/firebase-perf/src/commonTest/kotlin/dev/gitlive/firebase/perf/performance.kt
index 053aefb1d..f2ef6ae2a 100644
--- a/firebase-perf/src/commonTest/kotlin/dev/gitlive/firebase/perf/performance.kt
+++ b/firebase-perf/src/commonTest/kotlin/dev/gitlive/firebase/perf/performance.kt
@@ -39,6 +39,13 @@ class FirebasePerformanceTest {
             }
     }
 
+    @AfterTest
+    fun deinitializeFirebase() {
+        Firebase.apps(context).forEach {
+            it.delete()
+        }
+    }
+
     @Test
     fun testNewTrace() = runTest {
 
diff --git a/firebase-perf/src/jsTest/kotlin/dev/gitlive/firebase/perf/performance.kt b/firebase-perf/src/jsTest/kotlin/dev/gitlive/firebase/perf/performance.kt
index 1712a7beb..8a71f4902 100644
--- a/firebase-perf/src/jsTest/kotlin/dev/gitlive/firebase/perf/performance.kt
+++ b/firebase-perf/src/jsTest/kotlin/dev/gitlive/firebase/perf/performance.kt
@@ -16,7 +16,9 @@ actual val emulatorHost: String = "localhost"
 
 actual val context: Any = Unit
 
-actual fun runTest(test: suspend CoroutineScope.() -> Unit) = kotlinx.coroutines.test.runTest(timeout = 5.minutes) { test() }
+actual fun runTest(test: suspend CoroutineScope.() -> Unit) = kotlinx.coroutines.test.runTest(timeout = 5.minutes) {
+    test()
+}
 
 @Target(AnnotationTarget.CLASS, AnnotationTarget.FUNCTION)
 actual annotation class IgnoreForAndroidUnitTest