diff --git a/build.gradle.kts b/build.gradle.kts
index a43c8ec..94f7ad2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -51,6 +51,9 @@ kotlin {
             }
         }
     }
+    iosX64()
+    iosArm64()
+    iosSimulatorArm64()
 
     @OptIn(org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi::class)
     applyHierarchyTemplate {
@@ -66,6 +69,11 @@ kotlin {
                 withLinuxX64()
                 withLinuxArm64()
             }
+            group("ios") {
+                withIosX64()
+                withIosArm64()
+                withIosSimulatorArm64()
+            }
         }
     }
 
@@ -181,6 +189,14 @@ kotlin {
                 implementation("androidx.test:runner:1.6.2")
             }
         }
+
+        // ios
+        val iosMain by getting {
+            dependsOn(commonMain)
+        }
+        val iosTest by getting {
+            dependsOn(commonTest)
+        }
     }
 }
 
diff --git a/src/iosMain/kotlin/ca/gosyer/appdirs/AppDirs.kt b/src/iosMain/kotlin/ca/gosyer/appdirs/AppDirs.kt
new file mode 100644
index 0000000..073dfb0
--- /dev/null
+++ b/src/iosMain/kotlin/ca/gosyer/appdirs/AppDirs.kt
@@ -0,0 +1,32 @@
+package ca.gosyer.appdirs
+
+actual fun AppDirs(config: AppDirsConfig.() -> Unit): AppDirs {
+    val config = AppDirsConfig().apply(config)
+    return TODO()
+}
+
+@Deprecated("Use AppDirs DSL instead.")
+actual fun AppDirs(
+    appName: String?,
+    appAuthor: String?,
+    vararg extra: String,
+): AppDirs {
+    return AppDirs {
+        this.appName = appName
+        this.appAuthor = appAuthor
+        this.extras = extra
+    }
+}
+
+@Deprecated("Use AppDirs DSL instead.")
+fun AppDirs(
+    appName: String?,
+    appAuthor: String? = null,
+    extra: List<String> = emptyList(),
+): AppDirs {
+    return AppDirs {
+        this.appName = appName
+        this.appAuthor = appAuthor
+        this.extras = extra.toTypedArray()
+    }
+}
\ No newline at end of file
diff --git a/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosAppDirs.kt b/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosAppDirs.kt
new file mode 100644
index 0000000..901c592
--- /dev/null
+++ b/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosAppDirs.kt
@@ -0,0 +1,39 @@
+package ca.gosyer.appdirs.impl
+
+import ca.gosyer.appdirs.AppDirs
+import ca.gosyer.appdirs.AppDirsConfig
+import ca.gosyer.appdirs.impl.pathSeparator
+
+class IosAppDirs(
+    appDirsConfig: AppDirsConfig,
+): AppDirs {
+    private val extras = appDirsConfig.extras.joinToString(pathSeparator())
+
+    override fun getUserDataDir(roaming: Boolean): String {
+        return TODO()
+    }
+
+    override fun getUserCacheDir(): String {
+        return TODO()
+    }
+
+    override fun getUserConfigDir(roaming: Boolean): String {
+        return TODO()
+    }
+
+    override fun getUserLogDir(): String {
+        return TODO()
+    }
+
+    override fun getSiteDataDir(multiPath: Boolean): String {
+        return TODO()
+    }
+
+    override fun getSiteConfigDir(multiPath: Boolean): String {
+        return TODO()
+    }
+
+    override fun getSharedDir(): String {
+        return TODO()
+    }
+}
\ No newline at end of file
diff --git a/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosUtil.kt b/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosUtil.kt
new file mode 100644
index 0000000..5be4538
--- /dev/null
+++ b/src/iosMain/kotlin/ca/gosyer/appdirs/impl/IosUtil.kt
@@ -0,0 +1,18 @@
+package ca.gosyer.appdirs.impl
+
+import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.memScoped
+import kotlinx.cinterop.pointed
+import kotlinx.cinterop.toKString
+import platform.posix.getenv
+import platform.posix.getpwuid
+import platform.posix.getuid
+
+@OptIn(ExperimentalForeignApi::class)
+internal actual fun home(): String {
+    throw NotImplementedError("home() not implemented on iOS")
+}
+
+internal actual fun fileSeparator() : String = "/"
+
+internal actual fun pathSeparator() : String = ":"
\ No newline at end of file