diff --git a/apps/ios/Sources/Settings/SettingsTab.swift b/apps/ios/Sources/Settings/SettingsTab.swift
index 662a22cb049..50b4984520b 100644
--- a/apps/ios/Sources/Settings/SettingsTab.swift
+++ b/apps/ios/Sources/Settings/SettingsTab.swift
@@ -304,7 +304,7 @@ struct SettingsTab: View {
                 }
             }
             .onAppear {
-                self.localIPAddress = Self.primaryIPv4Address()
+                self.localIPAddress = NetworkInterfaces.primaryIPv4Address()
                 self.lastLocationModeRaw = self.locationEnabledModeRaw
                 self.syncManualPortText()
                 let trimmedInstanceId = self.instanceId.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -852,44 +852,6 @@ struct SettingsTab: View {
         return nil
     }
 
-    private static func primaryIPv4Address() -> String? {
-        var addrList: UnsafeMutablePointer<ifaddrs>?
-        guard getifaddrs(&addrList) == 0, let first = addrList else { return nil }
-        defer { freeifaddrs(addrList) }
-
-        var fallback: String?
-        var en0: String?
-
-        for ptr in sequence(first: first, next: { $0.pointee.ifa_next }) {
-            let flags = Int32(ptr.pointee.ifa_flags)
-            let isUp = (flags & IFF_UP) != 0
-            let isLoopback = (flags & IFF_LOOPBACK) != 0
-            let name = String(cString: ptr.pointee.ifa_name)
-            let family = ptr.pointee.ifa_addr.pointee.sa_family
-            if !isUp || isLoopback || family != UInt8(AF_INET) { continue }
-
-            var addr = ptr.pointee.ifa_addr.pointee
-            var buffer = [CChar](repeating: 0, count: Int(NI_MAXHOST))
-            let result = getnameinfo(
-                &addr,
-                socklen_t(ptr.pointee.ifa_addr.pointee.sa_len),
-                &buffer,
-                socklen_t(buffer.count),
-                nil,
-                0,
-                NI_NUMERICHOST)
-            guard result == 0 else { continue }
-            let len = buffer.prefix { $0 != 0 }
-            let bytes = len.map { UInt8(bitPattern: $0) }
-            guard let ip = String(bytes: bytes, encoding: .utf8) else { continue }
-
-            if name == "en0" { en0 = ip; break }
-            if fallback == nil { fallback = ip }
-        }
-
-        return en0 ?? fallback
-    }
-
     private static func hasTailnetIPv4() -> Bool {
         var addrList: UnsafeMutablePointer<ifaddrs>?
         guard getifaddrs(&addrList) == 0, let first = addrList else { return false }
diff --git a/apps/macos/Sources/OpenClaw/SystemPresenceInfo.swift b/apps/macos/Sources/OpenClaw/SystemPresenceInfo.swift
index a80f470773c..843ed371fb5 100644
--- a/apps/macos/Sources/OpenClaw/SystemPresenceInfo.swift
+++ b/apps/macos/Sources/OpenClaw/SystemPresenceInfo.swift
@@ -1,6 +1,6 @@
 import CoreGraphics
-import Darwin
 import Foundation
+import OpenClawKit
 
 enum SystemPresenceInfo {
     static func lastInputSeconds() -> Int? {
@@ -11,41 +11,6 @@ enum SystemPresenceInfo {
     }
 
     static func primaryIPv4Address() -> String? {
-        var addrList: UnsafeMutablePointer<ifaddrs>?
-        guard getifaddrs(&addrList) == 0, let first = addrList else { return nil }
-        defer { freeifaddrs(addrList) }
-
-        var fallback: String?
-        var en0: String?
-
-        for ptr in sequence(first: first, next: { $0.pointee.ifa_next }) {
-            let flags = Int32(ptr.pointee.ifa_flags)
-            let isUp = (flags & IFF_UP) != 0
-            let isLoopback = (flags & IFF_LOOPBACK) != 0
-            let name = String(cString: ptr.pointee.ifa_name)
-            let family = ptr.pointee.ifa_addr.pointee.sa_family
-            if !isUp || isLoopback || family != UInt8(AF_INET) { continue }
-
-            var addr = ptr.pointee.ifa_addr.pointee
-            var buffer = [CChar](repeating: 0, count: Int(NI_MAXHOST))
-            let result = getnameinfo(
-                &addr,
-                socklen_t(ptr.pointee.ifa_addr.pointee.sa_len),
-                &buffer,
-                socklen_t(buffer.count),
-                nil,
-                0,
-                NI_NUMERICHOST)
-            guard result == 0 else { continue }
-            let len = buffer.prefix { $0 != 0 }
-            let bytes = len.map { UInt8(bitPattern: $0) }
-            guard let ip = String(bytes: bytes, encoding: .utf8) else { continue }
-
-            if name == "en0" { en0 = ip; break }
-            if fallback == nil { fallback = ip }
-        }
-
-        return en0 ?? fallback
+        NetworkInterfaces.primaryIPv4Address()
     }
 }
-
diff --git a/apps/shared/OpenClawKit/Sources/OpenClawKit/NetworkInterfaces.swift b/apps/shared/OpenClawKit/Sources/OpenClawKit/NetworkInterfaces.swift
new file mode 100644
index 00000000000..3679ef54234
--- /dev/null
+++ b/apps/shared/OpenClawKit/Sources/OpenClawKit/NetworkInterfaces.swift
@@ -0,0 +1,43 @@
+import Darwin
+import Foundation
+
+public enum NetworkInterfaces {
+    public static func primaryIPv4Address() -> String? {
+        var addrList: UnsafeMutablePointer<ifaddrs>?
+        guard getifaddrs(&addrList) == 0, let first = addrList else { return nil }
+        defer { freeifaddrs(addrList) }
+
+        var fallback: String?
+        var en0: String?
+
+        for ptr in sequence(first: first, next: { $0.pointee.ifa_next }) {
+            let flags = Int32(ptr.pointee.ifa_flags)
+            let isUp = (flags & IFF_UP) != 0
+            let isLoopback = (flags & IFF_LOOPBACK) != 0
+            let name = String(cString: ptr.pointee.ifa_name)
+            let family = ptr.pointee.ifa_addr.pointee.sa_family
+            if !isUp || isLoopback || family != UInt8(AF_INET) { continue }
+
+            var addr = ptr.pointee.ifa_addr.pointee
+            var buffer = [CChar](repeating: 0, count: Int(NI_MAXHOST))
+            let result = getnameinfo(
+                &addr,
+                socklen_t(ptr.pointee.ifa_addr.pointee.sa_len),
+                &buffer,
+                socklen_t(buffer.count),
+                nil,
+                0,
+                NI_NUMERICHOST)
+            guard result == 0 else { continue }
+            let len = buffer.prefix { $0 != 0 }
+            let bytes = len.map { UInt8(bitPattern: $0) }
+            guard let ip = String(bytes: bytes, encoding: .utf8) else { continue }
+
+            if name == "en0" { en0 = ip; break }
+            if fallback == nil { fallback = ip }
+        }
+
+        return en0 ?? fallback
+    }
+}
+