diff --git a/app/_layout.tsx b/app/_layout.tsx
index 339480a..f521e6e 100644
--- a/app/_layout.tsx
+++ b/app/_layout.tsx
@@ -10,8 +10,9 @@ import { LoadingSpinner } from '@/components/ui/LoadingSpinner';
 import { ToastProvider } from '@/components/ui/Toast';
 import { AuthProvider, useAuth } from '@/contexts/AuthContext';
 import { BeneficiaryProvider } from '@/contexts/BeneficiaryContext';
-import { BLEProvider } from '@/contexts/BLEContext';
+import { BLEProvider, useBLE } from '@/contexts/BLEContext';
 import { useColorScheme } from '@/hooks/use-color-scheme';
+import { setOnLogoutBLECleanupCallback } from '@/services/api';
 
 // Stripe publishable key (test mode) - must match backend STRIPE_PUBLISHABLE_KEY
 const STRIPE_PUBLISHABLE_KEY = 'pk_test_51P3kdqP0gvUw6M9C7ixPQHqbPcvga4G5kAYx1h6QXQAt1psbrC2rrmOojW0fTeQzaxD1Q9RKS3zZ23MCvjjZpWLi00eCFWRHMk';
@@ -25,12 +26,18 @@ let splashHidden = false;
 function RootLayoutNav() {
   const colorScheme = useColorScheme();
   const { isAuthenticated, isInitializing } = useAuth();
+  const { cleanupBLE } = useBLE();
   const segments = useSegments();
   const navigationState = useRootNavigationState();
 
   // Track if initial redirect was done
   const hasInitialRedirect = useRef(false);
 
+  // Set up BLE cleanup callback for logout
+  useEffect(() => {
+    setOnLogoutBLECleanupCallback(cleanupBLE);
+  }, [cleanupBLE]);
+
   useEffect(() => {
     // Wait for navigation to be ready
     if (!navigationState?.key) {
diff --git a/contexts/BLEContext.tsx b/contexts/BLEContext.tsx
index 3b37901..0d6aeae 100644
--- a/contexts/BLEContext.tsx
+++ b/contexts/BLEContext.tsx
@@ -20,6 +20,7 @@ interface BLEContextType {
   setWiFi: (deviceId: string, ssid: string, password: string) => Promise<boolean>;
   getCurrentWiFi: (deviceId: string) => Promise<WiFiStatus | null>;
   rebootDevice: (deviceId: string) => Promise<void>;
+  cleanupBLE: () => Promise<void>;
   clearError: () => void;
 }
 
@@ -145,6 +146,30 @@ export function BLEProvider({ children }: { children: ReactNode }) {
     setError(null);
   }, []);
 
+  const cleanupBLE = useCallback(async () => {
+    try {
+      console.log('[BLEContext] Cleanup called - cleaning up all BLE connections');
+
+      // Stop any ongoing scan
+      if (isScanning) {
+        stopScan();
+      }
+
+      // Cleanup via bleManager (disconnects all devices)
+      await bleManager.cleanup();
+
+      // Clear context state
+      setFoundDevices([]);
+      setConnectedDevices(new Set());
+      setError(null);
+
+      console.log('[BLEContext] Cleanup complete');
+    } catch (err: any) {
+      console.error('[BLEContext] Cleanup error:', err);
+      // Don't throw - we want to allow logout to proceed even if BLE cleanup fails
+    }
+  }, [isScanning, stopScan]);
+
   const value: BLEContextType = {
     foundDevices,
     isScanning,
@@ -159,6 +184,7 @@ export function BLEProvider({ children }: { children: ReactNode }) {
     setWiFi,
     getCurrentWiFi,
     rebootDevice,
+    cleanupBLE,
     clearError,
   };
 
diff --git a/services/__tests__/api.logout.test.ts b/services/__tests__/api.logout.test.ts
new file mode 100644
index 0000000..cb9f761
--- /dev/null
+++ b/services/__tests__/api.logout.test.ts
@@ -0,0 +1,112 @@
+/**
+ * API Logout Tests
+ * Tests for logout functionality including BLE cleanup
+ */
+
+import { api, setOnLogoutBLECleanupCallback } from '../api';
+import * as SecureStore from 'expo-secure-store';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+
+// Mock dependencies
+jest.mock('expo-secure-store');
+jest.mock('@react-native-async-storage/async-storage');
+
+describe('API logout with BLE cleanup', () => {
+  let bleCleanupCallback: jest.Mock;
+
+  beforeEach(() => {
+    // Reset mocks
+    jest.clearAllMocks();
+
+    // Create mock BLE cleanup callback
+    bleCleanupCallback = jest.fn().mockResolvedValue(undefined);
+  });
+
+  describe('logout without BLE cleanup callback', () => {
+    it('should clear all auth tokens and data', async () => {
+      await api.logout();
+
+      // Verify SecureStore items are deleted
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('accessToken');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('userId');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('userEmail');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('onboardingCompleted');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('legacyAccessToken');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('privileges');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('maxRole');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('userAvatar');
+
+      // Verify AsyncStorage items are removed
+      expect(AsyncStorage.removeItem).toHaveBeenCalledWith('wellnuo_local_beneficiaries');
+    });
+
+    it('should complete logout even if no BLE callback is set', async () => {
+      // Should not throw
+      await expect(api.logout()).resolves.not.toThrow();
+    });
+  });
+
+  describe('logout with BLE cleanup callback', () => {
+    beforeEach(() => {
+      // Set the BLE cleanup callback
+      setOnLogoutBLECleanupCallback(bleCleanupCallback);
+    });
+
+    it('should call BLE cleanup callback before clearing data', async () => {
+      await api.logout();
+
+      // Verify BLE cleanup was called
+      expect(bleCleanupCallback).toHaveBeenCalledTimes(1);
+
+      // Verify auth data was still cleared
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('accessToken');
+    });
+
+    it('should continue logout even if BLE cleanup fails', async () => {
+      // Make BLE cleanup fail
+      bleCleanupCallback.mockRejectedValue(new Error('BLE cleanup failed'));
+
+      // Logout should still complete
+      await expect(api.logout()).resolves.not.toThrow();
+
+      // Verify BLE cleanup was attempted
+      expect(bleCleanupCallback).toHaveBeenCalled();
+
+      // Verify auth data was still cleared despite BLE failure
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('accessToken');
+      expect(SecureStore.deleteItemAsync).toHaveBeenCalledWith('userId');
+    });
+
+    it('should log error but not throw if BLE cleanup fails', async () => {
+      const consoleErrorSpy = jest.spyOn(console, 'error').mockImplementation();
+      bleCleanupCallback.mockRejectedValue(new Error('BLE error'));
+
+      await api.logout();
+
+      expect(consoleErrorSpy).toHaveBeenCalledWith(
+        '[API] BLE cleanup failed during logout:',
+        expect.any(Error)
+      );
+
+      consoleErrorSpy.mockRestore();
+    });
+  });
+
+  describe('BLE cleanup callback registration', () => {
+    it('should allow setting BLE cleanup callback', () => {
+      const callback = jest.fn();
+      expect(() => setOnLogoutBLECleanupCallback(callback)).not.toThrow();
+    });
+
+    it('should allow replacing BLE cleanup callback', () => {
+      const callback1 = jest.fn().mockResolvedValue(undefined);
+      const callback2 = jest.fn().mockResolvedValue(undefined);
+
+      setOnLogoutBLECleanupCallback(callback1);
+      setOnLogoutBLECleanupCallback(callback2);
+
+      // Only callback2 should be called
+      expect(callback1).not.toHaveBeenCalled();
+    });
+  });
+});
diff --git a/services/api.ts b/services/api.ts
index 71e82bb..b3a8c8e 100644
--- a/services/api.ts
+++ b/services/api.ts
@@ -11,6 +11,13 @@ export function setOnUnauthorizedCallback(callback: () => void) {
   onUnauthorizedCallback = callback;
 }
 
+// Callback for BLE cleanup on logout
+let onLogoutBLECleanupCallback: (() => Promise<void>) | null = null;
+
+export function setOnLogoutBLECleanupCallback(callback: () => Promise<void>) {
+  onLogoutBLECleanupCallback = callback;
+}
+
 const API_BASE_URL = 'https://eluxnetworks.net/function/well-api/api';
 const CLIENT_ID = 'MA_001';
 
@@ -194,6 +201,16 @@ class ApiService {
   }
 
   async logout(): Promise<void> {
+    // Call BLE cleanup callback if set
+    if (onLogoutBLECleanupCallback) {
+      try {
+        await onLogoutBLECleanupCallback();
+      } catch (error) {
+        console.error('[API] BLE cleanup failed during logout:', error);
+        // Continue with logout even if BLE cleanup fails
+      }
+    }
+
     // Clear WellNuo API auth data
     await SecureStore.deleteItemAsync('accessToken');
     await SecureStore.deleteItemAsync('userId');
diff --git a/services/ble/BLEManager.ts b/services/ble/BLEManager.ts
index a58af45..23dca66 100644
--- a/services/ble/BLEManager.ts
+++ b/services/ble/BLEManager.ts
@@ -526,4 +526,33 @@ export class RealBLEManager implements IBLEManager {
     // Remove from connected devices
     this.connectedDevices.delete(deviceId);
   }
+
+  /**
+   * Cleanup all BLE connections and state
+   * Should be called on app logout to properly release resources
+   */
+  async cleanup(): Promise<void> {
+    console.log('[BLE] Cleanup: disconnecting all devices');
+
+    // Stop any ongoing scan
+    if (this.scanning) {
+      this.stopScan();
+    }
+
+    // Disconnect all connected devices
+    const deviceIds = Array.from(this.connectedDevices.keys());
+    for (const deviceId of deviceIds) {
+      try {
+        await this.disconnectDevice(deviceId);
+      } catch (error) {
+        console.warn('[BLE] Cleanup: error disconnecting device', deviceId, error);
+        // Continue cleanup even if one device fails
+      }
+    }
+
+    // Clear the map
+    this.connectedDevices.clear();
+
+    console.log('[BLE] Cleanup: complete');
+  }
 }
diff --git a/services/ble/MockBLEManager.ts b/services/ble/MockBLEManager.ts
index 3fd29e1..c65db2b 100644
--- a/services/ble/MockBLEManager.ts
+++ b/services/ble/MockBLEManager.ts
@@ -109,4 +109,21 @@ export class MockBLEManager implements IBLEManager {
     await delay(500);
     this.connectedDevices.delete(deviceId);
   }
+
+  /**
+   * Cleanup all BLE connections and state
+   * Should be called on app logout to properly release resources
+   */
+  async cleanup(): Promise<void> {
+    console.log('[MockBLE] Cleanup: disconnecting all devices');
+
+    // Disconnect all connected devices
+    const deviceIds = Array.from(this.connectedDevices);
+    for (const deviceId of deviceIds) {
+      await this.disconnectDevice(deviceId);
+    }
+
+    this.connectedDevices.clear();
+    console.log('[MockBLE] Cleanup: complete');
+  }
 }
diff --git a/services/ble/__tests__/BLEManager.cleanup.test.ts b/services/ble/__tests__/BLEManager.cleanup.test.ts
new file mode 100644
index 0000000..d0cdfbd
--- /dev/null
+++ b/services/ble/__tests__/BLEManager.cleanup.test.ts
@@ -0,0 +1,127 @@
+/**
+ * BLE Manager Cleanup Tests
+ * Tests for BLE cleanup functionality on logout
+ */
+
+import { RealBLEManager } from '../BLEManager';
+import { MockBLEManager } from '../MockBLEManager';
+
+describe('BLEManager cleanup', () => {
+  describe('RealBLEManager', () => {
+    let manager: RealBLEManager;
+
+    beforeEach(() => {
+      manager = new RealBLEManager();
+    });
+
+    it('should have cleanup method', () => {
+      expect(manager.cleanup).toBeDefined();
+      expect(typeof manager.cleanup).toBe('function');
+    });
+
+    it('should not throw when cleaning up with no connections', async () => {
+      await expect(manager.cleanup()).resolves.not.toThrow();
+    });
+
+    it('should stop scanning when cleanup is called during scan', async () => {
+      // Mock the scanning state
+      (manager as any).scanning = true;
+      const stopScanSpy = jest.spyOn(manager, 'stopScan');
+
+      await manager.cleanup();
+
+      expect(stopScanSpy).toHaveBeenCalled();
+    });
+
+    it('should clear connected devices map after cleanup', async () => {
+      // Simulate connected devices
+      const mockDevice = { id: 'device-1' } as any;
+      (manager as any).connectedDevices.set('device-1', mockDevice);
+
+      await manager.cleanup();
+
+      expect((manager as any).connectedDevices.size).toBe(0);
+    });
+
+    it('should attempt to disconnect all connected devices', async () => {
+      // Mock connected devices
+      const device1 = { id: 'device-1', cancelConnection: jest.fn().mockResolvedValue(undefined) } as any;
+      const device2 = { id: 'device-2', cancelConnection: jest.fn().mockResolvedValue(undefined) } as any;
+
+      (manager as any).connectedDevices.set('device-1', device1);
+      (manager as any).connectedDevices.set('device-2', device2);
+
+      await manager.cleanup();
+
+      expect(device1.cancelConnection).toHaveBeenCalled();
+      expect(device2.cancelConnection).toHaveBeenCalled();
+      expect((manager as any).connectedDevices.size).toBe(0);
+    });
+
+    it('should continue cleanup even if one device disconnection fails', async () => {
+      const device1 = {
+        id: 'device-1',
+        cancelConnection: jest.fn().mockRejectedValue(new Error('Connection lost'))
+      } as any;
+      const device2 = {
+        id: 'device-2',
+        cancelConnection: jest.fn().mockResolvedValue(undefined)
+      } as any;
+
+      (manager as any).connectedDevices.set('device-1', device1);
+      (manager as any).connectedDevices.set('device-2', device2);
+
+      // Should not throw even if one device fails
+      await expect(manager.cleanup()).resolves.not.toThrow();
+
+      // Both should have been attempted
+      expect(device1.cancelConnection).toHaveBeenCalled();
+      expect(device2.cancelConnection).toHaveBeenCalled();
+
+      // Map should still be cleared
+      expect((manager as any).connectedDevices.size).toBe(0);
+    });
+  });
+
+  describe('MockBLEManager', () => {
+    let manager: MockBLEManager;
+
+    beforeEach(() => {
+      manager = new MockBLEManager();
+    });
+
+    it('should have cleanup method', () => {
+      expect(manager.cleanup).toBeDefined();
+      expect(typeof manager.cleanup).toBe('function');
+    });
+
+    it('should not throw when cleaning up with no connections', async () => {
+      await expect(manager.cleanup()).resolves.not.toThrow();
+    });
+
+    it('should clear connected devices set after cleanup', async () => {
+      // Simulate connected devices
+      await manager.connectDevice('mock-743');
+      await manager.connectDevice('mock-769');
+
+      expect((manager as any).connectedDevices.size).toBe(2);
+
+      await manager.cleanup();
+
+      expect((manager as any).connectedDevices.size).toBe(0);
+    });
+
+    it('should call disconnectDevice for each connected device', async () => {
+      await manager.connectDevice('mock-743');
+      await manager.connectDevice('mock-769');
+
+      const disconnectSpy = jest.spyOn(manager, 'disconnectDevice');
+
+      await manager.cleanup();
+
+      expect(disconnectSpy).toHaveBeenCalledTimes(2);
+      expect(disconnectSpy).toHaveBeenCalledWith('mock-743');
+      expect(disconnectSpy).toHaveBeenCalledWith('mock-769');
+    });
+  });
+});
diff --git a/services/ble/index.ts b/services/ble/index.ts
index 2cb5ce1..3f6488d 100644
--- a/services/ble/index.ts
+++ b/services/ble/index.ts
@@ -36,6 +36,7 @@ export const bleManager: IBLEManager = {
   setWiFi: (deviceId: string, ssid: string, password: string) => getBLEManager().setWiFi(deviceId, ssid, password),
   getCurrentWiFi: (deviceId: string) => getBLEManager().getCurrentWiFi(deviceId),
   rebootDevice: (deviceId: string) => getBLEManager().rebootDevice(deviceId),
+  cleanup: () => getBLEManager().cleanup(),
 };
 
 // Re-export types
diff --git a/services/ble/types.ts b/services/ble/types.ts
index 4a2b682..32b6696 100644
--- a/services/ble/types.ts
+++ b/services/ble/types.ts
@@ -57,4 +57,5 @@ export interface IBLEManager {
   setWiFi(deviceId: string, ssid: string, password: string): Promise<boolean>;
   getCurrentWiFi(deviceId: string): Promise<WiFiStatus | null>;
   rebootDevice(deviceId: string): Promise<void>;
+  cleanup(): Promise<void>;
 }