diff --git a/src/frontend/screens/Exchange/ExchangeScreenContent.test.tsx b/src/frontend/screens/Exchange/ExchangeScreenContent.test.tsx
new file mode 100644
index 000000000..fbafff82b
--- /dev/null
+++ b/src/frontend/screens/Exchange/ExchangeScreenContent.test.tsx
@@ -0,0 +1,94 @@
+import * as React from 'react';
+import type {SyncState} from '@comapeo/core-react';
+import {
+  createNavigationContainerRef,
+  NavigationContainer,
+} from '@react-navigation/native';
+import {createNativeStackNavigator} from '@react-navigation/native-stack';
+import {QueryClient, QueryClientProvider} from '@tanstack/react-query';
+import {act, render, screen} from '@testing-library/react-native';
+import {IntlProvider} from 'react-intl';
+import {Text} from 'react-native';
+
+import {ExchangeScreenContent} from './ExchangeScreenContent';
+
+const mockConnectServers = jest.fn();
+const mockDisconnectServers = jest.fn();
+const mockSetAutostopDataSyncTimeout = jest.fn();
+
+jest.mock('@comapeo/core-react', () => ({
+  ...jest.requireActual('@comapeo/core-react'),
+  useDataSyncProgress: () => null,
+  useIsArchiveDevice: () => ({data: false}),
+  useStartSync: () => ({mutate: jest.fn()}),
+  useStopSync: () => ({mutate: jest.fn()}),
+  useConnectSyncServers: () => ({mutate: mockConnectServers}),
+  useDisconnectSyncServers: () => ({mutate: mockDisconnectServers}),
+  useSetAutostopDataSyncTimeout: () => ({
+    mutate: mockSetAutostopDataSyncTimeout,
+  }),
+}));
+
+jest.mock('../../contexts/ActiveProjectContext', () => ({
+  useActiveProject: () => ({projectId: 'project-id'}),
+}));
+
+jest.mock('../../hooks/server/projects', () => ({
+  useActiveArchiveServer: () => undefined,
+}));
+
+jest.mock('../../hooks/useLocalDiscoveryState', () => ({
+  useLocalDiscoveryState: () => 'CoMapeo Test Wi-Fi',
+}));
+
+const syncState = {
+  initial: {isSyncEnabled: true},
+  data: {isSyncEnabled: false},
+  remoteDeviceSyncState: {},
+} satisfies SyncState;
+
+type StackParams = {Sync: undefined; Other: undefined};
+
+const Stack = createNativeStackNavigator<StackParams>();
+
+const queryClient = new QueryClient();
+
+const Wrapper = ({children}: {children: React.ReactNode}) => (
+  <QueryClientProvider client={queryClient}>
+    <IntlProvider locale="en">{children}</IntlProvider>
+  </QueryClientProvider>
+);
+
+test('connects servers on focus and disconnects them on blur', async () => {
+  const navigationRef = createNavigationContainerRef<StackParams>();
+
+  await render(
+    <React.Suspense fallback={null}>
+      <NavigationContainer ref={navigationRef}>
+        <Stack.Navigator>
+          <Stack.Screen name="Sync">
+            {() => <ExchangeScreenContent syncState={syncState} />}
+          </Stack.Screen>
+          <Stack.Screen name="Other">{() => <Text>Other</Text>}</Stack.Screen>
+        </Stack.Navigator>
+      </NavigationContainer>
+    </React.Suspense>,
+    {wrapper: Wrapper},
+  );
+
+  await expect(screen.findByText('No devices found.')).resolves.toBeVisible();
+
+  expect(mockSetAutostopDataSyncTimeout).toHaveBeenCalledTimes(1);
+  expect(mockSetAutostopDataSyncTimeout).toHaveBeenCalledWith({after: null});
+  expect(mockConnectServers).toHaveBeenCalledTimes(1);
+  expect(mockDisconnectServers).not.toHaveBeenCalled();
+
+  await act(async () => {
+    navigationRef.navigate('Other');
+  });
+
+  await expect(screen.findByText('Other')).resolves.toBeVisible();
+
+  expect(mockDisconnectServers).toHaveBeenCalledTimes(1);
+  expect(mockConnectServers).toHaveBeenCalledTimes(1);
+});
diff --git a/src/frontend/screens/Exchange/ExchangeScreenContent.tsx b/src/frontend/screens/Exchange/ExchangeScreenContent.tsx
index a172bb095..ec89974a2 100644
--- a/src/frontend/screens/Exchange/ExchangeScreenContent.tsx
+++ b/src/frontend/screens/Exchange/ExchangeScreenContent.tsx
@@ -1,8 +1,12 @@
 import * as React from 'react';
 import {
+  useConnectSyncServers,
   useDataSyncProgress,
+  useDisconnectSyncServers,
   useIsArchiveDevice,
+  useSetAutostopDataSyncTimeout,
   useStartSync,
+  useStopSync,
   type SyncState,
 } from '@comapeo/core-react';
 import {useFocusEffect} from '@react-navigation/native';
@@ -128,9 +132,15 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
   const {formatMessage: t} = useIntl();
   const queryClient = useQueryClient();
   const navigation = useNavigationFromRoot();
-  const {projectApi, projectId} = useActiveProject();
+  const {projectId} = useActiveProject();
   const progress = useDataSyncProgress({projectId});
   const startSync = useStartSync({projectId});
+  const stopSync = useStopSync({projectId});
+  const {mutate: connectServers} = useConnectSyncServers({projectId});
+  const {mutate: disconnectServers} = useDisconnectSyncServers({projectId});
+  const {mutate: setAutostopDataSyncTimeout} = useSetAutostopDataSyncTimeout({
+    projectId,
+  });
   const {data: isArchive} = useIsArchiveDevice();
 
   const currentMediaSetting = isArchive ? 'everything' : 'previews';
@@ -157,13 +167,13 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
   useFocusEffect(
     React.useCallback(() => {
       // Unset sync autostop when screen mounts
-      projectApi.$sync.setAutostopDataSyncTimeout(null);
+      setAutostopDataSyncTimeout({after: null});
       // Connects to Servers
-      projectApi.$sync.connectServers();
+      connectServers();
       return () => {
-        projectApi.$sync.disconnectServers();
+        disconnectServers();
       };
-    }, [projectApi]),
+    }, [connectServers, disconnectServers, setAutostopDataSyncTimeout]),
   );
 
   const shouldAutostopSyncWhenLeavingScreen =
@@ -174,7 +184,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
     React.useCallback(() => {
       const unsubscribe = navigation.addListener('beforeRemove', () => {
         if (shouldAutostopSyncWhenLeavingScreen) {
-          projectApi.$sync.setAutostopDataSyncTimeout(30_000);
+          setAutostopDataSyncTimeout({after: 30_000});
         }
         queryClient.invalidateQueries({
           queryKey: [ROOT_QUERY_KEY, 'projects', projectId],
@@ -187,7 +197,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
       };
     }, [
       navigation,
-      projectApi,
+      setAutostopDataSyncTimeout,
       queryClient,
       projectId,
       shouldAutostopSyncWhenLeavingScreen,
@@ -245,7 +255,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
             fullSize={true}
             onPress={() => {
               // TODO: Catch/surface error
-              projectApi.$sync.stop();
+              stopSync.mutate(undefined);
             }}
             text={t(m.stop)}
             renderIcon={({size, color}) => (
@@ -271,7 +281,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
             fullSize={true}
             onPress={() => {
               // TODO: Catch/surface error
-              projectApi.$sync.stop();
+              stopSync.mutate(undefined);
             }}
             text={t(m.stop)}
             renderIcon={({size, color}) => (
@@ -299,7 +309,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
             fullSize={true}
             onPress={() => {
               // TODO: Catch/surface error
-              projectApi.$sync.stop();
+              stopSync.mutate(undefined);
             }}
             text={t(m.stop)}
             renderIcon={({size, color}) => (
@@ -325,7 +335,7 @@ export const ExchangeScreenContent = ({syncState}: {syncState: SyncState}) => {
             fullSize={true}
             onPress={() => {
               // TODO: Catch/surface error
-              projectApi.$sync.stop();
+              stopSync.mutate(undefined);
             }}
             text={t(m.stop)}
             renderIcon={({size, color}) => (