diff --git a/lib/hooks/invite-links.js b/lib/hooks/invite-links.js
--- a/lib/hooks/invite-links.js
+++ b/lib/hooks/invite-links.js
@@ -1,6 +1,7 @@
 // @flow
 
-import React from 'react';
+import invariant from 'invariant';
+import * as React from 'react';
 
 import {
   useCreateOrUpdatePublicLink,
@@ -8,9 +9,18 @@
   useDisableInviteLink,
   disableInviteLinkLinkActionTypes,
 } from '../actions/link-actions.js';
+import {
+  joinThreadActionTypes,
+  useJoinThread,
+} from '../actions/thread-actions.js';
 import { createLoadingStatusSelector } from '../selectors/loading-selectors.js';
+import type { CalendarQuery } from '../types/entry-types.js';
 import type { SetState } from '../types/hook-types.js';
-import type { InviteLink } from '../types/link-types.js';
+import type {
+  InviteLink,
+  InviteLinkVerificationResponse,
+} from '../types/link-types.js';
+import type { LoadingStatus } from '../types/loading-types.js';
 import { useDispatchActionPromise } from '../utils/redux-promise-utils.js';
 import { useSelector } from '../utils/redux-utils.js';
 
@@ -99,4 +109,87 @@
   );
 }
 
-export { useInviteLinksActions };
+const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
+  joinThreadActionTypes,
+);
+
+type AcceptInviteLinkParams = {
+  +verificationResponse: InviteLinkVerificationResponse,
+  +inviteSecret: string,
+  +calendarQuery: () => CalendarQuery,
+  +onFinish: () => mixed,
+  +onInvalidLinkDetected: () => mixed,
+};
+function useAcceptInviteLink(params: AcceptInviteLinkParams): {
+  +joinCommunity: () => mixed,
+  +joinThreadLoadingStatus: LoadingStatus,
+} {
+  const {
+    verificationResponse,
+    inviteSecret,
+    calendarQuery,
+    onFinish,
+    onInvalidLinkDetected,
+  } = params;
+
+  React.useEffect(() => {
+    if (verificationResponse.status === 'already_joined') {
+      onFinish();
+    }
+  }, [onFinish, verificationResponse.status]);
+
+  const callJoinThread = useJoinThread();
+  const communityID = verificationResponse.community?.id;
+  const createJoinCommunityAction = React.useCallback(async () => {
+    invariant(
+      communityID,
+      'CommunityID should be present while calling this function',
+    );
+    const query = calendarQuery();
+    try {
+      const result = await callJoinThread({
+        threadID: communityID,
+        calendarQuery: {
+          startDate: query.startDate,
+          endDate: query.endDate,
+          filters: [
+            ...query.filters,
+            { type: 'threads', threadIDs: [communityID] },
+          ],
+        },
+        inviteLinkSecret: inviteSecret,
+      });
+      onFinish();
+      return result;
+    } catch (e) {
+      onInvalidLinkDetected();
+      throw e;
+    }
+  }, [
+    calendarQuery,
+    callJoinThread,
+    communityID,
+    inviteSecret,
+    onFinish,
+    onInvalidLinkDetected,
+  ]);
+  const dispatchActionPromise = useDispatchActionPromise();
+  const joinCommunity = React.useCallback(() => {
+    void dispatchActionPromise(
+      joinThreadActionTypes,
+      createJoinCommunityAction(),
+    );
+  }, [createJoinCommunityAction, dispatchActionPromise]);
+
+  const joinThreadLoadingStatus = useSelector(joinThreadLoadingStatusSelector);
+
+  return React.useMemo(
+    () => ({
+      joinCommunity,
+      joinThreadLoadingStatus,
+    }),
+    [joinCommunity, joinThreadLoadingStatus],
+  );
+}
+
+export { useInviteLinksActions, useAcceptInviteLink };
diff --git a/native/navigation/invite-link-modal.react.js b/native/navigation/invite-link-modal.react.js
--- a/native/navigation/invite-link-modal.react.js
+++ b/native/navigation/invite-link-modal.react.js
@@ -1,16 +1,10 @@
 // @flow
 
-import invariant from 'invariant';
 import * as React from 'react';
 import { View, Text, ActivityIndicator } from 'react-native';
 
-import {
-  useJoinThread,
-  joinThreadActionTypes,
-} from 'lib/actions/thread-actions.js';
-import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
+import { useAcceptInviteLink } from 'lib/hooks/invite-links.js';
 import type { InviteLinkVerificationResponse } from 'lib/types/link-types.js';
-import { useDispatchActionPromise } from 'lib/utils/redux-promise-utils.js';
 
 import { nonThreadCalendarQuery } from './nav-selectors.js';
 import { NavContext } from './navigation-context.js';
@@ -35,11 +29,30 @@
   const styles = useStyles(unboundStyles);
   const { invitationDetails, secret } = props.route.params;
 
-  React.useEffect(() => {
-    if (invitationDetails.status === 'already_joined') {
-      props.navigation.goBack();
-    }
-  }, [invitationDetails.status, props.navigation]);
+  const navContext = React.useContext(NavContext);
+  const calendarQuery = useSelector(state =>
+    nonThreadCalendarQuery({
+      redux: state,
+      navContext,
+    }),
+  );
+  const onInvalidLinkDetected = React.useCallback(
+    () =>
+      props.navigation.setParams({
+        invitationDetails: {
+          status: 'invalid',
+        },
+        secret,
+      }),
+    [props.navigation, secret],
+  );
+  const { joinCommunity, joinThreadLoadingStatus } = useAcceptInviteLink({
+    verificationResponse: invitationDetails,
+    inviteSecret: secret,
+    calendarQuery,
+    onFinish: props.navigation.goBack,
+    onInvalidLinkDetected,
+  });
 
   const header = React.useMemo(() => {
     if (invitationDetails.status === 'valid') {
@@ -69,55 +82,6 @@
     styles.invitation,
   ]);
 
-  const callJoinThread = useJoinThread();
-  const navContext = React.useContext(NavContext);
-  const calendarQuery = useSelector(state =>
-    nonThreadCalendarQuery({
-      redux: state,
-      navContext,
-    }),
-  );
-  const communityID = invitationDetails.community?.id;
-  const createJoinCommunityAction = React.useCallback(async () => {
-    invariant(
-      communityID,
-      'CommunityID should be present while calling this function',
-    );
-    const query = calendarQuery();
-    try {
-      const result = await callJoinThread({
-        threadID: communityID,
-        calendarQuery: {
-          startDate: query.startDate,
-          endDate: query.endDate,
-          filters: [
-            ...query.filters,
-            { type: 'threads', threadIDs: [communityID] },
-          ],
-        },
-        inviteLinkSecret: secret,
-      });
-      props.navigation.goBack();
-      return result;
-    } catch (e) {
-      props.navigation.setParams({
-        invitationDetails: {
-          status: 'invalid',
-        },
-        secret,
-      });
-      throw e;
-    }
-  }, [calendarQuery, callJoinThread, communityID, props.navigation, secret]);
-  const dispatchActionPromise = useDispatchActionPromise();
-  const joinCommunity = React.useCallback(() => {
-    void dispatchActionPromise(
-      joinThreadActionTypes,
-      createJoinCommunityAction(),
-    );
-  }, [createJoinCommunityAction, dispatchActionPromise]);
-  const joinThreadLoadingStatus = useSelector(joinThreadLoadingStatusSelector);
-
   const buttons = React.useMemo(() => {
     if (invitationDetails.status === 'valid') {
       const joinButtonContent =
@@ -178,10 +142,6 @@
   );
 }
 
-const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
-  joinThreadActionTypes,
-);
-
 const unboundStyles = {
   modal: {
     backgroundColor: 'modalForeground',
diff --git a/web/invite-links/accept-invite-modal.react.js b/web/invite-links/accept-invite-modal.react.js
--- a/web/invite-links/accept-invite-modal.react.js
+++ b/web/invite-links/accept-invite-modal.react.js
@@ -1,17 +1,11 @@
 // @flow
 
-import invariant from 'invariant';
 import * as React from 'react';
 
-import {
-  useJoinThread,
-  joinThreadActionTypes,
-} from 'lib/actions/thread-actions.js';
 import ModalOverlay from 'lib/components/modal-overlay.react.js';
 import { useModalContext } from 'lib/components/modal-provider.react.js';
-import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
+import { useAcceptInviteLink } from 'lib/hooks/invite-links.js';
 import { type InviteLinkVerificationResponse } from 'lib/types/link-types.js';
-import { useDispatchActionPromise } from 'lib/utils/redux-promise-utils.js';
 
 import css from './accept-invite-modal.css';
 import Button, { buttonThemes } from '../components/button.react.js';
@@ -28,51 +22,20 @@
   const [isLinkValid, setIsLinkValid] = React.useState(
     verificationResponse.status === 'valid',
   );
+  const onInvalidLinkDetected = React.useCallback(
+    () => setIsLinkValid(false),
+    [],
+  );
   const { popModal } = useModalContext();
-
-  React.useEffect(() => {
-    if (verificationResponse.status === 'already_joined') {
-      popModal();
-    }
-  }, [popModal, verificationResponse.status]);
-
-  const callJoinThread = useJoinThread();
   const calendarQuery = useSelector(nonThreadCalendarQuery);
-  const communityID = verificationResponse.community?.id;
-  const createJoinCommunityAction = React.useCallback(async () => {
-    invariant(
-      communityID,
-      'CommunityID should be present while calling this function',
-    );
-    const query = calendarQuery();
-    try {
-      const result = await callJoinThread({
-        threadID: communityID,
-        calendarQuery: {
-          startDate: query.startDate,
-          endDate: query.endDate,
-          filters: [
-            ...query.filters,
-            { type: 'threads', threadIDs: [communityID] },
-          ],
-        },
-        inviteLinkSecret: inviteSecret,
-      });
-      popModal();
-      return result;
-    } catch (e) {
-      setIsLinkValid(false);
-      throw e;
-    }
-  }, [calendarQuery, callJoinThread, communityID, inviteSecret, popModal]);
-  const dispatchActionPromise = useDispatchActionPromise();
-  const joinCommunity = React.useCallback(() => {
-    void dispatchActionPromise(
-      joinThreadActionTypes,
-      createJoinCommunityAction(),
-    );
-  }, [createJoinCommunityAction, dispatchActionPromise]);
-  const joinThreadLoadingStatus = useSelector(joinThreadLoadingStatusSelector);
+
+  const { joinCommunity, joinThreadLoadingStatus } = useAcceptInviteLink({
+    verificationResponse,
+    inviteSecret,
+    calendarQuery,
+    onFinish: popModal,
+    onInvalidLinkDetected,
+  });
 
   let content;
   if (verificationResponse.status === 'valid' && isLinkValid) {
@@ -126,8 +89,4 @@
   );
 }
 
-const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
-  joinThreadActionTypes,
-);
-
 export default AcceptInviteModal;