diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -244,6 +244,18 @@
   );
 }
 
+function useViewerIsMember(
+  threadInfo: ?(ThreadInfo | LegacyRawThreadInfo | RawThreadInfo),
+): boolean {
+  return React.useMemo(() => {
+    return !!(
+      threadInfo &&
+      threadInfo.currentUser.role !== null &&
+      threadInfo.currentUser.role !== undefined
+    );
+  }, [threadInfo]);
+}
+
 function isMemberActive(
   memberInfo: MemberInfoWithPermissions | MinimallyEncodedThickMemberInfo,
 ): boolean {
@@ -1905,6 +1917,7 @@
   useCommunityRootMembersToRole,
   useThreadHasPermission,
   viewerIsMember,
+  useViewerIsMember,
   threadInChatList,
   useIsThreadInChatList,
   useThreadsInChatList,
diff --git a/native/components/community-list-item.react.js b/native/components/community-list-item.react.js
new file mode 100644
--- /dev/null
+++ b/native/components/community-list-item.react.js
@@ -0,0 +1,218 @@
+// @flow
+
+import * as React from 'react';
+import { useState } from 'react';
+import { View } from 'react-native';
+
+import {
+  leaveThreadActionTypes,
+  useLeaveThread,
+} from 'lib/actions/thread-actions.js';
+import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
+import { useJoinCommunity } from 'lib/shared/community-utils.js';
+import {
+  getCommunity,
+  useThreadHasPermission,
+  useViewerIsMember,
+} from 'lib/shared/thread-utils.js';
+import type {
+  JoinCommunityStep,
+  OngoingJoinCommunityData,
+} from 'lib/types/community-types';
+import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
+import { threadPermissions } from 'lib/types/thread-permission-types.js';
+import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
+import { useDispatchActionPromise } from 'lib/utils/redux-promise-utils.js';
+
+import PrimaryButton from './primary-button.react.js';
+import SingleLine from './single-line.react.js';
+import ThreadAvatar from '../avatars/thread-avatar.react.js';
+import { nonThreadCalendarQuery } from '../navigation/nav-selectors.js';
+import { NavContext } from '../navigation/navigation-context.js';
+import { useSelector } from '../redux/redux-utils.js';
+import { useStyles } from '../themes/colors.js';
+import type { TextStyle, ViewStyle } from '../types/styles.js';
+
+type Props = {
+  +threadInfo: ThreadInfo,
+  +style?: ViewStyle,
+  +textStyle?: TextStyle,
+};
+
+function CommunityListItem(props: Props): React.Node {
+  const { threadInfo: initialThreadInfo, style, textStyle } = props;
+
+  // initialThreadInfo will not update if the user leaves or joins the thread,
+  // so we also need reduxThreadInfo to track thread membership and permissions
+  const reduxThreadInfo: ?ThreadInfo = useSelector(
+    state => threadInfoSelector(state)[initialThreadInfo.id],
+  );
+
+  const [threadInfo, setThreadInfo] = React.useState(initialThreadInfo);
+
+  React.useEffect(() => {
+    if (reduxThreadInfo) {
+      setThreadInfo(reduxThreadInfo);
+    } else {
+      setThreadInfo(initialThreadInfo);
+    }
+  }, [initialThreadInfo, reduxThreadInfo]);
+
+  const navContext = React.useContext(NavContext);
+  const calendarQuery = useSelector(state =>
+    nonThreadCalendarQuery({
+      redux: state,
+      navContext,
+    }),
+  );
+  const communityID = getCommunity(threadInfo);
+  const [ongoingJoinData, setOngoingJoinData] =
+    React.useState<?OngoingJoinCommunityData>(null);
+  const [step, setStep] = React.useState<JoinCommunityStep>('inactive');
+
+  const joinCommunity = useJoinCommunity({
+    communityID,
+    keyserverOverride: null,
+    calendarQuery,
+    ongoingJoinData,
+    setOngoingJoinData,
+    step,
+    setStep,
+  });
+
+  const canLeaveThread = useThreadHasPermission(
+    threadInfo,
+    threadPermissions.LEAVE_THREAD,
+  );
+
+  const styles = useStyles(unboundStyles);
+  const resolvedThreadInfo = useResolvedThreadInfo(threadInfo);
+
+  const isMember = useViewerIsMember(threadInfo);
+  const [joinStatus, setJoinStatus] = useState<
+    'joined' | 'notJoined' | 'joining' | 'leaving',
+  >(`notJoined`);
+  React.useEffect(() => {
+    setJoinStatus(isMember ? 'joined' : 'notJoined');
+  }, [isMember]);
+
+  const handleJoin = React.useCallback(async () => {
+    setJoinStatus('joining');
+    try {
+      await joinCommunity();
+      setJoinStatus('joined');
+    } catch (error) {
+      console.error('Failed to join community:', error);
+      setJoinStatus('notJoined');
+    }
+  }, [joinCommunity]);
+
+  const dispatchActionPromise = useDispatchActionPromise();
+  const callLeaveThread = useLeaveThread();
+
+  const handleLeave = React.useCallback(async () => {
+    setJoinStatus('leaving');
+    try {
+      const leavePromise = callLeaveThread({ threadID: threadInfo.id });
+      void dispatchActionPromise(leaveThreadActionTypes, leavePromise);
+      await leavePromise;
+      setJoinStatus('notJoined');
+    } catch (error) {
+      console.error('Failed to leave community:', error);
+      setJoinStatus('joined');
+    }
+  }, [callLeaveThread, dispatchActionPromise, threadInfo.id]);
+
+  let buttonContent;
+  if (joinStatus === 'joined' && !canLeaveThread) {
+    buttonContent = (
+      <PrimaryButton
+        label="Leave"
+        variant="disabled"
+        style={styles.primaryButton}
+        textStyle={styles.buttonText}
+        onPress={() => {}}
+      />
+    );
+  } else if (joinStatus === 'joining' || joinStatus === 'leaving') {
+    buttonContent = (
+      <PrimaryButton
+        variant="loading"
+        style={styles.primaryButton}
+        textStyle={styles.buttonText}
+        onPress={() => {}}
+      />
+    );
+  } else if (joinStatus === 'joined') {
+    buttonContent = (
+      <PrimaryButton
+        onPress={handleLeave}
+        label="Leave"
+        variant="enabled"
+        style={[styles.primaryButton, styles.primaryButtonToggled]}
+        textStyle={[styles.buttonText, styles.buttonTextToggled]}
+      />
+    );
+  } else {
+    buttonContent = (
+      <PrimaryButton
+        onPress={handleJoin}
+        label="Join"
+        variant="enabled"
+        style={styles.primaryButton}
+        textStyle={styles.buttonText}
+      />
+    );
+  }
+
+  return (
+    <View style={[styles.container, style]}>
+      <ThreadAvatar size="S" threadInfo={resolvedThreadInfo} />
+      <SingleLine style={[styles.text, textStyle]}>
+        {resolvedThreadInfo.uiName}
+      </SingleLine>
+      {buttonContent}
+    </View>
+  );
+}
+
+const MemoizedCommunityListItem: React.ComponentType<Props> =
+  React.memo<Props>(CommunityListItem);
+
+const unboundStyles = {
+  activityIndicatorContainer: {
+    marginLeft: 10,
+  },
+  container: {
+    flex: 1,
+    flexDirection: 'row',
+    alignItems: 'center',
+    paddingHorizontal: 24,
+    paddingVertical: 10,
+  },
+  text: {
+    color: 'modalForegroundLabel',
+    fontSize: 16,
+    paddingLeft: 9,
+    paddingRight: 12,
+    marginLeft: 8,
+  },
+  primaryButton: {
+    marginLeft: 'auto',
+    height: 24,
+    minWidth: 70,
+  },
+  primaryButtonToggled: {
+    backgroundColor: 'primaryButton',
+    borderColor: 'primaryButton',
+  },
+  buttonText: {
+    fontSize: 14,
+    padding: 2,
+  },
+  buttonTextToggled: {
+    color: 'primaryButtonText',
+  },
+};
+
+export default MemoizedCommunityListItem;
diff --git a/native/components/primary-button.react.js b/native/components/primary-button.react.js
--- a/native/components/primary-button.react.js
+++ b/native/components/primary-button.react.js
@@ -5,7 +5,7 @@
 
 import Button from './button.react.js';
 import { useColors, useStyles } from '../themes/colors.js';
-import type { ViewStyle } from '../types/styles';
+import type { ViewStyle, TextStyle } from '../types/styles';
 
 type Props = {
   +onPress: () => mixed,
@@ -13,9 +13,10 @@
   +variant?: 'enabled' | 'disabled' | 'loading' | 'outline',
   +children?: React.Node,
   +style?: ViewStyle,
+  +textStyle?: TextStyle,
 };
 function PrimaryButton(props: Props): React.Node {
-  const { onPress, label, variant } = props;
+  const { onPress, label, variant, textStyle } = props;
 
   const styles = useStyles(unboundStyles);
   const buttonStyle = React.useMemo(() => {
@@ -36,17 +37,21 @@
     variant,
   ]);
   const buttonTextStyle = React.useMemo(() => {
+    let baseStyle;
     if (variant === 'disabled') {
-      return [styles.buttonText, styles.disabledButtonText];
+      baseStyle = [styles.buttonText, styles.disabledButtonText];
     } else if (variant === 'loading') {
-      return [styles.buttonText, styles.invisibleLoadingText];
+      baseStyle = [styles.buttonText, styles.invisibleLoadingText];
+    } else {
+      baseStyle = [styles.buttonText];
     }
-    return styles.buttonText;
+    return textStyle ? [...baseStyle, textStyle] : baseStyle;
   }, [
     variant,
     styles.buttonText,
     styles.disabledButtonText,
     styles.invisibleLoadingText,
+    textStyle,
   ]);
 
   const colors = useColors();
diff --git a/native/themes/colors.js b/native/themes/colors.js
--- a/native/themes/colors.js
+++ b/native/themes/colors.js
@@ -120,6 +120,8 @@
   panelSeparator: designSystemColors.shadesWhite60,
   purpleLink: designSystemColors.violetDark100,
   purpleButton: designSystemColors.violetDark100,
+  primaryButton: designSystemColors.shadesBlack95,
+  primaryButtonText: designSystemColors.shadesWhite100,
   reactionSelectionPopoverItemBackground: designSystemColors.shadesBlack75,
   redText: designSystemColors.errorPrimary,
   spoiler: designSystemColors.spoilerColor,
@@ -223,6 +225,8 @@
   panelSeparator: designSystemColors.shadesBlack75,
   purpleLink: designSystemColors.violetLight100,
   purpleButton: designSystemColors.violetDark100,
+  primaryButton: designSystemColors.shadesWhite100,
+  primaryButtonText: designSystemColors.shadesBlack95,
   reactionSelectionPopoverItemBackground: designSystemColors.shadesBlack75,
   redText: designSystemColors.errorPrimary,
   spoiler: designSystemColors.spoilerColor,