diff --git a/src/renderer/components/hooks.js b/src/renderer/components/hooks.js
index 1fbcc970..814adf65 100644
--- a/src/renderer/components/hooks.js
+++ b/src/renderer/components/hooks.js
@@ -108,3 +108,28 @@ export const useEmitter = key => {
     return services.emitters[key]
   }, [key, services])
 }
+
+/**
+ * Track the number of pending invitations (invited:* keys in the store).
+ * Re-counts on every batch event that touches invited keys.
+ */
+export const useInvitationCount = () => {
+  const { store } = useServices()
+  const [count, setCount] = React.useState(0)
+
+  React.useEffect(() => {
+    if (!store) return
+
+    const recount = () => store.keys('invited').then(keys => setCount(keys.length))
+    recount()
+
+    const handler = ({ operations }) => {
+      if (operations.some(op => op.key && op.key.startsWith('invited:'))) recount()
+    }
+
+    store.on('batch', handler)
+    return () => store.off('batch', handler)
+  }, [store])
+
+  return count
+}
diff --git a/src/renderer/components/sidebar/ScopeSwitcher.css b/src/renderer/components/sidebar/ScopeSwitcher.css
index 92d1a0f8..32575c30 100644
--- a/src/renderer/components/sidebar/ScopeSwitcher.css
+++ b/src/renderer/components/sidebar/ScopeSwitcher.css
@@ -64,6 +64,24 @@
   opacity: 1;
 }
 
+.a74a-badge {
+  position: absolute;
+  top: 4px;
+  right: 4px;
+  min-width: 16px;
+  height: 16px;
+  padding: 0 4px;
+  border-radius: 8px;
+  background: #e9746c;
+  color: white;
+  font-size: 10px;
+  font-weight: 600;
+  line-height: 16px;
+  text-align: center;
+  pointer-events: none;
+  box-sizing: border-box;
+}
+
 .a74a-breadcrumb {
   display: flex;
   flex-direction: column;
diff --git a/src/renderer/components/sidebar/ScopeSwitcher.js b/src/renderer/components/sidebar/ScopeSwitcher.js
index ce8642c3..1389c885 100644
--- a/src/renderer/components/sidebar/ScopeSwitcher.js
+++ b/src/renderer/components/sidebar/ScopeSwitcher.js
@@ -2,7 +2,7 @@ import * as R from 'ramda'
 import React from 'react'
 import PropTypes from 'prop-types'
 import * as mdi from '@mdi/js'
-import { useMemento } from '../hooks'
+import { useMemento, useInvitationCount } from '../hooks'
 import { defaultSearch } from './state'
 import * as ID from '../../ids'
 import { Tooltip } from 'react-tooltip'
@@ -99,6 +99,11 @@ const ScopeSwitch = props => {
     <>
       <span id={`ss-${props.label}`} className={className} onClick={handleClick}>
         <Icon className={ enabled ? 'a74a-icon-active' : 'a74a-icon'} path={mdi[props.label]} />
+        {props.badge > 0 && (
+          <span className='a74a-badge'>
+            {props.badge > 99 ? '99+' : props.badge}
+          </span>
+        )}
       </span>
       <Tooltip anchorSelect={`#ss-${props.label}`} content={props.toolTip} delayShow={750} />
     </>
@@ -112,6 +117,7 @@ ScopeSwitch.propTypes = {
   label: PropTypes.string.isRequired,
   scope: PropTypes.string.isRequired,
   toolTip: PropTypes.string,
+  badge: PropTypes.number,
   onScopeClick: PropTypes.func
 }
 
@@ -120,12 +126,15 @@ ScopeSwitch.propTypes = {
  * Vertical column of scope icons
  */
 export const ScopeSwitcher = ({ onScopeClick }) => {
+  const invitationCount = useInvitationCount()
+
   const defaultSwitches = Object.entries(SCOPES).map(([scope, label]) =>
     <ScopeSwitch
       key={scope}
       scope={scope}
       label={label}
       toolTip={TOOLTIPS[scope]}
+      badge={scope === `@${ID.INVITED}` ? invitationCount : 0}
       onScopeClick={onScopeClick}
     />
   )